Momentum, Impulse, and Conservation of Momentum

Front

The momentum of an object depends upon the object's ___________&_____________.

Back

mass and velocity.

Front

The purpose of crumple zones on a car is to _____________.

Back

increase the time of impact.

Front

What is the symbol for momentum, with units?

Back

p, kg m/s.

Front

A runner has a momentum of 670 kg m/s and is traveling at a velocity of 9 m/s. What is his mass?

Back

74.4 kg.

Front

2 balls collide and bounce off of each other. During the collision total momentum remained constant and total kinetic energy remained constant. What type of collision is this?

Back

Elastic Collision.

Front

Define momentum.

Back

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

Front

What is impulse?

Back

Impulse is the change in momentum of an object when a force is applied over a period of time, calculated as Impulse = Force × Time.

Front

State the law of conservation of momentum.

Back

The total momentum of a closed system remains constant if no external forces act on it.

Front

What is an inelastic collision?

Back

An inelastic collision is one in which total kinetic energy is not conserved, although total momentum is.

Front

What is an elastic collision?

Back

An elastic collision is one in which both total momentum and total kinetic energy are conserved.