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- 1. Multiple Choice
Why does the straw appear to be bent?
light is reflected
light is absorbed
light is turned
light is refracted
- 2. Multiple Choice
What do we call a material that light can travel through?
air
water
medium
pathway
- 3. Multiple ChoiceWhat is a repeating disturbance or vibration that transfers or moves energy from place to place?MediumWaveCompressionRarefaction
- 4. Multiple ChoiceThe illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-absorbedstoppedreflectedrefracted - 5. Multiple ChoiceWhy does the lower part of the child appear so much different in size from the upper part?The light rays that travel through water and then into air are refracted.The light rays that travel through water and then into air are enlarged.The light rays that travel through air and then into water are reflected.The light rays that travel through air and then into water are reduced.
- 6. Multiple Choice
What is the angle of reflection equal to?
The angle of refraction
The angle of incidence
The angle of absorption
The angle of light
- 7. Multiple Choice
What might explain why light travels in a straight line?
If there is nothing to interfere with light waves, they should travel in a straight line.
Light waves will always travel in a straight line, even if they come into contact with another object.
Light waves don't travel in a straight line.
Light waves travel in a straight line because sound waves travel in a straight line.
- 8. Multiple Choice
What is the angle of incidence?
The angle at which light bends in water.
The angle at which light hits a surface.
The angle at which light is absorbed by an object.
The angle at which light bounces off a surface.
- 9. Multiple ChoiceAccording to the Law of reflection, a light ray striking a mirrorcontinues moving through the mirror in the same directionmoves into the mirror at a slightly different anglebounces off the mirror toward the direction it came frombounces off the mirror at the same angle it hits.
- 10. Multiple ChoiceGlass has a _____________ index of refraction than air.EqualGreaterLessImpossible to say
- 11. Multiple Choice
What is the angle of reflection (θr) in the image?
56o
90o
124o
34o
- 12. Multiple ChoiceLight bending as it passes through a rain drop is an example of...RefractionReflection
- 13. Multiple Choice
A beam of light bends when it passes from air into water, and more when it passes from water into glass. What can you conclude from this fact?
Air is denser than glass
Water is denser than glass
Glass is denser than water
Air is denser than water
- 14. Multiple Choice
A light ray is incident from water to air. Which of the refracted rays is correct?
A
B
C
D
- 15. Multiple Choice
A ray of light travels from air into a glass block.
Which diagram correctly shows the path of the ray through the glass block?
A
B
C
D
- 16. Multiple Choice
Three students stand 2 m apart in front of a plane mirror which is 3 m long.
Student Y is standing opposite the mid-point of the mirror.
How many students can see the images of the other two?
0
1
2
3
- 17. Multiple ChoiceDensity is...the amount of mass in an objectthe amount of space an object takes upthe amount of mass in a given spacethe weight of an object
- 18. Multiple Choice
The line 90 degress through the refracting or reflecting surface is called?
Medium
Normal
Incidence
Reflection
- Answer choicesTagsAnswer choicesTags