Exam-style question
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A 2 kg object is raised to a height of 5 m. Calculate the gravitational potential energy gained by the object.
Model answer
What a good answer should say
- The gravitational potential energy gained by the object is 98 J.
Explanation
Why this works
This question tests the application of the gravitational potential energy formula. The formula used is Ep = m x g x h.
Substituting the values, we have Ep = 2 kg x 9.8 N/kg x 5 m, which gives us a final answer of 98 J.
Common mistake
No common mistake is linked to this question yet.