Crest- highest point of the wave

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Trough- lowest point of the wave​

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Crests and Troughs

• Wavelength refers to the length of a wave from one peak to the next.

• Amplitude refers to the height of a wave as measured from the highest point on the wave (peak or crest) to the lowest point on the wave (trough).

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Wavelength and Amplitude

Wave frequency is the number of waves that pass a fixed point in a given amount of time.

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Frequency

• Frequency and wavelength are inversely proportional to each other.

• The wave with the greatest frequency has the shortest wavelength.

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Frequency and Wavelength

• A higher-frequency wave has more energy than a lower-frequency wave with the same amplitude.

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Wavelength, Frequency and Energy

• electromagnetic spectrum is simply the full range of wave frequencies that characterizes solar radiation.

• divided into the following sections: radio, microwave, infrared, visible, ultraviolet, x-ray, and gamma ray (from longest to shortest wavelengths)

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EM WAVES