Exam-style question
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What is the formula for calculating the kinetic energy of an object?.
- A.Ek = 0.5 x m x v^2
- B.Ek = m x g x h
- C.Ek = F x d
- D.Ek = m x a
Model answer
What a good answer should say
- Ek = 0.5 x m x v^2
Explanation
Why this works
The correct formula for kinetic energy is Ek = 0.5 x m x v^2, where m is mass and v is velocity. This formula shows how kinetic energy depends on the mass of the object and the square of its speed.
Common mistake
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