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4.1
| Question | Answer |
|---|---|
| all waves begin with a source of ____ | energy |
| a ____is a disturbance that transfers energy without transferring matter | wave |
| there are ____ types of motion | 3 |
| disturbance is perpendicular to the direction the wave travels | transverse wave |
| ____ waves occur during an earthquake | seismic |
| the distance from one point to the same point on another wave | wave length |
| number of wave lengths that pass a point each second | frequency |
| frequency is measured in ____ | Hertz |
| the ____ the wave length the lower the frequency | longer |
| wave speed depends on the ____ the wave travels through | medium |
| max distance a wave varies from its rest position | amplitude |
| these waves travel through the ____ that makes up the door | matter |
| particles that make up the door ____ some of the sound | absorb |
| some of the energy from the knock ____ off the door | reflects |
| waves that bounce off an object follow the law of ____ | reflection |
| change in direction of a wave as it changes speed | refraction |
| waves refract toward the medium if it ____ | slow down |
| wave refracts away from medium if it ____ | speeds up |
| sound waves spread around a corner due to ____ | diffraction |
| bounces back | reflects |
| ____ transfers energy without transferring matter | waves |
| wind ____ energy to the flag | transfers |
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barnechr6159
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