Flashcards
Force and Momentum
Cards in this deck (7)
- 1What is the equation, unit and symbol for Momentum?Momentum= Mass x Velocity
p=mv
Momentum - p
kgms^-1 - 2Newton's first law of motion:An object remains at rest or in uniform motion unless acted on by a force.
- 3Newton's second law of motion:The rate of change of momentum of an object is proportional to the resultant force on it. Resultant force is proportional to the change of momentum per second.
- 4What is the equation that describes Newton's second law of motion?F∝ change of momentum/(time taken)
mv - mu / t
m(v - u)/ t = ma
Including F=ma - 5What is the impulse of a force?The impulse of a force acting on an object is equal to the change of momentum of the object.
the impulse = F∆t = ∆(mv)
Force x time force is active - 6What equation could you use to calculate impact force?F= mv - mu / t
(A re-arrangement of impulse). - 7What does the area under a force time graph represent?The change of momentum or the impulse of the force.
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- A-Level Physics Flashcards on Force and Momentum, created by Euan White on 26/01/2016.
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- Euan White
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