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Topic 3-2
Waves and Information
| Question | Answer |
|---|---|
| receiver | the part of a device that changes radio waves into a useable message |
| reflect | to bounce off an object |
| refract | to bend when passing through an object |
| signal | a message |
| superposition | waves meeting and combining amplitudes as theymove |
| system | a group of parts that work together to complete a task |
| transfer | to move from one object to another |
| transmitter | the part of a device that sends radio signals |
| transverse wave | a wave that moves and carries energy perpendicular to the particles it travels through |
| trough | the bottom part of a transverse wave |
| wave | a disturbance that travels in a pattern and carries energy |
| wave period | the time it takes a wave to move one wavelength |
| wavelength | the distance between similar points on a wave |