Momentum Flashcard

Front

What is momentum?

Back

Momentum is defined as mass in motion. It is the product of an object's mass and its velocity.

Front

What are the units of momentum?

Back

The units of momentum are kg*m/s.

Front

What is the formula for calculating momentum?

Back

The formula for momentum (p) is p = mass (m) × velocity (v).

Front

When two objects collide, what happens to their momentum?

Back

The total momentum before the collision is equal to the total momentum after the collision, assuming no external forces act on them.

Front

What is the relationship between mass and velocity in momentum?

Back

Momentum is directly proportional to both mass and velocity; increasing either will increase momentum.

Front

Can an object have momentum if it is at rest?

Back

No, an object must be moving to have momentum.

Front

What is the unit of velocity?

Back

The unit of velocity is meters per second (m/s).

Front

If a ball has a momentum of 2 kg*m/s and is moving at 8 m/s, what is its mass?

Back

The mass of the ball is 0.25 kg.

Front

What happens to momentum in an elastic collision?

Back

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

Front

What happens to momentum in an inelastic collision?

Back

In an inelastic collision, momentum is conserved, but kinetic energy is not.