Frequency and Wavelength Flashcard

Front

What is the formula to calculate wavelength?

Back

Wavelength (λ) = Speed of Wave (v) / Frequency (f)

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Front

What is frequency?

Back

Frequency is the number of occurrences of a repeating event per unit of time, measured in Hertz (Hz).

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Front

How do you convert frequency in Hz to period in seconds?

Back

Period (T) = 1 / Frequency (f) in Hz.

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Front

What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 300,000 km/s.

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Front

If a wave has a frequency of 600 THz, what is its wavelength?

Back

Wavelength = Speed of Light / Frequency = 300,000 km/s / 600 THz = 500 nm.

Tags

NGSS.HS-PS4-1

Front

How do you calculate the frequency of a metronome that ticks 90 times in 60 seconds?

Back

Frequency = Number of ticks / Time in seconds = 90 ticks / 60 s = 1.5 Hz.

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Front

What is the frequency of a pendulum that swings 15 times in 12 seconds?

Back

Frequency = 15 swings / 12 s = 1.25 Hz.

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Front

How do you find the frequency of a hummingbird that flaps its wings 80 times in 10 seconds?

Back

Frequency = 80 flaps / 10 s = 8 Hz.

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NGSS.MS-PS4-1

Front

What is the relationship between frequency and wavelength?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.

Tags

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Front

If a guitar string vibrates at 220 Hz, what is its wavelength if the speed of the wave is 330 m/s?

Back

Wavelength = Speed of Wave / Frequency = 330 m/s / 220 Hz = 1.5 m.

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