Teacher Education in Physics

11

D. (i) If you consider the bottle and its contents as a unit, what can you say about the

density of this unit? Explain.

(ii) How is the density of this unit related to the behavior of the bottle? Explain.

3. A. Considering the bottle and its contents as a single unit, which of the following quantities increase,

decrease, or remain the same as a result of the addition of the piece of metal to the bottle?

Mass

Volume

Density

B. In the beginning of this Activity, you joined plastic cubes together to construct larger pieces.

Which of the following quantities increase, decrease, or remain the same when two or more

cubes are joined together?

Mass

Volume

Density

C. Are your answers to questions 3A and 3B the same? Explain any differences.