Practice Introduction To Light (6.1) - Light

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9 questions

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6 sample questions

Question 1.
What is light?
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Think about what allows us to observe the world around us.
Question 2.
What is the speed of light in a vacuum?
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Remember the number of kilometers is very high!
3Question 3.
What is the speed of light in a vacuum?
- 3 x 10^8 m/s
- 3 x 10^6 m/s
- 3 x 10^9 m/s
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Think of the fastest thing you can imagine!
4Question 4.
Light travels in straight lines.
- True
- False
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Consider how a laser pointer works in a straight line.
Question 5.
If light travels from the Sun to the Earth, calculating the time it takes for light to cover the distance of 150 million kilometers.
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Convert kilometers to meters!
Question 6.
Discuss how the speed of light would be affected if it were traveling through different mediums like air, water, and glass.
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Consider how waves move differently in shallow versus deep water.

5 more questions in this section. Enroll free to practise them all.