Question detail
If the speed of an object is doubled, how does its kinetic energy change?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Energy changes in a system, and the ways energy is stored before and after such changes
Question
- A. It doubles
- B. It triples
- C. It quadruples
- D. It remains the same
Answer
It quadruples
Explanation
The correct option is "It quadruples". It quadruples is right because it directly matches Changes in energy: Recall and apply the equation Ek = 0.5 x m x v^2.. The other options are less suitable because they change the required Physics relationship, confuse the relevant energy store or use a distractor that does not answer the question.
Common mistake
Common Mistake in Kinetic Energy Calculation
Students often forget to square the speed (v) in the kinetic energy equation Ek = 0.5 x m x v^2.
Always remember to square the speed before multiplying by the mass and the 0.5 factor.
Related flashcards
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Related practice questions
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