Energy

What happens when a flashlight is pointed onto water at night?

• The light will travel in the same straight line through the air and water.

• The light will first travel in a straight line and then bend when it hits the water.

• The light will travel in a straight line and then reflect back toward the person when it hits the water.

• The light will bend in the air and then travel in a straight line when it hits the water.

When light bends it is ______

• Reflection
• Absorption
• refraction 
• optical density

When light bounces back it is _____

• Reflected
• Refracted
• Absorbed
• Optical Density

Occurs when an object takes in a light wave

• refraction
• opaque
• absorption
• reflection

What happens when you wear a black shirt on a sunny day?

• reflects
• absorbed

When you stretch a rubber band, you are storing __________ energy. 

• kinetic 
• potential
• none of the above
• all of the above 

Can energy be destroyed

• no
• yes

As a pendulum swings from its highest to lowest position, what happens to its kinetic and potential energy? 

• Both the potential energy and kinetic energy decrease
• The potential energy decreases while the kinetic energy increases 
• The kinetic energy decreases while the potential energy increases 
• Bothe the potential energy and kinetic energy increase 

When a pendulum swings, at which point is kinetic energy highest?

• 1
• 2
• 3
• 4

When a pendulum swings, at which point is potential energy at its greatest?

• 1
• 2
• 3
• 4