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 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 (conservation of momentum).

Front

If two skaters push off each other, what can be said about their speeds?

Back

The skater with the smaller mass will have a greater speed after pushing off, due to the conservation of momentum.

Front

What is the unit of momentum?

Back

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

Front

If a car is stopped at a red light, what is its momentum?

Back

The momentum of a stopped car is zero, as momentum is the product of mass and velocity (p = mv) and velocity is zero.

Front

What is the relationship between mass and momentum?

Back

Momentum is directly proportional to mass; as mass increases, momentum increases if velocity remains constant.

Front

What is the effect of velocity on momentum?

Back

Momentum is directly proportional to velocity; as velocity increases, momentum increases if mass remains constant.

Front

Calculate the momentum of a 50 kg object moving at 10 m/s.

Back

The momentum is 500 kg*m/s (p = mv = 50 kg * 10 m/s).

Front

What is the principle of conservation of momentum?

Back

The principle states that in an isolated system, the total momentum remains constant if no external forces act on it.