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30 March, 13:32

What are examples of devices that use electromagnetic waves? Check all that apply.

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  1. 30 March, 16:50
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    Well, there aren't actually ANY that apply, because you haven't listed any. But I've lived a long time, and I remember hearing about electromagnetic waves and things that use them, so I can list a FEW of them for you:

    - - radios

    - - TVs

    - - garage-door openers

    - - TV remotes

    - - cell phones

    - - smart phones

    - - GPS

    - - walkie-talkies

    - - car headlights

    - - lava lamps

    - - toasters

    - - LEDs

    - - light bulbs

    - - fluorescent light tubes

    - - police radios

    - - Doppler weather radars

    - - CB radios

    - - ham radios

    - - neon signs

    - - eyeglasses

    - - microscopes

    - - telescopes

    - - gas stoves

    - - electric stoves

    - - wood stoves

    - - microwave ovens

    - - tanning beds

    - - cameras

    - - lasers

    - - CD recorders and players

    - - DVD recorders and players

    - - Bluray recorders and players

    - - movie cameras

    - - movie projectors

    - - reading lamps

    - - candles

    - - whale-oil lamps

    - - kerosene lanterns

    - - flashlights

    - - campfires

    - - coffee percolators

    - - heat lamps

    - - cordless phones

    These are just the ones I can think of right now off the top of my head. There are a lot of others.
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