Energy Review for Test

Which best describes how light behaves through each material?

• Material 1: The light ray is scattered in all directions. Material 2: The light ray is refracted
• Material 1: The light ray is absorbed. Material 2: The light ray is reflected.
• Material 1: The light ray is transmitted. Material 2: The light ray is refracted.
• Material 1: The light ray is refracted. Material 2: The light ray is reflected.

The fish appears to be closer to the surface than it really is. What causes this difference?

• Light is reflected
• Light is refracted
• Light is blocked
• Light is focused

Which examples use mechanical energy to perform their functions?

• Examples 1,2, and 4
• Examples 1,3, and 4
• Examples 1 and 2 only
• Examples 3 and 4 only

Which energy transformation happens when the blades are spinning as shown in the picture ?

• Electrical to mechanical
• Chemical to electrical
• Mechanical to electrical
• Chemical to mechanical

Look at the image . Based on the image at what point would the marble have the MOST KINETIC energy?

• W
• X
• Y
• Z

Look at the image. Based on the image at what point would the marble have the MOST POTENTIAL energy?

• W
• X
• Y
• Z

Look at the picture showing 2 planes. The airplanes are identical and flying at the same speed. Airplane W is flying 50 meters higher than airplane X. Which statement best describes the energy of the 2 airplanes?

• Airplane W has a greater kinetic energy than Airplane X
• The 2 airplanes have the. same potential energy but different kinetic energies
• Airplane X has more potential energy than Airplane W
• The 2 airplanes have the same kinetic energy but different potential energy due to the difference in height

The image shows a student performing an experiment testing various types of potential and kinetic energy. At which point does the ball experience the greatest potential energy?

• Position 1
• Position 2
• Position 3
• Position 4

Out of the 4 images showing various examples of potential energy which of the following represents chemical energy?

• The trampoline and the bow and the arrow
• The bow and arrow and the batteries
• The child on the swing
• The batteries in a flashlight

The diagram below shows a student heating a pot of water over a fire. The arrows represent the transfer of thermal energy. Letter A represents heat transfer through the metal pot. Letter B represents heat transfer through currents in the water. Letter C represents heat that is felt in the air surrounding the pot. Which table correctly identifies the type of heat transfer at A, B and C

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