Chapter 5

Question 1

Grass appears green because
A) it emits green light and absorbs other colors.
B) it absorbs green light and emits other colors.
C) it transmits green light and emits other colors.
D) it reflects green light and absorbs other colors.

Answer 1

D) it reflects green light and absorbs other colors

Question 2

Everything looks red through a red filter because
A) the filter emits red light and absorbs other colors.
B) the filter absorbs red light and emits other colors.
C) the filter transmits red light and absorbs other colors.
D) the filter reflects red light and transmits other colors.

Answer 2

C) the filter transmits red light and absorbs other colors.

Question 3

Which of the following is an example of reflection or scattering?
A) Red light hits a red sweatshirt.
B) Visible light does not pass through a black wall.
C) Blue light hits a red sweatshirt.
D) Light comes from your computer screen

Answer 3

A) Red light hits a red sweatshirt.

Question 4

We can see each other in the classroom right now because we
A) emit visible light.
B) emit thermal radiation.
C) emit infrared light.
D) reflect visible light.
E) reflect infrared light.

Answer 4

E) reflect infrared light.

Question 5

The wavelength of a wave is
A) how strong the wave is.
B) the distance between a peak of the wave and the next trough.
C) the distance between two adjacent peaks of the wave.
D) the distance between where the wave is emitted and where it is absorbed.
E) equal to the speed of the wave times the wave’s frequency

Answer 5

C) the distance between two adjacent peaks of the wave.

Question 6

From lowest energy to highest energy, which of the following correctly orders the different regions of electromagnetic radiation?
A) infrared, visible light, ultraviolet, x-rays, gamma rays, radio
B) radio, infrared, visible light, ultraviolet, x-rays, gamma rays
C) visible light, infrared, x-rays, ultraviolet, gamma rays, radio
D) gamma rays, x-rays, visible light, ultraviolet, infrared, radio
E) radio, x-rays, visible light, ultraviolet, infrared, gamma rays

Answer 6

B) radio, infrared, visible light, ultraviolet, x-rays, gamma rays

Question 7

From lowest frequency to highest frequency, which of the following correctly orders the different regions of electromagnetic radiation?
A) infrared, visible light, ultraviolet, x-rays, gamma rays, radio
B) radio, infrared, visible light, ultraviolet, x-rays, gamma rays
C) visible light, infrared, x-rays, ultraviolet, gamma rays, radio
D) gamma rays, x-rays, visible light, ultraviolet, infrared, radio
E) Radio, x-rays, visible light, ultraviolet, infrared, gamma rays

Answer 7

B) radio, infrared, visible light, ultraviolet, x-rays, gamma rays

Question 8

From shortest wavelength to longest wavelength, which of the following correctly orders the different regions of electromagnetic radiation?
A) infrared, visible light, ultraviolet, x-rays, gamma rays, radio
B) radio, infrared, visible light, ultraviolet, x-rays, gamma rays
C) visible light, infrared, x-rays, ultraviolet, gamma rays, radio
D) gamma rays, x-rays, visible light, ultraviolet, infrared, radio
E) radio, x-rays, visible light, ultraviolet, infrared, gamma rays

Answer 8

D) gamma rays, x-rays, visible light, ultraviolet, infrared, radio

Question 9

Which of the following statements about x-rays and radio waves is not true?
A) X-rays have shorter wavelengths than radio waves.
B) X-rays and radio waves are both forms of light, or electromagnetic radiation.
C) X-rays have higher frequency than radio waves.
D) X-rays have higher energy than radio waves.
E) X-rays travel through space faster than radio waves.

Answer 9

E) X-rays travel through space faster than radio waves

Question 10

Photons behave like
A) waves.
B) particles.
C) both waves and particles.
D) neither waves nor particles

Answer 10

C) both waves and particles.