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Physics ­ Work, Energy and Momentum:

Energy and Work:

When an object is moved using a force, work is done on the object by the

Work Done = Energy Transferred

The work done depends on the size of the force and the distances moved.

Work Done(J) = Force(N) x…

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Eg.) If a 0.8kg gun fires a 0.05Kg bullet at 400m/s, at what speed does
the Gun recoil?

Momentum = 0.05 x 400
= 20Kgm/s

(Mass of A x Velocity of A) = (Mass of B x Velocity of B)

Change in Momentum

Force(N) = Change in momentum(Kgm/s) F =…


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