AP Physics C: Mechanics FRQ Room

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AP Physics C: Mechanics Free Response Questions

The best way to get better at FRQs is practice. Browse through dozens of practice AP Physics C: Mechanics FRQs to get ready for the big day.

  • View all (250)
  • Unit 1: Kinematics (36)
  • Unit 3: Work, Energy, and Power (31)
  • Unit 4: Systems of Particles and Linear Momentum (46)
  • Unit 5: Rotation (44)
  • Unit 6: Oscillations (58)
  • Unit 7: Gravitation (35)
Unit 1: Kinematics

Analysis of a Velocity vs. Time Graph in a Lab Experiment

In an experiment on an air track, a cart's velocity was recorded and is depicted in the following gr

Hard

Calculating Displacement via Integration of a Velocity Function

An object moves in one dimension with its velocity described by $$v(t)=4*t-2$$ m/s. Determine the di

Easy

Calculus-Based Position Function Analysis

An object moves along a straight path with its position given by $$x(t)=t^3 - 6*t^2 + 9*t$$. A table

Hard

Car Acceleration on a Highway: Calculus Approach

A car's position along a straight highway is given by $$x(t)= 2*t^3 - 6*t^2 + 4*t$$, where $$x$$ is

Easy

Circular Motion: Centripetal Acceleration from Tangential Speed Function

An object moves in a circular path of constant radius $$R = 3.0\,m$$. Its tangential speed varies wi

Hard

Conservation of Energy in a Pendulum

Design an experiment to test the conservation of mechanical energy in a simple pendulum. Provide bot

Medium

Determining Acceleration Due to Gravity from Free Fall

A student conducted an experiment by dropping a metal ball from a height of 45 m. A digital timer co

Medium

Determining Velocity from a Position Function with Differentiation Error

An experiment recorded the position of a particle moving along a straight line, modeled by the funct

Hard

Evaluating Non-Uniform Acceleration from Experimental Data

A student records the following velocity data for an object undergoing non-uniform acceleration:

Extreme

FRQ 5: Projectile from an Elevated Platform (HARD)

A ball is launched from the edge of a cliff 50 m high with an initial speed of $$20\,m/s$$ at an ang

Hard

FRQ 7: Projectile Trajectory Analysis

A projectile is fired from ground level with an initial speed of 50 m/s at an angle of 40° above the

Easy

FRQ 12: Investigating Terminal Velocity in Free Fall with Air Resistance

A researcher examines free fall motion by considering the influence of air resistance. The net force

Extreme

FRQ 14: Analysis of a Parabolic Projectile Trajectory (MEDIUM)

The vertical motion of a projectile is described by the equation $$h(t)=-4.9*t^2+20*t+5$$ (in m). (a

Medium

FRQ 20: Experimental Design – Determining g with a Free Fall Apparatus

In a physics laboratory, researchers design an experiment using a free fall apparatus to measure the

Medium

Impact Analysis: Collision Avoidance

Two vehicles are moving along a straight road. Vehicle A travels with constant velocity described by

Extreme

Inferring Acceleration from Velocity Data Using Calculus

The following table shows the time and corresponding velocity for an object moving in one dimension,

Easy

Integrating an Acceleration Function to Determine Motion

An object's acceleration is described by $$a(t)=6*t-5$$, with initial velocity $$v(0)=2$$ m/s and in

Hard

Kinematic Analysis of a Cyclist

A cyclist starts from rest and accelerates uniformly at 1.5 m/s² for 10 seconds, then rides at a con

Easy

Lab Investigation: Effects of Launch Angle on Projectile Range

In a controlled laboratory experiment, a student launches a projectile with a fixed initial speed of

Medium

Motion Analysis Using Integrated Acceleration Data

Researchers used an accelerometer attached to a moving cart to record its acceleration over a period

Hard

Multi-Dimensional Motion Analysis and Vector Decomposition

An object moves in the plane and its position vector is given by $$\mathbf{r}(t)= (3t^2)\,\mathbf{i}

Hard

Multi-Phase Rocket Motion Analysis

A rocket is launched vertically. Its engines provide a constant acceleration for 10 seconds. After e

Hard

Newton's Second Law and Force Measurement on a Cart

Design an experiment using a cart on a frictionless track with a pulley system to verify Newton's se

Hard

Oscillating Particle under Uniform Acceleration

An object exhibits combined motion described by $$x(t)= 5*t^2 + 3*\sin(2*t)$$ (meters). Analyze its

Extreme

Polynomial Position Function Analysis

A particle’s position along the x-axis is given by the function $$x(t)=t^3 - 6*t^2 + 9*t$$ (in meter

Medium

Projectile Motion with Calculus Integration

An object is launched from ground level with an initial speed of 50 m/s at an angle of 40° above the

Hard

Projectile Motion: Maximum Height and Range

An object is launched from ground level at an angle of 30° above the horizontal with an initial spee

Medium

Projectile Motion: Maximum Height and Range

A projectile is launched from ground level with an initial speed of $$v_0 = 60$$ m/s at an angle of

Easy

Projectile Range Analysis with Angular Misinterpretation

An experiment was conducted to analyze the range of a projectile launched at various angles. A fixed

Hard

Rotational Dynamics: Variable Torque

A solid disk with moment of inertia I is subject to a time-dependent torque given by $$\tau(t)= 5*t$

