PS 4-1 Review

When a rope is moved up and down between two people, a wave is formed. The up and down movement of the rope from person to person is most likely used to model how energy is

• always conserved.

• converted by gravity.

• lost to the environment.

• transferred through a medium.

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NGSS.MS-PS4-1

NGSS.MS-PS4-2

This illustration shows a sound wave traveling from a tuning fork through a medium. How can the wavelength be determined?

• by comparing the width of the bands at X and at Y

• by comparing the number of particles at X and at Y

• by measuring the distance between two points labeled X

• by measuring the distance between a point labeled X and a point labeled Y

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NGSS.MS-PS4-1

This illustration shows three different waves traveling through the same medium. How do the waves differ from one another?

• The waves travel at different speeds.

• The waves have different wavelengths.

• The waves carry different amounts of energy.

• The waves are a different distance from the source.

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NGSS.MS-PS4-1

The diagram below shows a student forming waves using a rope. Which statement best describes what happens to the wavelength and amplitude of the wave when the student increases the upward and downward force?

• The amplitude increases, but the wavelength decreases.

• The amplitude increases, but the wavelength stays the same.

• The amplitude decreases, but the wavelength increases.

• The amplitude stays the same, but the wavelength increases.

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NGSS.MS-PS4-1

The charts below show sound waves from a musical instrument. In which way is the sound wave in Chart 1 different from the sound wave in Chart 2?

• it has a higher pitch

• it has a lower volume

• it has a greater amplitude

• it has a lower frequency

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NGSS.MS-PS4-1

A teacher draws two sound waves with different amplitudes on the board. Which statement best compares the two waves?

• The pitch of the sound decreased in Figure 2.

• The loudness of the sound decreased in Figure 2.

• The velocity of the sound increased in Figure 2.

• The wavelength of the sound increased in Figure 2.

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NGSS.MS-PS4-1

Use the two sound wave patterns from an oscilloscope to answer the question that follows. How does Wave 1 compare to Wave 2?

• Wave 1 is louder and higher pitched than Wave 2.

• Wave 1 is quieter and higher pitched than Wave 2.

• Wave 1 is louder and lower pitched than Wave 2.

• Wave 1 is quieter and lower pitched than Wave 2.

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NGSS.MS-PS4-1

Two waves have the following waveforms. Which conclusion can best be supported by the illustrations?

• Wave A has higher frequency.

• Wave A is an ultraviolet wave.

• Wave B has greater energy.

• Wave B is a visible light wave.

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NGSS.MS-PS4-1

Annabelle observes ocean waves approaching a beach. Ocean waves are mechanical waves and can be shown in a diagram. Which part of the diagram would represent the height of a wave that Annabelle observes?

• 1

• 2

• 3

• 4

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NGSS.MS-PS4-1

Robert is looking at the screen of an instrument that shows several waves. From point X to point Y, how many total wavelengths are represented?

• 1

• 2

• 3

• 4