Physics Flashcards by MO MO

Q

Rate of change of speed

A

Final speed-initial speed/time taken

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Q

Average speed

A

Distance/time

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Q

GPE

A

Mass x height x 9.8

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Q

Kinetic energy

A

1/2 x mass x 2

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Q

Work done

A

Force x distance

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Q

Power

A

Work done/time taken

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Q

Density

A

Mass/volume

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Q

Energy efficiency

A

Useful energy/total energy input

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Q

Newtons 2nd law

A

The acceleration of a force is directly related to the net force and inversely related to its mass

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Q

Hooke law

A

Force=spring stiffness x extension F=ke

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Q

Weight

A

Mass x acceleration m x g

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Q

Newtons second law

A

Force =mass x acceleration

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Q

Acceleration

A

Final velocity -initial velocity/time taken

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Q

Average velocity

A

Displacement/time taken

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Q

Rate of change of speed

A

Final speed - initial speed/time taken

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Q

Average speed

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A

Distance/time

Q

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A