Hard

Terminal Velocity in Free Fall

Design an experiment to determine the terminal velocity of an object in free fall within a fluid med

Medium

Uniformly Accelerated Motion on an Inclined Plane

A 5.0-kg block is placed on a 30° inclined plane. When released, it slides down with a coefficient o

Easy

Uniformly Accelerated Motion: Incorrect Baseline Velocity

A physics lab experiment tracked the displacement of a moving object using a laser sensor, measuring

Medium

Variable Acceleration Analysis Using Calculus

Design an experiment to investigate the motion of an object under a time-varying force that produces

Hard

Vector Addition in Two-Dimensional Projectile Motion

Design an experiment to test the principles of vector addition by analyzing the two-dimensional moti

Medium

Vector Decomposition in Projectile Motion

A projectile is launched from the ground with an initial speed of 40 m/s at an angle of 50° above th

Medium
Unit 3: Work, Energy, and Power

Bouncing Ball Energy Loss Experiment

A ball is dropped from a known height and allowed to bounce repeatedly. The experiment calculates en

Medium

Collision and Energy Loss Analysis

Two objects collide inelastically and stick together. Object A has mass 3 kg moving at 4 m/s, and Ob

Easy

Determining Instantaneous Power from a Velocity-Time Graph

A car of mass 1200 kg has its velocity measured as a function of time. The graph provided represents

Medium

Elastic Potential Energy and Hooke’s Law

A spring with a spring constant of $$ k = 200 \;N/m $$ is compressed by 0.1 m from its equilibrium p

Easy

Energy Analysis in a Damped Spring-Mass Oscillator

A 1 kg mass attached to a spring with spring constant 100 N/m is initially compressed 0.1 m from its

Hard

Energy Analysis of a Bouncing Ball: Energy Loss and Power

A ball of mass $$m = 0.5 \;\text{kg}$$ is dropped from a height of $$10 \;\text{m}$$ and, after its

Medium

Energy Conservation on a Frictional Ramp with Calculus Approach

A 2-kg block slides down a straight inclined ramp from a height of $$h = 2 \;\text{m}$$. The ramp is

Medium

FRQ 6: Work Done on a Crate on an Inclined Plane

A 20-kg crate is moved up a 30° inclined plane. Experimental measurements of the force component alo

Medium

FRQ 10: Work Done on a Variable Mass System

A recent claim suggests that for systems with variable mass (e.g., rockets), the work done by a non-

Extreme

FRQ 12: Quantifying the Work Done by Friction

An experimental report claims that the negative work done by friction is constant regardless of the

Medium

FRQ 15: Falling Object Speed in a Varying Gravitational Field

A recent study claims that the speed of an object falling in a varying gravitational field can be de

Extreme

FRQ 16: Work and Energy Transformation in a Compound Machine

A 10-kg block is pushed up a frictionless ramp using a compound pulley system. A force sensor record

Hard

Instantaneous and Average Power in a Variable Force System

A block is subjected to a variable force and its velocity varies with time. The force acting on the

Hard

Instantaneous Power in a Variable Force Scenario

An object is subjected to a time-dependent force given by $$F(t)=5*t$$ N, and its displacement is de

Hard

Integration of Work in a Variable Gravitational Field

A researcher is analyzing the work done on a satellite of mass $$m = 1000\,kg$$ moving away from a p

Extreme

Investigating Power Output in a Mechanical System

A researcher measures the power output of a machine that exerts a constant force while moving an obj

Easy

Investigating Work on an Inclined Plane

A researcher is investigating the work done on a 5 kg block being pushed up a frictionless inclined

Easy

Loop-the-Loop Roller Coaster: Work-Energy and Normal Force Analysis

A roller coaster car of mass 300 kg enters a vertical loop with a radius of 10 m.

Hard

Measuring Work Done against Air Resistance in Free Fall

A researcher studies the motion of a 1 kg object falling under gravity with air resistance. The drag

Extreme

Numerical Integration of Work in a Variable Force Field

A researcher studies the work done on a particle moving along the x-axis under the influence of a va

Hard

Potential Energy Curves and Equilibrium Analysis

An object of mass 4 kg has a potential energy function given by $$U(x) = (x - 2)^2 - (2\,x - 3)^3$$.

Extreme

Power and Efficiency in a Wind Turbine

A wind turbine with a rotor radius of 40 m extracts energy from wind. The wind speed varies with hei

Medium

Runner's Power Output Analysis

In a track experiment, a runner’s power output is calculated using the formula $$P = m*a*v$$ obtaine

Medium

Time-dependent Power and Differential Equations

A machine's power output, $$P(t)$$ in watts, is governed by the differential equation $$\frac{dP}{dt

Extreme

Variable Gravitational Acceleration Over a Mountain

A hiker lifts a 10 kg backpack up a mountain where the gravitational acceleration decreases linearly

Hard

Work Done Against Friction

An 8 kg block slides on a horizontal surface with a kinetic friction coefficient of 0.25. It comes t

Easy

Work Done in a Resistive Medium

A particle of mass 1 kg moves in a straight line under the influence of two forces: a constant propu

Extreme

Work Done on a Variable Inclined Plane

An object of mass $$m = 2 \;\text{kg}$$ is moved along an inclined plane whose angle of inclination

