Echoes and superposition

This lesson looks at how different surfaces can have an effect on sound, what echoes are and how they can be useful and what can happen when waves interact with each other.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is sound caused by?

1/5

Q2.How does sound travel?

2/5

Q3.Which heating method transfers energy is a similar way to how energy is transferred when we hear something?

3/5

Q4.What is the distance between the centre line (or the still position) and the peak or the trough of one wave called?

4/5

Q5.What is the main difference between sound as a wave and light as a wave?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Intro quiz - Recap from previous lesson

Before we start this lesson, let’s see what you can remember from this topic. Here’s a quick quiz!

Q1.What is sound caused by?

1/5

Q2.How does sound travel?

2/5

Q3.Which heating method transfers energy is a similar way to how energy is transferred when we hear something?

3/5

Q4.What is the distance between the centre line (or the still position) and the peak or the trough of one wave called?

4/5

Q5.What is the main difference between sound as a wave and light as a wave?

5/5

Video

Click on the play button to start the video. If your teacher asks you to pause the video and look at the worksheet you should:

  • Click "Close Video"
  • Click "Next" to view the activity

Your video will re-appear on the next page, and will stay paused in the right place.

Worksheet

These slides will take you through some tasks for the lesson. If you need to re-play the video, click the ‘Resume Video’ icon. If you are asked to add answers to the slides, first download or print out the worksheet. Once you have finished all the tasks, click ‘Next’ below.

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Echoes and Superposition

This quiz will test your knowledge from this lesson and your prior learning.

Q1.What is an echo?

1/5

Q2.What is superposition?

2/5

Q3.Which part of a wave is the trough?

3/5

Q4.What happens to sound waves when they hit a rough surface?

4/5

Q5.Which of the following does not use echolocation?

5/5

This quiz includes images that don't have any alt text - please contact your teacher who should be able to help you with an audio description.

Quiz:

Echoes and Superposition

This quiz will test your knowledge from this lesson and your prior learning.

Q1.What is an echo?

1/5

Q2.What is superposition?

2/5

Q3.Which part of a wave is the trough?

3/5

Q4.What happens to sound waves when they hit a rough surface?

4/5

Q5.Which of the following does not use echolocation?

5/5

Lesson summary: Echoes and superposition

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Time to move!

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Move around:
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On the spot:
Dance

The next lesson in:
Sound waves
is:
Pitch and frequency

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