Questions 3.2

Question	Answer
What two properties of EM waves change from one end of the EM spectrum to the other?	The two properties of EM waves that change from one end of the EM spectrum to the other are frequency and wavelength.
Describe two uses for microwave radiation.	Two uses for microwave radiation are cell phones, and radar.
Why do you think remote controls for tvs, vcrs, and stereos use infrared light rather than ultraviolet light?	?
For a camera to make visible images of heat escaping from a building in winter, what type of EM wave would it need to photograph?	It would need infrared light.
When a person in a car is talking on a cell phone, and the car moves from one cell to another, the conversation continues without interruption. How might this be possible?	?

Resource summary

	Created by zahruzuby about 11 years ago