Questions and Answers
What happens when light hits a surface and bounces off of it?
It reflects
What type of lens makes an object look smaller?
Concave lens
What type of waves are used by cell phones for communication?
Radio waves
What is the process of soaking up or taking in light without reflecting it back?
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Which object allows some but not all light to pass through?
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In Morse code, which method can be used to transmit signals?
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How does a lens affect the light passing through it?
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Study Notes
Light and Optics
- When light hits a surface and bounces off, it is called reflection.
Lenses
- A concave lens makes an object look smaller.
Communication Waves
- Cell phones use radio waves for communication.
Light Absorption
- The process of soaking up or taking in light without reflecting it back is called absorption.
Light Transmission
- An object that allows some but not all light to pass through is called a translucent object.
Morse Code
- In Morse code, signals can be transmitted using flashing lights.
Lens Effect
- A lens affects the light passing through it by refracting (bending) it.
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