Question detail
When an object is accelerated by a constant force, which type of energy is primarily affected?
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. Thermal energy
- B. Kinetic energy
- C. Gravitational potential energy
- D. Elastic potential energy
Answer
Kinetic energy
Explanation
The kinetic energy of an object increases when it is accelerated by a constant force, as work is done on the object.
Common mistake
Confusing work done with energy stored
Students often think that the energy stored in an object increases simply because work is done on it, without considering the type of energy store and the system’s constraints.
Explain that work done by a constant force changes the energy store of the object (e.g., kinetic, potential, or elastic) only if the force acts over a displacement; the amount of energy transferred equals the work (force × distance) and is stored as a specific form of energy, not as a generic ‘energy increase’.
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