AP C Momentum review

Front

What is impulse in physics?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time. It has the same dimensions as momentum.

Front

State the Law of Conservation of Momentum.

Back

The total momentum before a collision is equal to the total momentum after a collision.

Front

How do you calculate the final velocity of two colliding objects that stick together?

Back

The final velocity (v_f) can be calculated using the formula: v_f = (M * v) / (M + m), where M is the mass of the first object, m is the mass of the second object, and v is the initial velocity of the first object.

Front

What is the relationship between momentum before and after a collision?

Back

The total momentum before a collision is equal to the total momentum after a collision.

Front

In an elastic collision, what happens to kinetic energy?

Back

In an elastic collision, kinetic energy is also conserved.

Front

Define momentum in physics.

Back

Momentum is the product of the mass and velocity of an object, represented as p = mv.

Front

What is the formula for calculating momentum?

Back

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

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved. In inelastic collisions, momentum is conserved, but kinetic energy is not.

Front

What is a perfectly inelastic collision?

Back

A perfectly inelastic collision is one in which two objects collide and stick together, moving as a single object after the collision.

Front

What is the unit of momentum?

Back

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