4 Facts to Know for the AP Physics 1 Exam

4 Facts to Know for the AP Physics 1 Exam

• A top-class AP physics student knows the fundamental facts of the subject just as a top-class musician knows the scales.

• The exam won't ask you to spit back facts and solve problems.
• You have to know them in order to understand the complicated reasoning that is demanded on every question.

• You should use this chapter as a guide all year.
• Through use, you can learn the state ments.

• These facts are printed out for my class.
• Whenever they are doing physics, it's helpful to carry around reference.

• Determine your test readiness.

• Regardless of the total distance traveled, Displacement indicates how far an object ends up from its initial position.

• The average displacement is divided by the time interval.

• An object's instantaneous velocity is how fast it moves.

• The vertical axis of the position-time graph can be used to determine how far from the detector an object is.

• The slope of the position-time graph can be used to determine how fast an object is moving.

• The position-time graph is sloped to determine which way an object is moving.

• An object is moving away from the detector.

• An object is moving toward the detector when there is a position-time slope like a back slash.

• The vertical axis of the graph shows how fast an object is moving.

• If the velocity-time graph is above or below the horizontal axis, an object is moving in one direction.

• If the velocity-time graph is above the zontal axis, an object is moving away from the detector.

• If the velocity-time graph is below the horizontal axis, an object is moving toward the detector.

• The area between the horizontal axis and the velocity-time graph is used to determine how far an object travels.

• It is not possible to determine how far away the object is from the detector.

• Straight segments can be represented on a graph.

• An object's speed is measured in one second.

• An object's speed is related to its direction of motion.

• The direction of motion has an effect on the object's acceleration.

• Every second, objects in free fall gain or lose 10 m/s of speed.

• You need to follow the steps to solve the calculation.

• The problem can be solved if three of the five variables are known.

• The forces of velocities in opposite directions are the same.

• The speed is the magnitude of the object.

• To approach a projectile problem, make two charts.

• If an object is moving in a straight line, it is in equilibrium.
• There is an object remaining at rest.

• The net force on an object is zero.

• A force is a push or pull.

• A platform scale or a spring scale can be used to measure force.

• Newtons are the units of force.

• The net force is determined by forces acting in the same direction.

• The net force is determined by the forces acting in opposite directions.

• The net force is always in motion.

• The net force is determined by forces acting in the same direction.

• The net force is determined by the forces acting in opposite directions.

• The net force is moving.

• Mass tells how much is contained in an object.

• There are units of mass.

• The force of a planet acting on an object is called weight.

• The field on Earth's surface is 10 N/kg.
• 10 N is the weight of 1 kilo of mass on Earth.

• A normal force is the force of a surface on an object.

• The force acts on a surface.

• A scale is used to read the force.

• Draw the forces to scale to determine the force.
• Measure the diagonal and angle of the rectangle you created.

• The magnitude is the amount of the force.

• The amount of each component can be determined by drawing the diagonal force to scale.

• A free-body diagram can be drawn.

• If necessary, break the forces into components.

• If you get a negative force, start the equations in the direction of acceleration.

• Each force is represented by a labeled arrow.
• Each arrow points to the direction in which the force is acting.

• There is a list of the forces.

• The force of friction is the force of a surface on an object.

• A number that tells how sticky two surfaces are is the coefficients of friction.

• When an object is not moving, the coefficient of static friction is used.

• Depending on the properties of the materials in contact, the coefficients of static friction can take on any value up to a maximum.

• The maximum coefficient of static friction is greater for two surfaces in contact.

• Huge objects attract each other with a force.

• The distance from the object's center to where you are considering is 2.

• The free-fall acceleration is equal to the free-fall field near a planet.

• In all experiments, the mass is the same as the object.

• Break the object's weight into components when it is on an inclined plane.

• A third law force pair is a pair of forces that obey a law.

• A third law force pair cannot act on the same object.

• In radians, it is meas ured.

• A radian is equal to 60 degrees.

• It's measured in rad/s.

• An object's instantaneous angular velocity is how fast it is rotating.

• It is measured in rad/s.

• The centripetal acceleration is independent.

• An equation relating its mass and radius can be given for a complicated object.

• Multiple objects have rotational inertia.

• When there is no net work done by external forces, mechanical energy is conserved.

• When there is no net external Torque, the gnat is conserved.

• No net external force can act in a direction.

• The direction of an object's movement is the same as its direction of movement.

• The change in an object's momentum is equal to the change in impulse.

• The area is under a time graph.

