Momentum

Front

What is momentum?

Back

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

Front

What is the unit of momentum?

Back

The unit of momentum is kilogram meter per second (kg m/s).

Front

How do you calculate momentum?

Back

Momentum (p) is calculated using the formula p = mv, where m is mass in kilograms and v is velocity in meters per second.

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

If a 2.5 kg ball moving at 5 m/s collides with a stationary ball of the same mass, what is the velocity of the second ball after the collision?

Back

5 m/s

Front

What is the momentum of a 1000-kg car moving at 20 m/s?

Back

20000 kg m/s south.

Front

What is the formula for calculating the momentum of an object?

Back

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

Front

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

Back

In a closed system, the total momentum before the collision is equal to the total momentum after the collision.

Front

What is the momentum of a 0.250 kg cart moving at 0.400 m/s?

Back

0.1 kg m/s.