Let’s go step by step to solve the questions on the “Sound Waves” worksheet.
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Question 1: What is the name of this type of wave?
Looking at the diagram, it shows particles being pushed together and then spread apart as the wave moves. This is how sound travels — through compressions (particles close together) and rarefactions (particles far apart).
This kind of wave is called a
longitudinal wave.
✔ Answer: Longitudinal wave
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Question 2: Describe what is happening at the part of the wave labelled ‘area of compression’.
In the area of compression, the particles are squeezed tightly together. That means they’re closer than normal. This happens when the vibrating object pushes forward, forcing nearby particles to bunch up.
✔ Answer: The particles are pushed close together in this region.
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Question 3: For each statement below, tick either true or false.
Let’s go one by one:
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Sound can travel in a vacuum (without particles) → FALSE
Sound needs particles to bump into each other to move. In a vacuum, there are no particles, so sound cannot travel.
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Sound can be reflected → TRUE
Yes! Echoes are an example of sound bouncing off walls or mountains.
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Sound can be absorbed → TRUE
Soft materials like carpets or curtains soak up sound energy — that’s why rooms with them feel quieter.
✔ Answers:
- Sound can travel in a vacuum → False
- Sound can be reflected → True
- Sound can be absorbed → True
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Final Answer:
1. Longitudinal wave
2. The particles are pushed close together in this region.
3.
- Sound can travel in a vacuum → False
- Sound can be reflected → True
- Sound can be absorbed → True
Parent Tip: Review the logic above to help your child master the concept of sound waves worksheet middle school.
