Kinetic Energy (OCR GCSE Physics A (Gateway Science Suite)): Quizzes

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Kinetic Energy
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What is kinetic energy?

Energy stored in moving objects

How much kinetic energy does a stationary object have?

No kinetic energy

What is the formula for kinetic energy?

Ek=12×m×v2E_k = \frac{1}{2} \times m \times v^2

What is the unit of kinetic energy?

Joules (J)

In the formula Ek=12×m×v2E_k = \frac{1}{2} \times m \times v^2, what unit is mass (mm) measured in?

Kilograms (kg)

In the formula Ek=12×m×v2E_k = \frac{1}{2} \times m \times v^2, what unit is speed (vv) measured in?

Metres per second (m/s)

What energy conversion occurs in a car using petrol?

Chemical energy to kinetic energy

A 2 kg object moves at 3 m/s. What is its kinetic energy using Ek=12×m×v2E_k = \frac{1}{2} \times m \times v^2?

9 J

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