# Section 1 - General Physics, Force And motion Flashcards

What is the principle of moments?

If an object is balanced then the total anti-clockwise moment is equal to the total clockwise moment

What is equilibrium?

When an object has no result force or resultant moment acting on it

What is the equation for a moment?

M = Fd

Moment = force x distance

What is the equation for momentum?

p = mv

Momentum = mass x velocity

What is the principle of momentum?

The principle,e of conservation of momentum says that the momentum before a collision is equal to the momentum after the collision if no external forces act

What is an impulse?

Impulses are the change in momentum of an object on which forces act

What is the impulse word equation?

Impulse = change in force x time = change in momentum

What is impulse measured in?

Ns or Newton seconds