Question

Question 1 (1 point)
A television remote control is used to direct pulses of electromagnetic radiation to a receiver on a television. What does this communication between the remote control and the television illustrate about electromagnetic radiation?
a
It diffracts and accelerates in air.
b
It possesses energy inversely proportional to its frequency.
c
It transfers energy without transferring mass.
d
It is a longitudinal wave.
Question 2 (1 point)
A student created a chart that shows information about the electromagnetic spectrum.



The student made a mistake on his diagram. Which mistake did he make?

a
Infrared radiation is used to create energy in nuclear reactors.
b
Radio waves are used by food companies to sterilize produce.
c
Gamma waves are used in medicine to shrink problem cells.
d
Ultraviolet light is used to communicate information through space.
Question 3 (1 point)
Airport security uses electromagnetic waves to see items inside of luggage without having to open the bags. Which type of electromagnetic waves would be best for airport security to use?
a
X-rays would be best because they are low-energy waves that can penetrate gases.
b
X-rays would be best because they are high-energy waves that can penetrate solids.
c
Radar waves would be best because they are low-energy waves that can penetrate gases.
d
Radar waves would be best because they are high-energy waves that can penetrate solids.
Question 4 (1 point)
Pick the three statements that describe convex lenses.

a
They are thicker at the ends than in the middle.
b
They are thicker in the middle than at the ends.
c
Light rays spread out as they exit the lens.
d
Light rays converge as they exit the lens.
e
They make the image of an object appear smaller.
f
They make the image of an object appear larger.
Question 5 (1 point)
Brenna draws two lens models, one of a concave lens and the other of a convex lens. Match the descriptions of her drawings to the lens models they describe.

Column A
1.
The lens is thicker in the middle and thinner on the edges.:
The lens is thicker in the middle and thinner on the edges.
2.
Light rays go through the lens and come together at a point.:
Light rays go through the lens and come together at a point.
3.
The lens is thinner in the middle and thicker on the edges.:
The lens is thinner in the middle and thicker on the edges.
4.
Light rays go through the lens and spread apart.:
Light rays go through the lens and spread apart.
Column B
a.Convex lens model
b.Concave lens model
Question 6 (1 point)
A prism disperses white light, forming a spectrum. Which of the following is the best explanation for this phenomenon?


a
The white light undergoes partial absorption inside the prism.
b
Different frequencies of visible light are absorbed at different rates inside the prism.
c
The white light undergoes partial reflection inside the prism.
d
Different frequencies of visible light move at different speeds in the prism.
Question 7 (1 point)
Lapis is studying the relationship between the energy transferred by electromagnetic waves and their wavelengths using this diagram.



How does she describe this relationship? Select all that apply.

a
As the wavelength increases, the energy decreases.
b
As the wavelength increases, the energy increases.
c
As the wavelength decreases, the energy decreases.
d
Gamma rays have a small wavelength and a large amount of energy.
e
Gamma rays have a large wavelength and a small amount of energy.
f
Radio waves have a small wavelength and a large amount of energy.
Question 8 (1 point)
A group of students is investigating the behavior of light. They test how the path of the light changes as it passes from one object to another of a different shape or medium. Which of the following would most likely cause a beam of light to increase in wavelength and bend away from the normal?

a
passing from glass into air
b
passing from air into glass
c
passing from a water faucet into a bathtub of water
d
passing from a round glass into a square glass
Question 9 (1 point)
A blue light is shined on objects X and Y. Object X appears to be blue, and object Y appears to be black. Which of the following is correct?

a
Object X reflects blue light, and object Y absorbs blue light
b
Object X must be blue, and object Y must be black.
c
Object X absorbs blue light, and object Y reflects blue light.
d
Object X must be black, and object Y must be blue
Question 10 (1 point)
Marissa, Connor, and Felipe stand outside for ten minutes. Then, the temperatures of their shirts are taken as shown in the picture below.



What do the temperatures of the shirts show about light?

a
Light disappears into white shirts.
b
Light can be absorbed, and darker colors absorb more light
c
Light can be reflected, and darker colors reflect more light.

Answer 1

Question 1: c

Question 2: d

Question 3: b

Question 4: b, d, f

Question 5:
1 → a
2 → a
3 → b
4 → b

Question 6: d

Question 7: a, d

Question 8: a

Question 9: a

Question 10: b