Unit Test

Question 1

What information do you need to know to calculate the cost of the pizza?

Revolt · Accepted Answer

B: how many people will be eating pizza; C: how many slices of pizza each person will eat; F: how many slices are in each pizza; G: how much each pizza costs

Question 2

If there are 3 ft in 1 yd, which of the following are possible conversion factors for feet and yards? Check all that apply.

Revolt · Accepted Answer

A: ; D:

Question 3

If 1,000 mL = 1 L, which of the following are possible conversion factors for liters and milliliters? Check all that apply.

Revolt · Accepted Answer

C: ; D:

Question 4

For a research project on time management, Yuri needs to calculate how many hours the average high school student spends in school each year. Which of these dimensional analysis equations is the correct one for him to use?

Revolt · Accepted Answer

B:

Question 5

A particular experiment requires 13.5 µL hydrochloric acid solution. If 250 mL of hydrochloric acid solution is available, how many times can the experiment be performed? (Note: 1mL = 1,000 µL.)

Revolt · Accepted Answer

B: about 18,500

Question 6

The expression below sets up the unit conversion for this problem.Did you set up the conversion correctly?

Revolt · Accepted Answer

A: Yes, I set it up correctly and got the right answer.

Question 7

The Large Hadron Collider is a particle accelerator that may be able to provide insight into the most fundamental structure of matter. It is 27 km long. If one wavelength of red light is 650 nm, how many wavelengths does a photon of red light travel when it passes from one end of the collider to the other? (Note: 1 m = 1 x 109 nm, 1 km = 1,000 m.)

Revolt · Accepted Answer

A: 4.2 × 1010 wavelengths

Question 8

A piece of filter paper has an area of 12.5 cm2. Which of these expressions shows the correct setup for converting this area to square millimeters (mm2)?

Revolt · Accepted Answer

B:

Question 9

The expression below shows how to set up the unit conversion for this problem.Did you set up the conversion correctly?

Revolt · Accepted Answer

C: No, I did not set up the conversion correctly.

Question 10

Which of these objects has the largest volume?

Revolt · Accepted Answer

B: a spherical balloon with a volume of 0.05 m3

Unit Test Answers

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