Light Quiz
11 Questions
| Attempts: 3119
Questions and Answers
- 1.What is our main source of light?
- A.
Sun
- B.
Fire
- C.
Light
- D.
Candles
- 2.What artificial light was created thousands of years ago?
- A.
Fire
- B.
Candles
- C.
Light globes
- D.
LEDs
- 3.The thin wire contained within a light globe is called a 'filament'?
- A.
True
- B.
False
- 4.______________ are formed when an obstacle blocks the passage of light.
- 5.What is light a form of?
- A.
Sound
- B.
Light
- C.
Fire
- D.
Energy
- 6.A sharp, clear and complete shadow is called an umbra.
- A.
True
- B.
False
- 7.What do you call the distant between one crest of the wave to the crest of the next?
- A.
Frequency
- B.
Wavelength
- C.
Penumbra
- D.
Refraction
- 8.A penumbra shadow is clear and sharp.
- A.
True
- B.
False
- 9.Select the sources of artificial light.
- A.
Light globe
- B.
Streetlight
- C.
Sun
- D.
Candle
- E.
Fire
- F.
Laser
- G.
Camera
- 10.Select the sources of natural light.
- A.
Sun
- B.
Fire
- C.
Candles
- D.
Stars
- E.
Moon
- F.
Ice cube
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