AP Physics Momentum Review

Front

What is the equation to calculate momentum?

Back

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

Front

What happens to the momentum of a student and a hammer when the hammer is thrown on a frictionless surface?

Back

The momentum of the student and the hammer is equal in magnitude but opposite in direction due to the conservation of momentum.

Front

If puck I has 3X the mass of puck II, what quantity remains the same for both pucks when released from rest?

Back

The magnitude of momentum remains the same for both pucks.

Front

What is the formula for the impulse delivered by a ball of mass m with speed v striking a wall at an angle θ?

Back

The impulse is given by 2mv cos θ.

Front

How is the increase in momentum of an object related to the force applied over time?

Back

The increase in momentum is equal to the area under the force vs. time graph.

Front

What is the relationship between kinetic energy and momentum?

Back

Kinetic energy (KE) is related to momentum (p) by the equation KE = p²/(2m).

Front

Define impulse in terms of momentum.

Back

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

Front

What is the principle of conservation of momentum?

Back

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

Front

How does mass affect momentum?

Back

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

Front

What is the unit of momentum?

Back

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