Physics - formulas

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Physics

23 Terms

1

weight

mass x gravitational field strength

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2

force applied to a spring

Spring constant x extension

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3

acceleration

change in velocity/time taken

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4

momentum

mass x velocity

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5

gravitational potential energy

mass x gravitational field strength x height

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6

power

work done/time

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7

efficiency

useful power output/total power output

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8

charge flow

current x time

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9

Power (using potential difference)

potential difference x current

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10

energy transferred

power x time

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11

density

mass/volume

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12

work done

force x distance moved in direction of force

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13

distance travelled

speed x time

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14

resultant force

mass x acceleration

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15

kinetic energy

0.5 x mass x (speed)^2

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16

power (using energy transferred)

energy transferred/time

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17

efficiency

useful output energy transfer/total input energy transfer

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18

wave speed

frequency x wavelength

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19

potential difference

current x resistance

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20

power (using resistance)

current^2 x resistance

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21

energy transferred (using charge flow)

charge flow x potential difference

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22

pressure

Force normal to a surface/area of that surface

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23

moment of a force

Force x distance (normal to direction of force)

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