Using Light — Unit test

Question 1

Which is one advantage of using a reflecting telescope instead of a refracting telescope?

Revolt · Accepted Answer

Reflecting telescopes produce clearer images.

Question 2

Makori drew the diagram below to show how a light microscope works.

Revolt · Accepted Answer

Change the label “Virtual image from objective lens” to “Real image from objective lens.”

Question 3

What kind of image does the lens in a camera produce?

Revolt · Accepted Answer

real and upside down

Question 4

Which best explains how fiber-optic technology has improved communication?

Revolt · Accepted Answer

It has allowed for faster transmission of Internet signals.

Question 5

Which best explains why one laser beam might appear blue and another laser beam might appear red?

Revolt · Accepted Answer

Each laser beam is made up of one specific wavelength of light.

Question 6

A magnifying glass will produce a larger, virtual image because the glass is made of a ________ lens.Which best completes the statement?

Revolt · Accepted Answer

convex

Question 7

Which best compares a nondigital and a digital camera?

Revolt · Accepted Answer

A nondigital camera uses film to record images, and a digital camera uses sensors.

Question 8

Which is a use of fiber optics?

Revolt · Accepted Answer

transmitting telephone signals

Question 9

How are reflecting telescopes similar to devices that produce laser light?

Revolt · Accepted Answer

Both use mirrors to reflect a beam of light.

Question 10

Which is one use of lasers?

Revolt · Accepted Answer

cutting an iron bar into two pieces

Using Light — Unit test Answers