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19 Cards in this Set
- Front
- Back
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Water waves can move a piece of cork floating on top of the water only in an up and down motion. True or False?
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True.
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Mechanical waves can travel in any type of medium. True or False?
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False. Only Electromagnetic waves.
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Radio waves are the only type of electromagnetic wave that is a transverse wave. True or False?
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True.
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Sound waves are compressional waves. True or False?
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False. Sound is a trasverse wave.
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amplitude of a wave is the distance of a point on one wave and the identical point on the next wave. True or False?
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True.
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In general, the more energy a wave has the greater the amplitude. True or False?
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True. The greater the energy, the greater the amplitude.
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The speed of light depends on the medium it travels through.
True or False? |
True, the speed of light in rarer medium is greater than that in denser medium. In media with refractive index greater than 1 (like glass, water etc.), the speed of light decrease by that factor. |
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Refraction occurs when the amplitude of a wave changes as it goes from one medium to another. True or Flase?
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True.
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You can hear sounds around the coner because of the property called diffration. True or False?
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TRUE!!!
Yes, you can. Sound, which is mechanical energy, travels through air around corners. There is a "sonic shadow" cast by the structure or whatever it is that is making the corner, and the amount of sound energy that gets around the corner is lower than "not around the corner" as it were. By the fact that the listener is not in a direct line with the source, not as much sound energy arrives at the ear. But you can hear things around a corner, depending on the circumstances. It's a simple matter to conduct an experiment by standing in a recessed entry way and listening to sounds and then "sticking your head out" to sample the direct energy. |
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Tsunamis have a large amount of energy because of their large...
a. wavelength b. amplitude c. frequency d. diffraction |
b. amplitude
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Which one of the following determines the color of a light wave?
a. amplitude only b. wavelength and amlitude c. wavelength and frequency d. interference patterns |
i rock, as always!
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The speed of sound is about _____.
a. 340 m/s b. 2,000,000 m/s c. 3,000,000 m/s d. 3,000,000 m/hour |
idk!!!!
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When light bounces off a surface it is called ____.
a. reflection b. refraction c. diffraction d. interference |
hogmognogpogbogdogaogqogeogroggogtogyoguogiogogopogaogsogdogfoggoghogjogkoglog
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In which one of the following cases will refraction occurs?
a.reflection b. refraction c. differaction d. interference |
teoihgsketh[dohdspohpsoih
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The less dense area of a COMPRESIONAL wave is called a(n)________].
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rarefractions
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Sound travels faster in _______ than in liquids.
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Solids.
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Hertz cans be described as __________.
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Waves per SECOND.
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The echo of a sound wave when the sound wave is due as ______.
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Reverberation.
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When light slows down as it passes from air to water it bends towards the _______.
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iuyfrtrvvy
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