6830794
Description
Quiz by namitha md, updated more than 1 year ago
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Created by namitha md
over 7 years ago
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Question 1
Question
Intensity is how much energy arrives at a surface each second. True or false.
Answer
- True
- False
Question 2
Question
If the surface area increases, there are [blank_start]less[blank_end] photons hitting per square metre, they are [blank_start]more spread out[blank_end].
Answer
-
less
-
more
-
no
-
more spread out
-
closer together
Question 3
Question
What is electromagnetic radiation?
Answer
-
Electromagnetic radiation is the transfer of energy from one point to another.
-
Electromagnetic radiation is how much energy arrives at a surface each second.
Question 4
Question
Energy is transferred in something called [blank_start]photons[blank_end] (small packets of energy).
Answer
-
photons
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atoms
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molecules
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polymers
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