Waves & Different Materials

Question 1

A student shines a narrow beam of light onto four different materials placed side‑by‑side: a clear glass window, a black piece of cloth, a polished metal mirror, and a white sheet of paper. Which material will allow the greatest amount of the light to be transmitted through it?

Accepted Answer

clear glass window

Answer

black piece of cloth

Answer

polished metal mirror

Answer

white sheet of paper

Question 2

When sunlight shines on a clear glass window, which statement best describes what happens to the visible‑light portion of the sunlight?

Accepted Answer

Most of the visible light is transmitted through the glass.

Answer

Most of the visible light is absorbed by the glass.

Answer

Most of the visible light is reflected off the surface of the glass.

Answer

The glass converts the visible light into infrared radiation.

Question 3

When you look at a red rubber ball under white light, which of the following best explains why the ball appears red?

Accepted Answer

The ball reflects red wavelengths of visible light and absorbs the other colors.

Answer

The ball absorbs red wavelengths and transmits the other colors.

Answer

The ball reflects all colors of visible light equally, and the red appearance is due to the eye.

Answer

The ball transmits red wavelengths of visible light and absorbs the other colors.

Try three questions

A student shines a narrow beam of light onto four different materials placed side‑by‑side: a clear glass window, a black piece of cloth, a polished metal mirror, and a white sheet of paper. Which material will allow the greatest amount of the light to be transmitted through it?

When sunlight shines on a clear glass window, which statement best describes what happens to the visible‑light portion of the sunlight?

When you look at a red rubber ball under white light, which of the following best explains why the ball appears red?

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