Leap Review Sound and Light waves

Front

What are sound waves?

Back

Sound waves are vibrations that travel through a medium (like air, water, or solids) and can be heard when they reach a person's or animal's ear.

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What are light waves?

Back

Light waves are a type of electromagnetic wave that is visible to the human eye and is responsible for the sense of sight.

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What is the electromagnetic spectrum?

Back

The electromagnetic spectrum is the range of all types of electromagnetic radiation, including radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays.

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What is the speed of light in a vacuum?

Back

The speed of light in a vacuum is approximately 299,792 kilometers per second (or about 186,282 miles per second).

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What does it mean for a wave to reflect?

Back

Reflection is when a wave bounces off a surface and changes direction without passing through the medium.

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What is refraction?

Back

Refraction is the bending of a wave as it passes from one medium to another, caused by a change in speed.

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What is the difference between transparent, translucent, and opaque materials?

Back

Transparent materials allow light to pass through clearly, translucent materials allow some light to pass but scatter it, and opaque materials do not allow light to pass through.

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What is frequency in relation to waves?

Back

Frequency is the number of waves that pass a given point in one second, measured in hertz (Hz).

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What is wavelength?

Back

Wavelength is the distance between two consecutive peaks (or troughs) of a wave.

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What is amplitude in wave physics?

Back

Amplitude is the height of a wave from its rest position to its peak, indicating the energy of the wave.