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The objective of this lesson is to understand concepts related to sound and light waves, including absorption, insulation, and the properties of materials.
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The ocean appears blue because water absorbs colors in the red spectrum and reflects blue light.
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Materials such as fiberglass, foam, and heavy curtains are effective sound insulators.
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To make a soundproof room, you should use materials that absorb sound rather than reflect it.
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Absorption is the process by which a material takes in energy from waves, thereby reducing or eliminating the energy's reflection or transmission.
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Black clothes feel warmer than white clothes because they absorb more sunlight and convert it into heat.
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Sunscreen works by absorbing and reflecting harmful ultraviolet (UV) rays, helping protect the skin from damage related to wave absorption.
1 sentence each
What is the objective of this lesson?
Why does the ocean look blue?
What kinds of materials make good sound insulators?
If you want to make a soundproof room, should you use materials that absorb sound or reflect sound?
Define absorption-
Answer Check-In Question #2 on page 6- Why do black clothes feel warmer than white clothes?
Answer Practice Question #1 on page 7- Explain how sunscreen works, and how it relates to wave absorption.
1 answer