Energy of waves

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25 Terms

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Wave

Any disturbance in a solid liquid or gas that transmits energy

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Waves can do work, but they only transfer

Energy not matter

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Electromagnetic waves

Can travel through a vacuum or empty space

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Transfer waves

Particles in the wave vibrate up and down

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Crest

Highest point of a transverse wave

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Trough

Lowest point of a transverse wave

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Longitudinal waves

Particles in the wave vibrate, back-and-forth or side to side

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Compression

Where the particles in a longitude wave are crowded together

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Rare fraction

Where the particles in the longitudinal wave are spread apart

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Amplitude

The height of the wave

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Frequency

The number of waves that pass in a given amount of time

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Speed

How fast the wave travels through a medium

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Wavelength

The distance from one point on a wave to the identical point on the next wave

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wave interactions

Reflection bouncing off and rafraction bending

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Two categories of light waves

Transfers and electromagnetic

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Two categories of sound waves

Longitudinal and mechanical

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Sound is caused by

Vibrations, rapid back-and-forth motions

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Sound travels quickest through which type of

Media solid because molecules are closer together and Temperature warmer because molecules move faster

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Pitch

How high or low a sound is pitch depends on the waves frequency

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Loudness

How soft or loud a sound is also referred to as volume

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Sound is measured in

Decibels

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Refraction

The bending of light waves through different media

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Reflection

When the light or sound waves bounce off an object

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Echo

A reflected sound wave a sound echoes off a smooth and hard surface

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Empty space is called a

Vacuum