Chapter 4 Review

Front

What does Kinetic Energy depend on?

Back

Kinetic Energy depends on mass and velocity.

Front

What type of energy is produced when you put on the brakes of a bicycle?

Back

Friction causes some of the mechanical energy to convert to thermal energy.

Front

What type of energy does a battery store?

Back

A battery has potential energy.

Front

How do you calculate the Kinetic Energy of an object?

Back

Kinetic Energy (KE) is calculated using the formula KE = 1/2 mv², where m is mass and v is velocity.

Front

What is the Kinetic Energy of a jogger with a mass of 60 kg moving at a speed of 3 m/sec?

Back

The jogger’s Kinetic Energy is 270 J.

Front

What type of energy do gasoline and rocket fuel store?

Back

Gasoline and rocket fuel store chemical energy.

Front

Define Kinetic Energy.

Back

Kinetic Energy is the energy an object possesses due to its motion.

Front

Define Potential Energy.

Back

Potential Energy is the stored energy of an object due to its position or state.

Front

What is the relationship between mass and Kinetic Energy?

Back

Kinetic Energy is directly proportional to the mass of the object; as mass increases, Kinetic Energy increases.

Front

What happens to mechanical energy when brakes are applied to a moving object?

Back

Some of the mechanical energy is converted to thermal energy due to friction.