Science 8 Mini-Light Quiz (2012-2013)

  1. The figure below represents how light can travel. This diagram best represents:
  2. Light scattering through diffusion.
  3. Light being refracted.
  4. Light being absorbed.
  5. Light being reflected.
  1. Which material would reflect or absorb all of the light that strikes it?
  2. Car windshield
  3. Kleenex tissue
  4. Plastic water bottle
  5. Science lab table
  1. Choose two of the following which are translucent:
  2. Air
  3. Wax paper
  4. Clear Saran wrap
  5. Thin curtains
  1. Which of the following are transparent?
  2. Clear glass
  3. Wood
  4. Skin of an onion
  5. Wax paper
  1. What happens when light hits a smooth surface such as a the white board?
  2. Diffuse reflection
  3. Regular reflection
  4. Refraction
  5. Diffraction
  1. What happens when light hits a rough, bumpy surface like carpet?
  2. Refraction
  3. Regular reflection
  4. Diffuse reflection
  5. Diffraction
  1. Light waves travel the slowest through:
  2. The medium does not affect the speed of a light wave.
  3. Gases
  4. Liquids
  5. Solids

The diagram below represents how light travels according to the Law of Reflection.

  1. The Law of Reflection states that the Angle of Reflection will always be
  2. unknown. There is no relationship between these angles.
  3. equal to the Angle of Incidence.
  4. smaller than the Angle of Incidence.
  5. greater than the Angle of Incidence.
  1. What does letter “C” represent?
  2. Plane Mirror
  3. Normal
  4. Angle of Incidence
  5. Reflected ray
  6. What does letter “B” represent?
  7. The Angle of Reflection
  8. Normal
  9. Reflected ray
  10. Incident ray
  1. A laser beam is pointing at a mirror with an Angle of Incidence measuring 70°. What is the Angle of Reflection?
  2. 70°
  3. 7°
  4. 35°
  5. The angle cannot be measured.
  1. When a straw is placed in a beaker of water, the straw appears broken at the surface of the water. This is because the light
  2. does not change speed.
  3. stops immediately when it hits the water.
  4. speeds up as it moves from water into air.
  5. slows down as it moves from water into air.
  1. Which property of light is being demonstrated by the straw in the beaker of water?
  2. Refraction
  3. Transmission
  4. Reflection
  5. Absorption

The diagram below illustrates the electromagnetic spectrum. Use this diagram to answer questions:

  1. The electromagnetic spectrum is made up of bands of waves with different
  2. speeds.
  3. frequencies.
  4. reflections.
  5. mediums.
  1. The electromagnetic waves with the lowest frequencies and the longest wavelength are called
  2. radio waves.
  3. gamma rays.
  4. X-rays.
  5. visible light.
  1. Visible light has a lower frequency than
  2. microwaves.
  3. ultraviolet rays.
  4. infrared rays.
  5. radio waves.
  1. What kinds of waves do tanning beds use to tan people’s skin?
  2. Gamma rays
  3. Radio waves
  4. Ultraviolet rays
  5. Visible light
  1. True / False. Electromagnetic waves require a medium in order to travel.
  1. True / False. All electromagnetic waves travel at different speeds in a vacuum.
  1. True / False. The only part of the electromagnetic spectrum that humans can see with only their eyes is visible light.

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