1. What is NOT an example of reflection?

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1 point
Light through a window
A mirror
An echo
All are examples of reflection

2. What is true about objects that are black?
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1 point
All colors of the light spectrum are reflected.
All colors of the light spectrum are absorbed.

3. Objects that appear blue:
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1 point
reflect blue and absorb all other colors of the spectrum.
absorb blue and reflect all other colors of the spectrum.
absorb all colors of the spectrum.
reflect all colors of the spectrum.

4. Waves can experience refraction and diffraction. What is the difference?
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1 point
When waves refract they bend around an object. When the diffract they change speed moving from one medium to the next.
When waves refract they change speed moving from one medium to the next. When the diffract they bend around an object.
When waves refract they absorb light and reflect colors. When they diffract they absorb colors and reflect light.
When waves diffract they absorb light and reflect colors. When they refract they absorb colors and reflect light.

5. What happens to the wavelength of the light wave when it passes from air into glass?
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1 point
It increases
It decreases
Nothing happens