**Goal:** Recognize a lack of information

**Source:** CT151.2S02-24

Consider the situations at right. Let m < M. Which spring has

the largest spring constant?

- A
- B
- C
- A and B are equal
- A and C are equal
- B and C are equal
- All of them have the same spring constant
- Cannot be determined

## Commentary:

## Answer

(8) The objective of this question is to reveal what students are

assuming about the springs. The reasoning behind any incorrect answer

should be thoroughly discussed.