Waves, Sound Em and Color Review

When scientists talk about white light, they areMOST likely referring to light that is

• a combination of all of the colors in the visible region of the electromagnetic spectrum.
• the unabsorbed refracted light produced by a black light.
• the narrow band corresponding to white light in the electromagnetic spectrum.
• a combination of all the types of electromagnetic radiation.
  

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Which color of light is produced when all of the colors of visible light in the electromagnetic spectrum are combined?

• gray
• white
• black

Which of the following statements BEST describes visible light?

• Light is an electromagnetic wave of a single frequency that makes up a small part of the electromagnetic spectrum.
• Light is an electromagnetic wave of a single frequency that makes up most of the electromagnetic spectrum.
• Light includes a range of electromagnetic waves that make up a small part of the electromagnetic spectrum.
• Light includes a range of electromagnetic waves that make up most of the electromagnetic spectrum.
  

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Visible light is which type of wave?

• seismic
• mechanical
• longitudinal
• electromagnetic

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Which of these describes a small range in the electromagnetic spectrum?

• gravity
• radiation
• electricity
• light

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How does light travel? 

• in longitudinal waves
• in transverse waves
• in a zig zag line
• back and forth

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Light waves need matter to travel.

• True
• False

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Why do we see objects as white?

• They absorb all light
• They reflect all light
• They absorb some light and reflect some light

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Which of the following electromagnetic waves has the lowest energy?

• gamma ray
• infrared wave
• visible light wave
• microwave

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Which of the following electromagnetic waves is given off as heat? 

• Radio Waves
• Infrared Rays
• Visible Light
• Gamma Rays

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