- Feel free to use the questions below to check (or improve) your understanding of the concepts in this physics module.

- Which has more surface area?
- a whole potato
- a potato cut into four quarters
- a potato cut into Freedom fries (ex-French fries)
- all of these have the same surface area

- Doubling the length of the sides of a cube multiplies its volume by
- 2 and its surface area by 1
- 4 and its surface area by 2
- 6 and its surface area by 3
- 8 and its surface area by 4
- does not change its volume

- Halving the diameter of a rope will multiply its strength by
- 1
- 1/2
- 1/4
- 1/8
- 2
- 4
- not enough information

- Which has greater surface area for a given body weight (i.e., greater surface area per unit weight)
- a snake
- an elephant
- a bowling ball
- a piece of string
- not enough information

- An object has a mass of 60 kg and a density of 30 kg per cubic meter. What is the volume of the object?
- 1800 cubic meters
- 2 cubic meters
- 30 cubic meters
- 60 cubic meters
- not enough information

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