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1. What does travelling through a vacuum mean?
- Through relative dimensions
- Through custard
- Through space
- Through time
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Other questions in this quiz
2. Which spectrum are IR waves part of?
- Visible light
- Electromagnetic
- Electronic
- Electrostatic
3. How do we get IR from the sun?
- Through a vacuum
- Through air
- Through plants
- Through light energy
4. How many objects emit (give off) infrared radiation?
- Hot ones
- All
- Some
- Ones that glow in the dark
5. The hotter an object is, the _____ IR it gives off in a given time
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