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Fourth Grade (Grade 4) Light and Optics Questions

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Grade 4 Light and Optics
Allows light to pass through so that whatever is behind can be seen.
  1. Transparent
  2. Translucent
  3. Opaque
Grade 4 Light and Optics
In a vacuum, light travels at a speed of                 kilometers per second.
  1. 30,000
  2. 300,000
  3. 3,000
  4. 3,000,000
Grade 4 Light and Optics
                means the light is taken in by the object.
  1. reflected
  2. transmitted
  3. absorbed
  4. refracted
Grade 4 Light and Optics
Which type of object scatters light as it passes through?
  1. transparent
  2. translucent
  3. radiant
  4. opaque
Grade 4 Light and Optics
What is the bending of light waves?
  1. refraction
  2. reflection
  3. transparent
  4. crest
Grade 4 Light and Optics
Light always travels in a                 line.
  1. straight
  2. curvy
  3. oval
  4. square
Grade 4 Light and Optics
What is the bouncing back of light waves?
  1. reflection
  2. refraction
  3. frequency
  4. transparent
Grade 4 Light and Optics
Scientists refer to sunlight as                .
  1. rainbow
  2. black light
  3. purple light
  4. white light
Grade 4 Light and Optics
The bouncing of light off an object.
  1. Refraction
  2. Solar Eclipse
  3. Light Rays
  4. Reflection
Grade 4 Light and Optics
The rainbow of colors is called the:
  1. hues
  2. spectrum
  3. prism
  4. reflection
Grade 4 Light and Optics
Which of the following are sources of light?
  1. Sun
  2. Light Bulb
  3. Flames
  4. All of the above
Grade 4 Light and Optics
Electromagnetic waves you can see are called                  .
  1. ultraviolet light
  2. visible light
  3. gamma rays
  4. infrared waves
Grade 4 Light and Optics
Which type of object blocks all light from passing through?
  1. transparent
  2. translucent
  3. opaque
  4. clear
Grade 4 Light and Optics
Which term describes the bending of light?
  1. refraction
  2. reflection
  3. absorption
  4. translucent
Grade 4 Light and Optics
Does not allow light to pass through.
  1. Transparent
  2. Translucent
  3. Opaque
Grade 4 Light and Optics
Which type of objects allow ALL light to pass through?
  1. transparent
  2. translucent
  3. opaque
  4. None of these
Grade 4 Light and Optics
Which term describes light bouncing off an object?
  1. refraction
  2. reflection
  3. translucent
  4. transformation
Grade 4 Light and Optics
White light is                                    .
  1. anything that makes light
  2. all light colors mixed together
  3. created when objects block light
  4. a shiny surface that reflects light
Grade 4 Light and Optics
Light travels very fast and in a straight line.
  1. True
  2. False
Grade 4 Light and Optics
                occurs when light is sucked up by an object.
  1. refraction
  2. reflection
  3. absorption
  4. opaque
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