Momentum and Impulse Flashcard

Front

What happens to the kinetic energy of the system in an inelastic collision?

Back

It decreases.

Front

What is the relationship between impulse and change in momentum?

Back

Impulse is equal to the change in momentum.

Front

How does impulse affect the motion of an object?

Back

It changes the velocity or direction of the object.

Front

State the law of conservation of momentum.

Back

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

Front

Give an example of an application of momentum in real life.

Back

Car safety features.

Front

Define momentum.

Back

Momentum is the product of an object's mass and its velocity.

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time.

Front

How is impulse calculated?

Back

Impulse = Force × Time.

Front

What is the unit of momentum?

Back

Kilogram meter per second (kg·m/s).

Front

What is the unit of impulse?

Back

Newton second (N·s) or kilogram meter per second (kg·m/s).