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Fourth Grade (Grade 4) Light and Optics Questions

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Grade 4 Light and Optics
This refers to the physical property of materials that allows light to pass through so that whatever is behind can be seen.
  1. Transparent
  2. Translucent
  3. Opaque
Grade 4 Light and Optics
This refers to the physical property of materials that allows light to pass through, but scatters it so that whatever is behind it cannot be clearly seen.
  1. Transparent
  2. Translucent
  3. Opaque
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
What is white light?
  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
The light we see with our eyes is called                .
  1. sunlight
  2. moonlight
  3. infrared light
  4. visible light
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
The rainbow of colors is called the                .
  1. hues
  2. spectrum
  3. prism
  4. reflection
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
Scientists refer to sunlight as                .
  1. rainbow
  2. black light
  3. purple light
  4. white light
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
Light travels very fast and in a straight line.
  1. True
  2. False
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
                means the light is taken in by the object.
  1. Reflected
  2. Transmitted
  3. Absorbed
  4. Refracted
Grade 4 Light and Optics
Light always travels in a                 line.
  1. straight
  2. curvy
  3. oval
  4. square
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
When light hits an UNEVEN surface it
  1. is absorbed by the surface.
  2. reflects light in one direction.
  3. reflects light in many different directions.
Grade 4 Light and Optics
Light moves slowly in air.
  1. True
  2. False
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
Which term describes light bouncing off an object?
  1. refraction
  2. reflection
  3. translucent
  4. transformation
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
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