Waves and Energy Concepts Flashcards

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Questions and Answers

What is a wave?

A wave is a disturbance that transfers energy from one place to another.

What is a medium in the context of waves?

Any substance a wave moves through.

What are mechanical waves?

Waves that transfer energy through matter.

What are transverse waves?

<p>The direction in which the wave travels is perpendicular to the direction of the disturbance.</p> Signup and view all the answers

What are longitudinal waves?

<p>Waves that travel in the direction of the disturbance, also known as compressional waves.</p> Signup and view all the answers

What is the crest of a wave?

<p>The highest point or peak of a wave.</p> Signup and view all the answers

What is the trough of a wave?

<p>The lowest point or peak of a wave.</p> Signup and view all the answers

What is amplitude in the context of waves?

<p>For a transverse wave, it is the distance between a line through the middle of a wave and a crest or trough; the bigger the amplitude, the more energy the wave has.</p> Signup and view all the answers

What is wavelength?

<p>The distance from one wave crest to the next.</p> Signup and view all the answers

What is frequency?

<p>The number of waves passing a fixed point in a certain amount of time.</p> Signup and view all the answers

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Study Notes

Waves

  • A wave is a disturbance that transfers energy from one place to another.

Medium

  • Medium refers to any substance that a wave moves through.

Mechanical Waves

  • Mechanical waves transfer energy through matter.

Transverse Waves

  • In transverse waves, the direction of wave travel is perpendicular to the direction of disturbance.

Longitudinal Waves

  • Longitudinal waves travel parallel to the disturbance and are also known as compressional waves due to the compressed areas they create.

Crest

  • The crest is the highest point or peak of a wave.

Trough

  • The trough is the lowest point or valley of a wave.

Amplitude

  • Amplitude in a transverse wave is the distance from the middle of the wave to either the crest or the trough; greater amplitude indicates higher energy.

Wavelength

  • Wavelength is defined as the distance between two consecutive wave crests.

Frequency

  • Frequency is the number of waves passing a fixed point in a specific time period.

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