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Ch20Review
The Energy of Waves
| Question | Answer |
|---|---|
| In a ________, the particles vibrate parallel to the direction that the wave travels. | longitudiinal wave |
| Mechanical waves require a _________ through which to travel. | medium |
| Any ________ transmits energy through vibrations. | wave |
| In a ____________, the particles vibrate perpendicularly to the direction that the wave travels. | transverse wave |
| Name a kind of wave that does not require a medium. | electromagnetic wave |
| Name two waves interactions that can occur when a wave encounters a barrier. | reflection and diffraction |
| _____________ is the number of vibrations per second. | frequency |
| As frequency increases, the __________ of the wave also increases. | energy |
| _______________is the speed at which a wave travels. | wave speed |
| the distance between two corresponding points on consecutive waves is one | wave length |
| __________ happens when a wave passes from one medium to another at an angle. | refraction |
| The bending of a wave around a barrier is called ____________. | diffraction |
| We can see the moon because of the _________ of sunlight off it. | reflection |
| __________ is the combination of two or more waves that results in a single wave. | interference |
| ____________ is the maximum distance that the particles of a medium vibrate from their rest position | amplitude |
| Waves transfer _________. | energy |
| What results in more energy in a wave? | a smaller wavelength |
| Why can you hear two people talking even after they walk around a corner? |
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