1. Slide
60 seconds
2. Word cloud
120 seconds
What is sound? (Answer with a few words)
3. Slide
60 seconds
Sound is a type of energy that travels in waves through air, water, or solids. When a sound wave hits an object, it can be reflected, absorbed, or transmitted. Reflection occurs when a sound wave bounces off a surface and returns to its original direction.
Sound Waves
4. Slide
60 seconds
Sound Waves: A wave of energy which is created when a vibrating object moves through a medium such as air or water. Transmission of Sound: The process by which sound moves from one point to another. Reflection and Absorption of Sound: Reflection is when sound bounces off of a surface, and absorption is when sound is absorbed by a surface.
Concepts:
5. Poll
60 seconds
Do sound waves travel faster in air, water or steel?
- Air
- Water
- Steel
6. Slide
60 seconds
Sound waves can travel through solids, liquids, and gases. They travel fastest and with the least resistance through solids. Reflection of sound waves can be used to measure the distance between two objects. This method is called echolocation. Sound waves can be absorbed by materials such as cloth, foam, and fiberglass to reduce noise pollution.
Did you know?
7. Open question
300 seconds
How are sound waves transmitted? What are the different mediums that sound can travel through?
8. Slide
60 seconds
In the first video, it talked about a Ruben's Tube. Now you will watch a video showing this in action! ENJOY!
9. Slide
60 seconds
10. Open question
300 seconds
What is the difference between reflection and absorption of sound? Give examples of each.
11. Personalised Feedback
360 seconds
How does the reflection and absorption of sound impact the quality of music in a concert hall?
12. Open question
300 seconds
How does the frequency of sound waves affect the way we hear them?
13. Open question
300 seconds
What are some applications of using sound waves to transfer energy?
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