Energy Test

Front

What type of energy is stored in food before it is eaten?

Back

Chemical energy.

Front

When there is friction between surfaces, energy is transferred out of the system as _____________ energy.

Back

Thermal energy.

Front

What happens to the kinetic energy of an object if you double its speed?

Back

The kinetic energy increases significantly.

Front

Which of the following has kinetic energy?

Back

A moving car.

Front

What type of energy is gasoline considered to be?

Back

Chemical energy.

Front

Define kinetic energy.

Back

The energy an object possesses due to its motion.

Front

What is the formula for kinetic energy?

Back

KE = 1/2 mv², where m is mass and v is velocity.

Front

What is thermal energy?

Back

The energy that comes from the temperature of matter.

Front

How does friction affect energy in a system?

Back

Friction converts kinetic energy into thermal energy, causing energy loss.

Front

What is the relationship between mass and kinetic energy?

Back

Kinetic energy increases with mass if speed is constant.