Medium

Work-Energy Analysis in Collisions

Two blocks with masses 2 kg and 3 kg undergo collisions under different circumstances. In an elastic

Extreme

Work–Energy and Friction: Analyzing a Sliding Block

A researcher investigates the effect of friction on a sliding block. A 4 kg block is launched horizo

Hard

Work–Energy Experiment with a Spring Launch

A researcher studies a spring-launched projectile. A spring with a spring constant $$k = 500\,N/m$$

Medium
Unit 4: Systems of Particles and Linear Momentum

Astronaut Momentum Conservation

An astronaut with a total mass of 89 kg is floating in space near her shuttle. To reorient herself,

Easy

Ballistic Pendulum Analysis

A bullet with mass $$0.02$$ kg is fired horizontally into a pendulum bob of mass $$0.98$$ kg suspend

Medium

Center of Mass Determination for a Composite L-Shaped Object

Students perform an experiment to determine the center of mass of an L-shaped, composite board. The

Easy

Center of Mass of a Non-uniform Rod

A rod of length $$L = 2\,m$$ has a linear density given by $$\lambda(x) = 5 + 3*x$$ (in kg/m), where

Medium

Center of Mass of a Non-uniform Rod

Consider a rod of length L = 1 m with a linear density given by $$\lambda(x)=10+6*x$$, where x is me

Medium

Center of Mass of a Non-Uniform Rod

A thin rod of length $$0.8$$ m has a linear mass density given by $$\lambda(x) = 5 + 3*x^2$$ (kg/m),

Easy

Center of Mass of a Variable Density Rod

A rod of length $$L = 1\,\text{m}$$ has a linear density given by $$\lambda(x) = 5 + 3*x$$ (in kg/m)

Medium

Center-of-Mass of a Ladder with Varying Linear Density

A ladder of length $$L=2.0\,m$$ has a vertical linear mass density given by $$\lambda(y)=3.0(1+y)$$

Medium

Collision with a Variable Coefficient of Restitution

Two carts on a frictionless track collide head-on. Cart A has a mass of 3 kg and Cart B a mass of 4

Extreme

Combined Translational and Rotational Motion Analysis

A uniform rod of length $$2\,m$$ and mass $$4\,kg$$ is pivoted at one end. Initially at rest, an imp

Extreme

Composite Object: Rod with Attached Sphere

A uniform rod of length 1 m and mass 2 kg has a small sphere of mass 1 kg attached to its right end.

Easy

Conservation of Linear Momentum in a Glider Collision

On a frictionless air track, two gliders collide. The experimental data below list the masses and ve

Easy

Elastic and Inelastic Collision Analysis

Two balls collide head-on. The red ball (mass $$0.5\,kg$$, velocity $$+4\,m/s$$) and the green ball

Medium

Elastic Collision: Conservation of Momentum and Kinetic Energy

Two spheres A and B collide elastically. Sphere A has a mass of 0.6 kg and an initial velocity of $$

Hard

Experimental Design: COM Independence in Collisions

Design an experiment to test the hypothesis that "the motion of the center of mass (COM) of a system

Easy

Explosive Fragmentation: Momentum Transfer

A stationary object with a mass of 12 kg explodes into three fragments in a frictionless environment

Hard

Football Kick: Impulse and Average Force

A 0.4 kg football is punted and achieves a launch speed of 30 m/s as a result of a kick delivered ov

Easy

Force from Potential Energy Graph

A potential energy function for a system is provided in the graph below, where the potential energy

Medium

FRQ 1: Center of Mass of a Non-Uniform Rod

Consider a rod of length $$L = 1.2 \ m$$ with a linear mass density given by $$\lambda(x) = 2 + 3*x$

Medium

FRQ 14: Derivation of the Continuous Center of Mass Formula

Consider a one-dimensional object with a continuous mass distribution described by the density funct

Hard

FRQ 15: Center of Mass versus Center of Gravity

A popular science article claims that for a complex-shaped satellite orbiting Earth, the center of m

Medium

Glider Collision on a Frictionless Air Track

Two gliders on an air track are involved in a head-on elastic collision. The data for the gliders is

Medium

Impulse Analysis in a Variable Mass Rocket

Consider a simplified rocket system where its mass decreases with time as it expels fuel. The mass i

Extreme

Impulse and Kinetic Energy from a Time-Dependent Force on a Car

A 1200 kg car, initially at rest, is subjected to a time-dependent force given by $$F(t)=4000 - 500*

Medium

Impulse and Momentum under a Variable Force

A 5 kg cart on a frictionless track is initially at rest. A variable force given by $$F(t)=10*t$$ (N

Hard

Impulse Calculation from a Force-Time Graph

A force acting on an object is depicted by a force-versus-time graph over the interval from t = 0 s

Medium

Impulse Delivered by a Variable Force on a Soccer Ball

A soccer ball of mass 0.45 kg is struck by a kick that applies a variable force over a brief time in

Hard

Impulse Measurement via Force-Time Graph Analysis

A student attaches a force sensor to a baseball bat to record the force exerted on a ball during imp

Medium

Impulsive Collision Involving Rotation

A 0.5 kg ball traveling at $$8\,m/s$$ horizontally strikes the end of a thin uniform rod of length $

