Collisions

Front

What is an Elastic Collision?

Back

An elastic collision is a type of collision where both momentum and kinetic energy are conserved. In this type of collision, the objects bounce off each other without any loss of energy.

Front

What is an Inelastic Collision?

Back

An inelastic collision is a type of collision where momentum is conserved, but kinetic energy is not. In this type of collision, the objects may stick together after colliding.

Front

State Newton's 3rd Law of Motion.

Back

For every action, there is an equal and opposite reaction.

Front

What does the Law of Conservation of Momentum state?

Back

The Law of Conservation of Momentum states that the total momentum of a closed system remains constant if no external forces act on it.

Front

What happens to momentum in a closed system during a collision?

Back

Momentum before the collision equals momentum after the collision.

Front

Define momentum.

Back

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

Front

What is the difference between elastic and inelastic collisions?

Back

In elastic collisions, both momentum and kinetic energy are conserved, while in inelastic collisions, only momentum is conserved.

Front

Give an example of an elastic collision.

Back

A good example of an elastic collision is the collision between two billiard balls.

Front

Give an example of an inelastic collision.

Back

An example of an inelastic collision is a car crash where the vehicles crumple together.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of an object due to its motion, calculated using the formula KE = 1/2 mv².