Exam-style question
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If a mass of 10 kg is raised to a height of 5 m in a gravitational field where g = 9.81 N/kg, what is the gravitational potential energy gained? Scenario focus: magnetic fields in a distinct A-Level Physics fields context; identify the field quantity, source, direction, and unit before selecting the answer.
- A.490.5 J
- B.981 J
- C.50 J
- D.100 J
Model answer
What a good answer should say
- 490.5 J
Explanation
Why this works
The correct answer is 490.5 J. This is correct for Gravitational fields because the stem is testing magnetic fields; the chosen option keeps the field quantity, source interaction, direction, and unit consistent.
The alternatives are weaker because they mix gravitational, electric, magnetic, orbital, or transformer ideas, or they attach the right number to the wrong physical meaning.
Common mistake
No common mistake is linked to this question yet.