Unit 2 Summative Assessment - M

1. What property of light waves makes it possible to use waves to transmit information between a space shuttle and NASA mission control centers on the ground? (EQ 2, 5D)

• Light waves have very low velocity.
• Light waves are all visible to human eyes.
• Light waves can travel through a vacuum.

2. Use the picture below to determine which of the following statements is true.(EQ 5B)

• The light is reflected by the water.
• The light is absorbed by the water.
• The light is bent by the water.

3. Which would cause a sound to shatter glass? (EQ 5A)

• long wavelength
• low amplitude
• high amplitude

4. Although ocean waves move, they do not push a floating object along with them. An ocean wave is an example of a mechanical wave. The object does not move because __________. (EQ 2)

• The wave has no force.
• The wave is losing energy downward.
• The wave is transferring energy through the water.

5. Which diagram below illustrates the absorption of light energy?(EQ 5C)

• 
• 
• 

6. Which of the following does NOT travel in the same type of wave as the others? (EQ 5D)

• A cry for help.
• An x-ray in the hospital.
• A ray of sunlight .

7. Which of the following is the most reliable way to communicate through sound? (EQ 6)

• Radio Tower
• Cell Phone
• Megaphone

8. Cup B's material is opaque. Evidence:

• No light passes through
• Some light passes through the cup, but not all.

9. Cup A’s material is translucent. Evidence:

• No light passes through
• Some light passes through the cup, but not all.

10. Cup C’s material is transparent. Evidence:

• All light passes through the cup.
• No light passes through