Calculating Period of Wave - 12/02/21 Friday

Last updated almost 5 years ago
57 questions
Do Now
1

What is the formula for calculating wave speed?

1

What is the formula for calculating frequency?

1

What is the formula for calculating wavelength?

1

Define the term “accurate”

1

Calculate the wavelength of a wave with a frequency of 3000 Hz and a wave speed of 300,000 m/s

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Challenge: Explain the difference between a transverse and a longitudinal wave. (3 marks)

New Information
Watch the video below, and write down three key points and any other notes in the space provided.
1

Copy-paste the following into the answer box, and write three key points and any other notes from the video above.
Key Points

Other notes

Check for understanding:
1

Define period of a wave

1

State the equation to calculate period of a wave

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State the equation to calculate frequency of a wave

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State the units for frequency

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State the units for period of a wave

Key Knowledge
LCWC Round 1
1

Define period.

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Describe how frequency and period are related

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Give the formula for period.

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Rearrange the formula to give frequency.

LCWC Round 2
1

Give the formula for period.

1

Define period.

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Describe how frequency and period are related.

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Rearrange the formula to give frequency.

Recall Quiz
Answer the multiple choice questions before moving on.
1

Which of the following definitions matches the term ‘period’?

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Which of the following are the units for period?

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Which of the following is equivalent to a period of 3 minutes?

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Which letter represents period?

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Four different waves are shown. Which has the longest period?


We do:

When your answers to the we do have been marked green, you can move onto the you do.

Question:
Calculate the frequency of a wave with a period of 1 minute.
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Step 1: Write the formula for calculating frequency.

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Step 2: Convert the units

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Step 3: Enter values from question into formula. Solve the equation and write the answer with units.

You do:

Answer the following questions.

Check carefully to see which equation you need to use for each question. You may be asked to calculate the period, the frequency, the wave speed or the wavelength.
1

Calculate the time period of a wave with a frequency of 10 Hz.

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A wave has wavelength, 1 m and frequency, 100 Hz. Calculate wave speed.

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A wave has a frequency of 100 Hz. Calculate the time period

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What is the speed of a wave with a wavelength of 0.05 m and a frequency of 2000 Hz?

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Calculate the frequency of a wave with a time period of 0.1 s

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A wave has a wavelength of 0.1 m and a frequency of 200 Hz. Calculate the wave speed.

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What is the frequency of a wave with a time period of 0.01 s?

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What is the speed of a wave with a wavelength of 2000 m and a frequency of 0.05 Hz?

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What is the frequency of a wave with a speed of 200 m/s and a wavelength of 2 m?

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What is the frequency of a wave with a wavelength of 0.03 m and a speed of 18 m/s?

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A wave has a frequency of 1000 Hz and a speed of 100 m/s. Calculate the wavelength and the time period.

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A wave has a frequency of 5 000 Hz. Calculate the time period.

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What is the speed of a wave with a wavelength of 2 m and a frequency of 100 Hz?

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What is the wavelength of a wave with a speed of 18 m/s and a frequency of 600 Hz?

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A wave has a speed of 100 m/s and a wavelength of 0.1 m. Calculate the frequency.

Challenge questions:
1

A wave has a speed of 300 000 000 m/s and a wavelength of 6000 m. Calculate the frequency and the time period.

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A wave has a time period of 0.1 s and a wavelength of 3 m. Calculate the frequency and the wave speed.

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A wave has a time period of 1 ms. Calculate the frequency.

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A wave has a wavelength of 4 cm and a speed of 4 m/s. Calculate the frequency.

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A wave has a frequency of 1 kHz. Calculate the time period.

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A wave has a speed of 30 m/s and a frequency of 10 Hz. Calculate the wavelength and the time period.

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A wave has a frequency of 1000 Hz. Calculate the time period and convert it to milliseconds.

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A wave has a wavelength of 8 cm and a frequency of 200 Hz. Calculate the wave speed.

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A wave has a wavelength of 1 cm and a frequency of 300 MHz. Calculate the wave speed.

Plenary:
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As period increases, frequency decreases.

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As frequency increases, period increases.

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As period increases, wavelength increases.

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1.As period decreases, amplitude increases.

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As period decreases, wave speed decreases