Exam-style question
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What is the consequence of increasing the magnitude of the forces in a couple?.
- A.The rotational speed decreases.
- B.The object becomes more stable.
- C.The turning effect increases.
- D.The object stops rotating.
Model answer
What a good answer should say
- The turning effect increases.
Explanation
Why this works
The cause is the increase in the magnitude of the forces applied in a couple. The mechanism involves a greater torque being generated due to the stronger forces.
The effect is an increased turning effect, which can enhance the rotational motion of the object, making it easier to rotate.
Common mistake
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