Momentum and Impulse

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 law of conservation of momentum?

Back

The law states that in a closed system, the total momentum before an event is equal to the total momentum after the event.

Front

What is an elastic collision?

Back

An elastic collision is a type of collision where both momentum and kinetic energy are conserved.

Front

What is an inelastic collision?

Back

An inelastic collision is a type of collision where momentum is conserved, but kinetic energy is not.

Front

How does doubling the speed of an object affect its momentum?

Back

Doubling the speed of an object doubles its momentum, since momentum is directly proportional to velocity.

Front

What happens to momentum in a perfectly inelastic collision?

Back

In a perfectly inelastic collision, the colliding objects stick together, and their combined momentum is conserved.

Front

What is the relationship between force, time, and impulse?

Back

Impulse is equal to the product of the average force applied and the time duration over which it is applied.

Front

How does collision time affect the force experienced by an object?

Back

A longer collision time results in a smaller average force experienced by the object, according to the impulse-momentum theorem.

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.