What is a trough?

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Explore Alberta's Grade 8 Science curriculum on Light and Optical Systems. Test your knowledge with engaging quizzes including flashcards and multiple choice questions. Prepare effectively for your exam!

Multiple Choice

What is a trough?

Explanation:
In waves, the displacement moves above and below a rest position. The lowest point of the wave is called the trough—the bottom of the curve between two crests. It is opposite the crest, which is the top of the wave. The middle line is the equilibrium position, not a point on the curve. The distance between crests describes the wavelength, not a single point like the trough.

In waves, the displacement moves above and below a rest position. The lowest point of the wave is called the trough—the bottom of the curve between two crests. It is opposite the crest, which is the top of the wave. The middle line is the equilibrium position, not a point on the curve. The distance between crests describes the wavelength, not a single point like the trough.

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