Light Waves (Year 7 Physics)

The following test is covering 'Light Waves' for Year 7 Physics.

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Question 1

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What are the peaks of light waves called?

What property of light causes it to spread out as it passes through a narrow opening or around the edges of an object?

How fast does light travel in a vacuum?

Light is considered to be a:

Which of the following colors of light has the shortest wavelength?

When light bounces off a surface, this is called:

Which of the following materials allows all of the light to pass through?