Momentum and impulse test review 2024

Front

What is momentum?

Back

Momentum is the product of an object's mass and its velocity, represented by the formula p = mv.

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as impulse = force × time.

Front

What is the principle of conservation of momentum?

Back

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

Front

What is an elastic collision?

Back

An elastic collision is a collision in which both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

An inelastic collision is a collision in which momentum is conserved, but kinetic energy is not.

Front

How do you calculate average force?

Back

Average force can be calculated using the formula: average force = change in momentum / time taken.

Front

What is the relationship between impulse and momentum?

Back

Impulse is equal to the change in momentum of an object.

Front

What happens to momentum in a perfectly elastic collision?

Back

In a perfectly elastic collision, both momentum and kinetic energy are conserved.

Front

What happens to momentum in a perfectly inelastic collision?

Back

In a perfectly inelastic collision, momentum is conserved, but the objects stick together and kinetic energy is not conserved.

Front

What is the formula for calculating momentum?

Back

The formula for momentum is p = mv, where p is momentum, m is mass, and v is velocity.