Introduction to Waves

What property of this wave is represented by the letter “A”?

• Amplitude.

• Crest.

• Trough.

• Wavelength

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What property of the wave is represented by the letter "B"?

• Amplitude.

• Crest.

• trough.

• Wavelength.

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The highest point on a wave is:

• The crest.

• The trough.

• The top.

• The coast.

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The number of wavelengths that pass a point each per second is:

• Frequency.

• Period.

• Longitudinal.

• Transverse wave

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The type of waves that require medium to pass:

• Mechanical waves.

• Electromagnetic waves.

When the frequency of a wave increases, what happens to the wavelength?

• The wavelength is not directly affected by the frequency of a wave.

• The wavelength increases.

• The wavelength decreases.

• More specific information is needed to form a conclusion about the wavelength.

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Which wave in the diagram has the greatest frequency?

• 1

• 2

• 3

• 4

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When a wave strikes and objects and bounces off. (Example echo)

• Medium.

• Refraction.

• Reflection.

• Interference.

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A sound wave propagating in air with the speed of 340m/s, the frequency of the wave is 200 Hz. the wavelength of this wave is ……..

• 1.7m

• 17m

• 0.59m

• 6800m

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In water, the speed of propagation of an electromagnetic wave is:

• 450000Km/s

• 300000Km/s

• 225000Km/s

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