Medium

Mobile Robot Center of Gravity Analysis

A mobile robot features extendable arms that modify its mass distribution. With its arms retracted,

Medium

Momentum Analysis in an Asteroid Breakup

An asteroid of total mass 1000 kg fragments into two pieces in deep space. Fragment A (mass unknown)

Hard

Momentum Analysis of a Variable Mass Rocket

A rocket in space, free from external gravitational forces, expels fuel continuously. Its mass is gi

Extreme

Motion of the Center of Mass Under External Force

Consider a system consisting of two point masses connected by a light rod. Mass m1 = 2 kg is located

Medium

Multiple Collisions in a Figure Skating Routine

In a choreographed figure skating routine, two skaters push off from each other. Skater A has a mass

Easy

Multiple Particle Center of Mass in Two Dimensions

Four particles in a plane have the following properties: Particle A (2 kg) at (0, 0), Particle B (3

Hard

Non-conservative Forces: Block on an Incline with Friction

A 2 kg block slides down a 30° incline that is 5 m long. The coefficient of kinetic friction between

Easy

Nonuniform Circular Disk Center of Mass

A circular disk of radius $$R$$ has a nonuniform surface mass density given by $$\sigma(r,\theta)=\s

Hard

Oblique Collision of Ice-Hockey Pucks

Two ice-hockey pucks collide on frictionless ice. Puck A (mass = 0.2 kg) moves east at 5 m/s, and Pu

Extreme

Off-Center Collision and Angular Momentum

A small ball (mass $$0.5\,kg$$) moving at $$4\,m/s$$ strikes a uniform rod (mass $$3\,kg$$, length $

Hard

Projectile Motion with Air Resistance Approximation

A 0.2 kg projectile is launched with an initial speed of 15 m/s at an angle of 40° above the horizon

Hard

Projectile Motion with Drag Impulse Analysis

A projectile is launched horizontally and experiences a drag force proportional to its velocity, giv

Extreme

Ramp Push Experiment: Variable Force Integration

In a laboratory experiment, a cart on a frictionless ramp is pushed by a force that varies with time

Hard

Rigid Body Dynamics: Torque and Rotation

A uniform meter stick (mass = 0.3 kg, length = 1 m) is pivoted at one end. A perpendicular force is

Medium

Rocket Propulsion with Variable Mass

A rocket has an initial mass of $$M_0 = 50$$ kg (including fuel) and ejects fuel such that its mass

Extreme

Rotational Dynamics Using Center of Mass

A uniform rod of length $$L=2.0\;m$$ and mass M rotates about a frictionless pivot at one end. (a)

Extreme

Work Done by a Variable Force and Momentum Change

A 2-kg block on a frictionless surface is subjected to an external force described by $$F(t) = 15e^{

Extreme
Unit 5: Rotation

Analysis of Rolling Motion on an Incline

Consider a solid cylinder of mass $$M$$ and radius $$R$$ that rolls without slipping down an incline

Medium

Angular Kinematics from Experimental Data

A laboratory experiment measures the angular velocity $$\omega$$ of a rotating object as a function

Medium

Angular Kinematics of a Rotating Disk

Consider a rotating disk for which you want to measure angular displacement, angular velocity, and a

Medium

Angular Momentum Conservation in a Variable-Radius System

A student investigates angular momentum conservation on a rotating stool by attaching a weight to a

Easy

Angular Momentum Conservation on a Merry-Go-Round

A child of mass $$m = 30\,kg$$ stands at the edge of a merry-go-round that is modeled as a uniform d

Easy

Angular Momentum in Explosive Separation

A spinning disk with an initial angular velocity $$\omega_i$$ undergoes an explosion that breaks it

Extreme

Application of the Parallel Axis Theorem

An object with mass 5 kg has a moment of inertia about its center of mass $$I_{cm} = 0.2\,kg\,m^2$$.

Easy

Calculus Derivation of the Moment of Inertia for a Disk

Using the integral formula $$I = \int r^2\,dm$$, derive the moment of inertia for a uniform circular

Hard

Calculus-Based Analysis of Angular Impulse

In rotational dynamics, angular impulse is defined as the integral of torque over a time interval, w

Medium

Comparative Dynamics of Rotational vs. Translational Motion in Rolling Objects

In a complex investigation, an object is rolled down an incline and both its angular and linear acce

Extreme

Composite Body Rotation

A composite object is formed by welding a solid disk to a thin rod. The disk has mass $$M$$ and radi

Medium

Composite Rod and Point Masses Inertia Analysis

A uniform rod of length L and mass M is pivoted about its left end. Two small beads, each of mass m,

Medium

Coupled Rotational Dynamics of Two Disks

Two disks with different masses and radii are mounted on a common, frictionless axle. Disk A has mas

Hard

Dynamics of Coupled Rotational Systems

Two disks are coupled by a belt: Disk A has a moment of inertia $$I_A = 0.8 \text{ kg m}^2$$ and ini

Hard

Energy Conservation in Rotational Motion

A hollow sphere of mass $$m = 5\,kg$$ and radius $$R = 0.3\,m$$ rolls without slipping down an incli

Medium

Energy Conversion in a Rolling Cylinder Experiment

A cylinder rolls without slipping down an inclined plane. The experiment examines how gravitational

