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3.3
33
| Question | Answer |
|---|---|
| all waves begin with______. | energy |
| a _____ is a disturbance that transfers energy form one place to another. | wave |
| matter_________ transferred as a wave moves. | is not |
| when a flag moves in the wind, the flag ripples back and forth as the energy _____. | travles |
| a ________ wave travels only through matter. | mechanical |
| an ___________ wave can travel through empty space or through matter. | electromagnet |
| there are ____ types of wave motion-transverse. | three |
| a _________ wave is a wave in which the disturbance is perpendicular to the direction the wave travels | tranverse |
| a________wave is a wave that makes the particles of a medium move back and forth parallel to the direction the wave travels | longitudinal |
| two common waves in nature are water waves and ______ waves | seismic |
| in water waves water particles move in_____ | circles |
| the _____ of a wave is the distance from one point, such as the crest | wavelenght |
| the _______of a wave is the number of wavelengths that pass a point each second | frequency |
| frequency is measured in ____ | hertz |
| wave speed depends on the type of material or ______ a wave travels to | medium |
| the maximum distance a wave varies from its rest position is the_________ of the wave | amplitude |
| when you knock on one side of a door the sound travels as ________sound waves through the door | longitudinal |
| these waves travel through the ______ | energy |
| the particles that make up the door ______ some of the sound energy | absorb |
| some of the energy of your knock bounces or _____ back into the room | reflects |
| waves that bounce off a surface follow the law of _______ | reflection |
| _____________ is the change in direction of a wave as it changes speed moving from one medium into another | refraction |
| the change in direction of a ___ | wave |
| when it travels past the edge of an object or through an opening is called __________ | diffraction |