WONDER #1932: How Does a Remote Control Work?

Question 1 of 3

In remote control terms, IR stands for what?

1. indirect radio
2. infrared
3. inside remote
4. instant reception

Question 2 of 3

Infrared remote controls use what to carry signals between the remote control and the device it controls?

1. radio waves
2. sound
3. light
4. cheese

Question 3 of 3

The greatest advantage of radio-frequency remote controls is their what?

1. range
2. smell
3. color
4. temperature

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