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- 1. Multiple Choice
Which of the following is an artificial light source?
- 2. Multiple Choice
How does a light bulb work?
A wick inside the bulb is burned.
An electric current is passed through a filament.
White light is passed through a prism.
Ambient light is reflected by a small mirror.
- 3. Multiple Choice
What can you infer about the environment the anglerfish lives in?
It must be extremely bright.
It must be extremely dark.
It must be filled with other fish.
It must be empty of other fish.
- 4. Multiple Choice
What device produces light by running an electric current through a gas?
An incandescent light bulb
A flashlight
A neon sign
A prism
- 5. Multiple Choice
What could you use to split white light into its component colors?
A flashlight
A capacitor
A light bulb
A prism
- 6. Multiple Choice
Why does refraction occur?
Light travels through different materials at different speeds.
Different colors of light travel at different speeds.
Different materials physically twist light around.
Light from different sources travels at different rates.
- 7. Multiple Choice
Only a minute portion of the electromagnetic spectrum can be seen with the human eye. In this context, what does "minute" mean?
Colorful
Large
60 seconds
Small
- 8. Multiple Choice
When you look at your teacher's face, how can you see it?
Light reflects off of his or her face.
His or her face emits light.
Light refracts through his or her face.
His or her face emits electromagnetic radiation.
- 9. Multiple Choice
Light can behave as both a ___________ and a ____________.
Ray; beam
Wave; particle (photon)
Natural source; unnatural source
Refraction; reflection
- 10. Multiple Choice
Why does the light we see from stars take thousands of years to reach us?
Because the light is slowed down by gases in outer space
Because the light is reflected off of other stars
Because the stars are very far away
Because light travels very slowly
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