Momentum

Front

What is momentum?

Back

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

Front

How is momentum calculated?

Back

Momentum (p) is calculated using the formula p = mv, where 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

What does Newton's First Law state?

Back

Newton's First Law states that an object at rest stays at rest, and an object in motion stays in motion unless acted upon by an external force.

Front

What is Newton's Second Law?

Back

Newton's Second Law states that Force equals mass times acceleration (F = ma).

Front

What is Newton's Third Law?

Back

Newton's Third Law states that for every action, there is an equal and opposite reaction.

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 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 9 kg blob moving at 5 m/s collides with a 5 kg blob at rest, what is their combined velocity after sticking together?

Back

3.2 m/s.