Conservation of Momentum 4.2

Front

What is an elastic collision?

Back

A collision where objects return to or keep their shape.

Front

What is the principle of conservation of momentum?

Back

In an isolated system, the total momentum before an interaction is equal to the total momentum after the interaction.

Front

What happens to momentum in a closed system during a collision?

Back

The total momentum remains constant.

Front

What is the momentum of a stationary object?

Back

Zero.

Front

What is an example of conservation of momentum?

Back

Two or more interacting objects that initially have no momentum begin moving away from each other.

Front

How do forces behave in a real collision?

Back

They vary in time in a complicated way.

Front

What is an inelastic collision?

Back

A collision where objects stick together after colliding and kinetic energy is not conserved.

Front

What is the formula for momentum?

Back

Momentum (p) = mass (m) × velocity (v).

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, kinetic energy is conserved; in inelastic collisions, kinetic energy is not conserved.

Front

What is the law of conservation of momentum?

Back

The total momentum of a closed system remains constant if no external forces act on it.