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15 Cards in this Set
- Front
- Back
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Q
What is a wave? |
A
A disturbance (vibration) that transfers energy from place to place. The vibration IS the wave. |
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Q
What is energy? |
A
the ability to do work |
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Q
What is a medium? |
A
the material through which a wave travels |
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Q
What is a mechanical wave? |
A
A wave that requires a medium through which to travel |
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Q
What causes waves? |
A
Waves are created when a source of energy causes a medium to vibrate. |
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Q
What is a vibration? |
A
a repeated back-and-forth or up-and-down motion. |
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Q
What are the 3 types of waves? |
A
1. transverse waves 2. longitudinal waves 3. surface waves |
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Q
What are transverse waves? |
A
Waves that move the medium at right angles to the direction the waves are traveling. |
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Q
What are longitudinal waves? |
A
Waves that move the particles of the medium parallel to the direction the waves are traveling. |
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Q
Name 2 parts of a longitudinal wave. |
A
compressions and rarefactions |
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Q
In a longitudinal wave, what are the compressions? |
A
The parts where the medium particles are CLOSE together. (ex. the coils are close together) |
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Q
In a longitudinal wave, what are the rarefactions? |
A
The parts where the medium particles are spread out. (ex. the coils are spread out) |
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Q
What are surface waves? |
A
a combination of transverse and longitudinal waves. (ex. ocean waves) |
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Q
What are the highest parts of a transverse wave called? |
A
crests |
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Q
What are the lowest parts of a transverse wave called? |
A
troughs (trawfs) |