• No external forces can change the system's momentum.

• The total momen tum of two objects is equal to the total momen tum of the other object before the collision.

• The total momentum of two objects moving in the same direction adds together and subtracts.

• When an external net force acts on the system, the center of mass obeys the second law.

• Work can be positive or negative, but does not have a direction.

• The area under a force vs. displacement graph is not done.

• J is the unit of energy that all forms of energy have.

• Define the object or system being described before starting a work-energy problem.

• The units of power are written as watt.

• It is necessary to define a rotational axis before calculating angular momentum.

• The right-hand rule gives the direction of the momentum.

• The system can't change because there aren't any external Torques.

• angular momentums in the same sense add and subtract.

• They should not be combined in a single equation.

• The impulse-momentum theorem can be used for the same reason.

• By the time the Torque is applied, the net Torque is calculated.

• The battery provides the voltage.
• The unit of volts is the measure of voltage.

• Resistance can be provided by a lamp or a Resistor.
• There are units of resistance.

• The amount of charge flowing through a Resistor relates to current.
• The units of current are Amps.

• It is the amount of energy per charge.

• The charge is per time.

• The amount of power per time is called energy.

• There is a synonym for potential difference.

• If they are connected in a single path, they are connected in series.

• The sum of all the individual resistors is the equivalent resistance.

• The total current through the circuit is equal to the current carried by the series resistors.

• The battery's voltage is added to by the voltage across series resistors.

• The loop rule says that the sum of voltage changes around the loop is zero.

• The loop rule is a statement of energy use.

• If you want to use the voltage of the battery with the equivalent resistance of the circuit, you have to use it across a single resistor.

• If the path for current divides, the Resistors are connected in parallel.

• The parallel resistance is less than the individual resistance.

• The total voltage is the same for each and each parallel resistors.

• Parallel resistors carry different currents which add to the total current in the circuit.

• Current entering a junction is the same as current leaving a junction.

• The junction rule is a statement of charge.

• It is connected in a series.

• A voltmeter is used to measure voltage.
• It is connected to a piece of electronics.

• The power is measured in units.

• The power dissipated by the bulb affects the light intensity.

• A real battery has an internal resistance and an EMF.

• The terminal voltage is less than the battery's.

• In units of coulombs, charge is measured.

• Positive charge can counteract negative charge, but charge can't be created or destroyed.

• Microcoulombs' worth of charge is what most charged objects in a laboratory have.

• The hertz is the unit of frequencies.

• The wave's Frequency stays the same when a wave changes materials.

• The material through which the wave moves determines the wave's speed.

• The wave's amplitude affects the amount of energy carried by it.

• The string is stretched or compressed.

• The spring constant is a property of the spring and is always the same.

• N/m is the standard unit of the spring constant.

• It's easy to consider the spring-Earth-object system when dealing with an object hanging from a spring.

• There are many objects that vibrate back and forth.
• The mass on a spring is one of the most common examples of simple motion.

• An object in simple motion makes a position-time graph.

• Waves on an instrument are not the same as waves in the spectrum.

• Longitudinal waves are the sound waves.

• Sound cannot travel through a vacuum.

• The result is a wave.

• The result is a wave.

• Adding the displacements of the two waves can be used to determine the resulting displacement.
• This is called a superposition.

• Two waves of slightly different frequencies produce beats.

• The beat Frequency is the difference between the two waves.

• An observer encounters waves with higher frequencies as a wave source approaches.

• An observer sees waves with a lower Frequency as a wave source moves away.

• The Doppler effect is a change in frequencies due to motion.

• The effect of a sound wave is not related to the Doppler effect.

• The source's Frequency does not change.
• The apparent Frequency is the only thing that changes.

• The pitch of a sound is determined by a sound wave's frequencies.

The sound's sound wave's sound wave's sound wave's sound wave's sound wave's sound wave's sound wave's sound wave's sound wave's sound wave's sound wave's sound wave's sound wave's sound wave

• The sound wave's amplitude affects the energy carried by it.

• The sound in the air is very fast.

• People can hear sound frequencies of tens, hundreds, or thousands ofhertz.
• The majority of musical notes have frequencies in the hundreds ofhertz.

• A standing wave appears to stay in one place.

• There are points on a wave.

• There are positions on standing waves with the largest waves.

• Waves con fines to a region because of the addition of incident and reflected waves.

• The wavelength is measured on a standing wave.

• There are multiples of the fundamental.

• There are only odd multiples of the fundamental.