Waves Final Exam Review

Which two statements are true about the wave shown?

• The wave is a longitudinal wave.

• The wave could be a sound wave.

• The wave is a transverse wave.

• The wave could be a light wave.

Tags

NGSS.HS-PS4-1

Which image represents a transverse mechanical wave?

• A

• B

• C

• D

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NGSS.HS-PS4-1

What is the period of a wave that has a frequency of 3 Hz?

• 0.3 s

• 3 s

• 30 s

• 300 s

Tags

NGSS.HS-PS4-1

Analyze the data to identify the mathematical relationship between the amplitude and energy of a mechanical wave. If mechanical wave A has an amplitude of 1 cm and mechanical wave B has an amplitude of 2 cm, what will be the relationship between the energy carried by the two waves?

• The amount of energy in wave B is four times the amount of energy in wave A.

• The amount of energy in wave A is four times the amount of energy in wave B.

• The amount of energy in wave B is half the amount of energy in wave A.

• The amount of energy in wave A is half the amount of energy in wave B.

Based on the data in the table, what will happen when a sound wave travels from aluminum into copper?

• The wave will slow down.

• The wave will speed up.

• The wave will get completely absorbed.

• The wave will change in frequency.

Tags

NGSS.MS-PS4-2

A sound wave with a wavelength of 0.82 m passes through air, and then it passes through a glass window, where its wavelength changes to 13 m. If the sound wave has a constant frequency of 440 Hz, what is its approximate speed as it passes through the glass? (The equation for wave speed is v = f × λ.)

• 5700 m/s

• 570 m/s

• 350 m/s

• 3500 m/s

Tags

NGSS.HS-PS4-1

A student rings a brass bell with a frequency of 100 Hz. The sound wave travels through brass, air, and glass. What is the wavelength of the wave in brass?

• 47 m

• 4.7 m

• 0.021 m

• 0.21 m

Tags

NGSS.HS-PS4-1

Two waves combine with destructive interference. What must be true of the combined wave that forms?

• It has a lower amplitude than that of the original waves.

• It has a higher amplitude than that of the original waves.

• It has a higher frequency than that of the original waves.

• It has a lower frequency than that of the original waves.

You are designing a new home for a cold climate. You want one room in the house to be warmed by the Sun's energy. Which material would be best to use for transmitting visible light into the room?

• glass

• concrete

• brick

• wood

Tags

NGSS.MS-PS4-2

As an electromagnetic wave travels, what is the relationship between the magnetic field and the electric field along its path?

• They are at a 90° angle to each other.

• They are parallel to each other.

• The angle between them increases with an increase in energy.

• The angle between them decreases with an increase in energy

Tags

NGSS.HS-PS4-3