Medium

Energy Conversion in Rolling Motion Experiments

In an experiment, a sphere rolls without slipping down an inclined plane of height $$h$$. Measuremen

Medium

Energy Dissipation Due to Friction in a Spinning Disk

A disk is spun up to a high angular velocity and then allowed to slow down due to friction. The expe

Medium

Equilibrium Analysis in Rotational Systems

A seesaw, modeled as a uniform beam 4 m long pivoted exactly at its center, is in rotational equilib

Easy

Evaluating the Impact of Frictional Torque on Rotational Motion

A researcher studies how a constant frictional torque affects the rotational motion of a spinning ob

Medium

FRQ 11: Impact of Mass Distribution on Angular Acceleration

Two wheels have identical mass M and radius R. Wheel A has all its mass concentrated at the rim (\(I

Easy

FRQ 12: Combined Translational and Rotational Motion with Slipping

A disk of mass M = 2.00 kg and radius R = 0.30 m is released on a 30° inclined plane with a kinetic

Hard

FRQ 14: Energy Loss in a Rotating Flywheel Due to Friction

A flywheel with moment of inertia \(I = 8.00\,kg\cdot m^2\) is initially spinning at \(\omega_0 = 15

Easy

Investigating Non-uniform Density Effects on Moment of Inertia

Design an experiment to determine the moment of inertia for an object with a non-uniform mass distri

Hard

Kinetic Energy Redistribution in Rotating Systems

A rotating disk initially has two weights attached at its rim, resulting in a moment of inertia $$I_

Medium

Lever and Torque Computations

This problem involves calculating torque in a lever system. A diagram is provided below.

Easy

Mass Redistribution and Kinetic Energy in Rotating Systems

In a rotating system, a person on a rotating platform moves closer to the axis, reducing the system’

Hard

Moment of Inertia of a Hollow Cylinder with Thickness

Derive an expression for the moment of inertia of a hollow cylinder with inner radius $$R_1$$, outer

Hard

Parallel Axis Theorem Application in Complex Systems

A composite object consists of a uniform rod of mass $$M = 4\,kg$$ and length $$L = 3\,m$$, and an a

Medium

Parallel Axis Theorem: Composite Body Moment of Inertia

Consider a composite object consisting of a solid disk (mass $$M = 4.0 \text{ kg}$$, radius $$R = 0.

Hard

Relation Between Linear and Angular Velocity on a Rotating Disk

In an experiment, a rotating disk is used to measure the linear speed of points located at different

Easy

Rolling Motion and Energy Conservation: Rolling Cylinder on an Incline

A solid cylinder of mass $$M = 5.0 \text{ kg}$$ and radius $$R = 0.4 \text{ m}$$ rolls without slipp

Hard

Rolling Motion Down an Inclined Plane

A solid cylinder of mass m and radius R rolls without slipping down an inclined plane of height h, s

Medium

Rolling Motion Energy Analysis on an Inclined Plane

A cylinder is allowed to roll down an inclined plane without slipping, converting gravitational pote

Medium

Rolling Motion of a Sphere on an Incline

A solid sphere of mass M and radius R rolls without slipping down an inclined plane of height h star

Medium

Rolling Motion on an Inclined Plane

A solid cylinder of mass $$M$$ and radius $$R$$ rolls without slipping down an inclined plane from a

Medium

Rolling with Slipping Transition

A solid sphere of mass $$M$$ and radius $$R$$ is released from rest on an inclined plane with an ang

Hard

Rotational Impulse and Change in Angular Momentum

A flywheel initially at rest receives a constant torque impulse over a brief time interval.

Easy

Rotational Inertia of a Hollow Cylinder vs. a Solid Cylinder

Compare the rotational inertias of a solid cylinder and a thin-walled hollow cylinder, both of mass

Medium

Seesaw Rotational Equilibrium

Two children are sitting on opposite ends of a seesaw (a uniform beam pivoting about its center). Ch

Easy

Simulation Analysis of Rotational Motion with Non-uniform Mass Distribution

A simulation of a rotating flexible system shows that the moment of inertia, $$I$$ (in kg m^2), chan

Medium

Torque in a Multi-force System: Seesaw Equilibrium

A seesaw of length $$L = 3.0 \text{ m}$$ is balanced on a fulcrum located 1.0 m from the left end. T

Medium

Torsion Pendulum Method for Irregular Objects' Inertia

This experiment uses a torsion pendulum to determine the moment of inertia of irregular objects. The

Hard

Variable Torque Function Integration

Consider a rotating body with constant moment of inertia I = 5 kg·m². The applied torque is time dep

Hard
Unit 6: Oscillations

Amplitude and Maximum Speed Relationship in SHM

A mass-spring oscillator undergoes simple harmonic motion with amplitude $$A$$ and angular frequency

Medium

Analysis of Phase Shift in Oscillator Data

An oscillator is described by the equation $$y = 0.03 \sin(8t + \phi_0)$$. It is experimentally meas

Hard

Calculus Derivation of Velocity and Acceleration in SHM

Educational materials claim that 'the instantaneous velocity and acceleration of a simple harmonic o

Easy

Calculus-Based Derivation of Work Done in Stretching a Spring

Investigate the work done in stretching a spring from its natural length using calculus.

