Unit 5 Test

Front

What is potential energy?

Back

Potential energy is stored energy that has the potential to do work.

Front

What is kinetic energy?

Back

Kinetic energy is the energy of motion.

Front

What happens to mechanical energy as an object falls toward Earth's surface?

Back

Mechanical energy does not change; it is the sum of potential and kinetic energy.

Front

How does light travel?

Back

Light travels in a straight line.

Front

What happens to the energy of a propeller when it is released after being twisted?

Back

Potential energy changes into kinetic energy.

Front

What creates a shadow?

Back

A shadow is created when an object blocks light.

Front

What is the role of a light source in an experiment?

Back

The light source provides illumination to observe how light behaves.

Front

What is the relationship between light and shadows?

Back

Shadows are formed when light is obstructed by an object.

Front

What is an example of energy transformation?

Back

When potential energy in a twisted rubber band is released, it transforms into kinetic energy.

Front

What is the definition of a shadow?

Back

A shadow is a dark area or shape produced by a body coming between rays of light and a surface.