PSc.3.2.1

If the velocity of a sound wave remains constant and its frequency increases, which characteristic of the wave will decrease?

• amplitude

• wavelength

• energy

• speed

A wave has a frequency of 4.0 Hz. If it is traveling at a velocity of 20 m/s, what is the wavelength of the wave?

• 80 m

• 16 m

• 5.0 m

• 0.2 m

If a wave has a frequency of 0.4 Hz and a wavelength of 15 m, what is its velocity?

• 0.2 m/s

• 6.0 m/s

• 38 m/s

• 60 m/s

What is the frequency of ultraviolet radiation with a wavelength of 3.65 X10^-8 m? (c = 3.00 X 10⁸ m/s)

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What is the frequency of a radio wave with a wavelength of 6.00 x 10^-1 m?

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Different types of atoms or molecules emit unique patterns of light. Astronomers can classify objects in the universe by identifying gases in the object. A spectral line at 115 gigahertz identifies carbon monoxide (CO). What characteristic does this measure on the light spectrum?

• amplitude

• frequency

• ohms

• wavelength

As wave frequency is increased, wave energy

• stays constant.

• is unaffected.

• increases.

• decreases.

What is the speed of a 2-Hz wave that has a wavelength of 10 m?

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The visible colors listed from shortest to longest wavelength are violet, blue, green, yellow, orange, and red. Which of the following accurately compares the frequency of these colors using this information?

• Blue has a higher frequency than violet.

• Blue has a higher frequency than green.

• Orange has a lower frequency than red.

• Violet has a lower frequency than yellow.

As Wave 1 moves to the right, what will the boat do?

• move up and to the left

• move up and then down

• move to the top of the wave and stay there

• move to the right and stay in front of the wave