Easy

Calculus-Based Prediction of Maximum Speed

A photogate system is set up to record the speed of a mass-spring oscillator. Answer the following p

Easy

Comparative Dynamics of Mass-Spring and Pendulum Oscillators

Analyze the motion of two oscillatory systems: a mass-spring oscillator and a simple pendulum (using

Extreme

Comparative Energy Analysis: SHM vs. Pendulum

Compare the energy transformations in a spring-mass oscillator and a simple pendulum (operating unde

Hard

Comparing Sinusoidal and Non-Sinusoidal Oscillatory Motion

In some experiments, the oscillatory motion observed may deviate from a pure sinusoid. Consider a sy

Hard

Complex SHM: Superposition of Two Harmonic Motions

A block experiences two independent harmonic motions such that its displacement is given by $$x(t)=

Hard

Composite Oscillator: Two Springs in Series

A block with mass $$m = 1.0\,kg$$ is attached to two springs connected in series, with spring consta

Hard

Damped Oscillation: Logarithmic Decrement Analysis

A spring-mass oscillator exhibits damped oscillations, and the amplitudes of successive cycles are r

Hard

Damped Oscillations in a Spring-Mass System

In an experiment exploring damped oscillations, a block attached to a spring is set oscillating on a

Hard

Damped Oscillations: Amplitude Decay Analysis

A mass-spring oscillator with $$m = 0.2\,kg$$ and damping constant $$b = 0.1\,kg/s$$ experiences dam

Hard

Derivation of SHM Equations Using Calculus

Starting with Newton’s second law and Hooke’s law for a mass-spring system, derive the differential

Hard

Derivation of the SHM Differential Equation

Starting from basic principles, derive the differential equation that governs the motion of a mass a

Hard

Deriving Equations for a Damped Harmonic Oscillator

An experiment is designed to study the effects of damping in a spring-mass oscillator. This version

Hard

Determination of Gravitational Acceleration Using a Vertical Oscillator

A vertical spring-mass oscillator reaches equilibrium when the spring stretches by a distance $$d$$

Easy

Determination of Spring Constant Using SHM Data

An experiment on a mass-spring oscillator provides the following data for different masses and their

Hard

Determining Maximum Speed from Energy Considerations

An oscillator of mass $$m = 0.1 \; kg$$ is attached to a spring with a spring constant of $$k = 250

Easy

Determining Spring Constant from Force-Displacement Data

In a laboratory experiment, the force exerted by a spring is measured for various displacements. The

Easy

Differentiation in SHM: Velocity and Acceleration

An oscillator is described by the function $$y = A * \sin(\omega * t + \phi_0)$$. Investigate the ve

Medium

Energy Analysis of a Simple Pendulum

A simple pendulum with length \(L = 1.0\,m\) and mass \(m = 0.3\,kg\) is released from rest at an in

Medium

Energy Conservation in a Mass–Spring Oscillator

Examine energy conservation in a mass–spring system and its experimental verification.

Medium

Energy Exchange in SHM

Consider a mass-spring oscillator with displacement given by: $$x(t) = A * \cos(\omega t)$$, with

Hard

Energy Transformation in SHM

A block of mass $$m = 0.2 \; kg$$ oscillates on a horizontal spring with a force constant of $$k = 1

Medium

Energy Transformations in a Mass-Spring System

A researcher investigates energy transformations in a mass-spring oscillator. The system consists of

Medium

Energy Transformations in SHM

Consider a block attached to a spring undergoing simple harmonic motion with displacement $$x(t)=A\s

Medium

Equation of Motion for a Simple Pendulum Beyond Small Angle Approximation

A researcher examines the motion of a simple pendulum without relying on the small-angle approximati

Extreme

Evaluating Hooke's Law in Spring Oscillators

A recent media report claims that 'any spring, when compressed by 5 cm, always exerts the same resto

Medium

Experimental Analysis of SHM Data

The displacement data for a mass-spring system were recorded during a laboratory experiment. The fol

Medium

Forced Oscillations and Resonance

A mass-spring system is driven by an external force of the form \(F(t) = F_0 \cos(\omega_d t)\) and

Extreme

Friction Effects in Horizontal Oscillatory Systems

A block attached to a horizontal spring oscillates with amplitude $$A$$, but friction is present. Th

Medium

FRQ 6: Pendulum Motion and the Small Angle Approximation

A simple pendulum is tested for various small angular displacements. The measured periods for oscill

Easy

FRQ 15: Determination of the Phase Constant

An oscillator with amplitude $$A = 0.05\ m$$ and angular frequency $$\omega = 8\ rad/s$$ is observed

Medium

FRQ 16: Maximum Speed in SHM via Energy Methods

Experimental data for a mass–spring oscillator, including amplitude, mass, spring constant, and meas

Medium

FRQ 19: Vertical Oscillator Dynamics

A mass is attached to a vertical spring. When displaced by a distance $$y$$ from its equilibrium pos

Hard

FRQ2: Maximum Speed of a Spring Oscillator via Energy Conservation

Consider a mass attached to a spring oscillating on a frictionless surface. The spring has a force c

Medium

FRQ14: Oscillations on an Inclined Plane

A block is attached to a spring and placed on a frictionless inclined plane that makes an angle of $

Extreme

FRQ18: Effect of Mass Variation on the Oscillation Period

The period \(T\) of a mass-spring oscillator is given by the formula: $$T = 2\pi\sqrt{\frac{m}{k}}.

