81768
| Questão | Responda |
| 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? | ? |
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