Question detail
In a collision, total momentum before equals total momentum after if no external force acts. What principle is used?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Forces and motion
Question
- A. Conservation of momentum applies to the closed system.
- B. Kinetic energy must always be conserved in every collision.
- C. Momentum is the same as force during impact.
- D. Only the faster object has momentum.
Answer
The correct answer is: Conservation of momentum applies to the closed system.
Explanation
The correct option is Conservation of momentum applies to the closed system.. This fits Required practical: acceleration in Forces and motion because it uses the named force or motion relationship in the situation, gives the correct unit or graph meaning where needed, and avoids the specific misconception in the distractors.
Common mistake
Misunderstanding Acceleration Data Processing
Students often confuse the steps involved in processing acceleration data, leading to incorrect calculations or interpretations.
To fix this, students should carefully follow a structured approach: collect accurate measurements, ensure consistent units, and apply the correct formulas systematically.
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