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3.3
| Question | Answer |
|---|---|
| all waves begin with a source of ______ that causes a back and forth or up and down disturbance, or movement. | energy |
| a _____ is a disturbance that transfer energy from one place to another. | wave |
| a flag ripples back and forth as the energy _______ along the flag. | travels |
| a ____________ wave travels only through matter. | mechanical |
| a ________________ wave can travel through empty space. | electromagnetic |
| there are ______ types of wave motions. | 3 |
| a _________ wave in which the disturbance is perpendicular. | transverse |
| a _________ wave is a wave that makes the particles of a medium move back and forth. | longitiudinal |
| two common waves in nature are water waves and ________ waves . | seismic |
| in water waves, water particles move in _______. | circles |
| these waves are a combination of __________ and longitudinal waves. | transverse |
| _________ waves occur during an earthquake. | seismic |
| the __________ of a wave is the distance from one point. | wavelength |
| corresponding point on the next ______. | wave |
| the ____________ of a wave is the number of wavelength. | frequency |
| Frequency is measured in ______. | hertz |
| the _______ the wavelength, the lower the frequency. | longer |
| wave speed depends on the type of material, or _________ a wave travels through. | medium |
| the maximum distance a wave varies from it's rest position is the ____________ of the wave. | amprimude |
| the more energy a _____________ wave has, the larger the wave amplitude will be. | mechanical |
| when you knock on one side of a door, the sound travels as _____________ sound waves through the door. | longitude |
| these waves travel through the ________ that make up the door to the air particles on the other side. | matter |
| the particles that make up the door ________ some of the sound energy. | absorb |
| this causes a __________ in the sound | beflectior |
| some of the energy of your knock bounces, or ________, back onto the room. | reflects |