Question

8
emember, all forms of potential energy involve things in unstable positions.\ what does \unstable\ mean in this sentence? a flimsy b changeable c broken d moving

Explanation:

To determine the meaning of "unstable" in the context of potential energy, we analyze each option:

• Option A: "Flimsy" implies being weak or insubstantial, not related to the position's tendency to change.
• Option B: "Changeable" fits as potential energy - related positions (e.g., an object on a hill) are likely to change (move) to a more stable state, so "unstable" here means prone to change.
• Option C: "Broken" has no relation to the concept of a position in potential energy.
• Option D: "Moving" is the result of an unstable position, not the meaning of "unstable" itself.

Answer:

B. Changeable