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20 Cards in this Set
- Front
- Back
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Electromagnetic waves |
Waves that do not require matter to carry energy. |
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Transverse wave |
Matter moves back and forth at right angles to direction the wave travels. |
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Compressional wave |
Matter in the medium moves forward and backward in the same direction the wave travels. |
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Give one example of a transverse wave and one example of a compressional wake. |
Answer will very. |
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Why can't a sound wave travel from a satellite to Earth? |
It requires a medium. |
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Is light a mechanical wave or an electromagnetic wave? A transverse wave or a compressional wave ? |
An electromagnetic wave; a transverse wave. |
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Amplitude |
Of a transverse wave is one-half the distance between a crest and a trough. |
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Wavelength |
Is the distance between a point on the next wave. |
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Frequency |
Of a wave is the number of waves that pass a given point in 1s. |
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Why is the segment "The speed go light is 300 million m/s" not all ways correct? |
The speed of light varies. |
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How does the frequency of a wave change as its wavelength changes? |
The frequency increases as the wavelength decreases. |
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In what part of a compressional wave are particles spaced farthest apart? |
A rarefaction |
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Why is a sound wave with a large amplitude more likely to damage your hearing than one with a small amplitude? |
Waves with large amplitudes carry more energy then waves with small amplitudes. |
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Reflection |
occurs when a wave strikes an object or surface and bounces off. |
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refraction |
The bending of a wave as it moves from one medium into another. |
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diffraction |
is the bending of waves around a barrier. |
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interference |
the ability of two or more waves to combine and form a new wave. |
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white objects reflect light. Why don't you see your reflection when you look at a building made of rough, white stone? |
rough white stones skaters light in all directions. |
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if your standing on one side of a building how are you able to hear the siren of a ambulance on the other side of the building? |
sounds diffracts easily around objects such as buildings. |
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what behavior of light enables magnifying classes and contact lenses to bend light rays to help people see more clearly? |
light refraction |