Easy

FRQ20: Energy Dissipation in Damped Pendulum Oscillations

A damped pendulum oscillates with small angles such that its motion is approximately described by $

Hard

Graphical Analysis of SHM: Determining Phase and Frequency

A researcher records the oscillatory motion of a block on a spring and generates a position-vs.-time

Medium

Influence of Initial Phase on Oscillator Motion

Consider an oscillator described by $$y = A\sin(\omega t + \phi_0)$$. Explore how variations in the

Medium

Investigation of Energy Conservation in SHM Using Calculus

A researcher analyses a mass-spring oscillator with its displacement given by $$y(t) = 0.1 * \cos(15

Hard

Kinematics and Phase Angle Determination

An oscillator is described by the equation $$y = A\sin(\omega t + \phi_0)$$ with an initial conditio

Medium

Kinematics of SHM: Period and Frequency Measurements

Analyze the kinematics of a simple harmonic oscillator using time measurements.

Easy

Mass Dependence in Oscillatory Motion

A spring with a force constant of $$k = 300 \; N/m$$ is used in two experiments. In the first, a blo

Easy

Nonlinear Pendulum Oscillations and Error Analysis

A pendulum with a length of $$L = 2.0\,m$$ is released from an initial angle of 45° (approximately 0

Hard

Period and Frequency Determination

A mass on a spring is observed to take $$0.20\,s$$ to move from its maximum displacement on one side

Easy

Period and Frequency Determination from Half Cycle Data

A mass-spring oscillator completes half of a full cycle (i.e. moving from maximum displacement on on

Easy

SHM with Phase Shift: Initial Conditions Analysis

An oscillator is described by the equation: $$y(t) = A * \sin(2\pi * f * t + \phi)$$ In a particul

Hard

Sinusoidal Analysis of SHM with Phase Shift

Examine a sinusoidally described simple harmonic oscillator with a phase shift.

Hard

Sinusoidal Description and Phase Constant in SHM

A spring-mass oscillator has an amplitude $$A = 0.04 \; m$$ and a frequency $$f = 5.0 \; Hz$$. The d

Medium

Sinusoidal SHM with Phase Shift

An oscillator undergoes simple harmonic motion described by the equation $$y(t) = A\sin(\omega t + \

Medium

Spring Force and Elastic Potential Energy

A spring with a force constant $$k = 300\,N/m$$ and a natural length of 0.50 m is stretched to a len

Easy

Spring Force and Energy Analysis

A researcher is studying the behavior of a horizontal spring. The spring has a natural length of 12

Easy

Vertical Oscillations on a Spring

A block of mass $$m = 1.5\,kg$$ is attached to a vertical spring with a force constant of $$k = 300\

Medium

Vertical Oscillator with Offset Equilibrium

A vertical mass-spring system has a mass of $$m = 1.0\,kg$$ attached to a spring with force constant

Medium

Vertical Spring-Mass Oscillator Analysis

In this experiment, a block of mass is attached to a vertical spring. After the block reaches equili

Medium
Unit 7: Gravitation

Analysis of a Gravitational Potential Energy Graph

A graph representing gravitational potential energy as a function of distance is provided below. The

Hard

Analysis of Low Earth Orbit Satellite Decay

A low Earth orbit (LEO) satellite experiences gradual orbital decay due to atmospheric drag. Analyze

Medium

Analysis of Tidal Forces Acting on an Orbiting Satellite

A researcher studies the tidal forces acting on a satellite orbiting a massive planet. Due to the fi

Medium

Angular Momentum Conservation in Orbits

Analyze the relationship between orbital radius and angular momentum as depicted in the provided gra

Medium

Barycenter of the Sun-Earth System

A researcher investigates the center of mass (barycenter) of the Sun-Earth system. Given that the ma

Easy

Cometary Orbits: Analyzing Highly Eccentric Trajectories

Comets often exhibit highly eccentric orbits. Their dynamics can provide insight into gravitational

Hard

Derivation of Orbital Period in Binary Star Systems

A researcher studies a binary star system in which two stars of masses $$m_1$$ and $$m_2$$ orbit the

Medium

Designing a Modern Cavendish Experiment

A researcher designs an experiment modeled after the Cavendish torsion balance to determine the grav

Hard

Determination of Gravitational Constant Using a Compound Pendulum

A compound pendulum experiment is conducted to determine the gravitational constant (G) by measuring

Hard

Determining the Gravitational Constant using a Torsion Balance

An experimental apparatus utilizing a torsion balance is used to measure the gravitational forces be

Medium

Dynamics of a Falling Object in a Gravitational Field

A mass is dropped from a height in a gravitational field and its motion is tracked to study energy c

Easy

Eccentricity and Elliptical Orbits

Discuss the role of eccentricity in elliptical orbits and derive the orbit equation in polar coordin

Hard

Effects of Eccentricity on Planetary Orbits

A series of simulations have been conducted for planetary orbits with varying eccentricity. The foll

Medium

Elliptical Orbits and Angular Motion

A planet follows an elliptical orbit around its star. Investigate how variations in orbital distance

Hard

Elliptical Orbits and Eccentricity Calculation

An object is in an elliptical orbit around a star. (a) Define the eccentricity $$e$$ in relation to

Medium

Experimental Design for Measuring Gravitational Constants

Design an experiment using a torsion balance to measure the gravitational constant $$G$$.

Extreme

Experimental Verification of Conservation of Energy in a Gravitational Field

A pendulum experiment is conducted to verify the conservation of mechanical energy in a gravitationa

Easy

FRQ 13: Orbital Transfer Maneuver – Hohmann Transfer

A spacecraft in a circular orbit of radius $$r_1$$ wishes to transfer to a higher circular orbit of

Hard

FRQ 15: Gravitational Anomalies and Their Effects on Orbits

A satellite experiences a small perturbation in the gravitational potential due to a local mass anom

Extreme

Gravitational Assist Maneuver Simulation

Gravitational assist maneuvers, which use the gravity of a planet to alter a spacecraft’s trajectory

Extreme

Gravitational Energy in a Three-Body System

Consider three point masses m1, m2, and m3 placed at the vertices of a triangle. Analyze the gravita

Hard

Gravitational Potential Energy in a Non-Uniform Field

A spacecraft of mass m moves radially from a distance R₀ to a distance R from a planet of mass M. Th

Hard

Gravitational Tidal Forces

Consider a spacecraft of linear size L located at a distance R from the center of a massive body of

Medium

Gravity Assist in Three-Body Dynamics

In a gravitational slingshot (gravity assist) maneuver, a spacecraft can change its velocity by inte

Extreme

Modeling Tidal Forces with Calculus

Tidal forces arise due to the gradient in gravitational force across an object. These forces can cau

Extreme

Newton vs. Einstein: Conceptual Analysis of Gravity

Compare and contrast Newton's Law of Gravitation with Einstein's theory of General Relativity. Answe

Extreme

Newtonian Approximation of Gravitational Lensing

Although gravitational lensing is accurately described by General Relativity, a simplified Newtonian

Extreme

Orbit Stability from Potential Energy Diagrams

Analyze the provided potential energy diagram and determine the regions corresponding to stable and

Hard

Orbital Decay due to Atmospheric Drag

A satellite in low Earth orbit experiences atmospheric drag, which can be modeled as a force $$F_d =

Extreme

Orbital Decay Due to Atmospheric Drag

A satellite in low Earth orbit experiences atmospheric drag, resulting in a gradual decrease of its

Hard

Orbital Transfer and the Hohmann Maneuver

A spacecraft performs a Hohmann transfer to move from a circular orbit of radius $$r_1$$ to a higher

Hard

Orbital Transfer Trajectories and Hohmann Transfers

A spacecraft in low Earth orbit (LEO) is planning a Hohmann transfer to reach a geosynchronous orbit

Hard

Perturbation Analysis in Elliptical Orbits

An elliptical orbit is subject to a small, constant perturbing force that causes a slow change in th

Extreme

Planetary Orbits and Energy Considerations

Consider a planet in a highly eccentric orbit. The total orbital energy (kinetic plus potential) is

Extreme

Satellite Orbit Simulation: Finite Burn and Hohmann Transfer Error

A research team develops a computer simulation to model a satellite's orbital transfer using a Hohma

Hard

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Where can I find practice free response questions for the AP Physics C: Mechanics exam?
The free response section of each AP exam varies slightly, so you’ll definitely want to practice that before stepping into that exam room. Here are some free places to find practice FRQs :
  • Of course, make sure to run through College Board's past FRQ questions!
  • Once you’re done with those go through all the questions in the AP Physics C: MechanicsFree Response Room. You can answer the question and have it grade you against the rubric so you know exactly where to improve.
  • Reddit it also a great place to find AP free response questions that other students may have access to.
How do I practice for AP AP Physics C: Mechanics Exam FRQs?
Once you’re done reviewing your study guides, find and bookmark all the free response questions you can find. The question above has some good places to look! while you’re going through them, simulate exam conditions by setting a timer that matches the time allowed on the actual exam. Time management is going to help you answer the FRQs on the real exam concisely when you’re in that time crunch.
What are some tips for AP Physics C: Mechanics free response questions?
Before you start writing out your response, take a few minutes to outline the key points you want to make sure to touch on. This may seem like a waste of time, but it’s very helpful in making sure your response effectively addresses all the parts of the question. Once you do your practice free response questions, compare them to scoring guidelines and sample responses to identify areas for improvement. When you do the free response practice on the AP Physics C: Mechanics Free Response Room, there’s an option to let it grade your response against the rubric and tell you exactly what you need to study more.
How do I answer AP Physics C: Mechanics free-response questions?
Answering AP Physics C: Mechanics free response questions the right way is all about practice! As you go through the AP AP Physics C: Mechanics Free Response Room, treat it like a real exam and approach it this way so you stay calm during the actual exam. When you first see the question, take some time to process exactly what it’s asking. Make sure to also read through all the sub-parts in the question and re-read the main prompt, making sure to circle and underline any key information. This will help you allocate your time properly and also make sure you are hitting all the parts of the question. Before you answer each question, note down the key points you want to hit and evidence you want to use (where applicable). Once you have the skeleton of your response, writing it out will be quick, plus you won’t make any silly mistake in a rush and forget something important.