Work Done & Energy Transfer (AQA GCSE Physics Combined Science): Quizzes

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Work and energy
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12 questions from this quiz

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When is work done on an object?

When a force moves it

What does the amount of work done equal?

The energy transferred

Which formula correctly represents work done?

W=F×sW = F \times s

What is the unit of work done?

Joules (J)

What does 1 joule equal?

1 newton-metre

A force of 100N100\text{N} pushes an object 3m3\text{m}. What is the work done?

300J300\text{J}

When pushing an object across a flat surface, what are you doing work against?

Friction

What happens to an object when work is done against friction?

It heats up

When lifting an object, what are you doing work against?

Gravity

What increases when you lift an object?

Gravitational potential energy

What force is needed to do 360,000J360{,}000\text{J} of work over 300m300\text{m}?

1200N1200\text{N}

A 20kg20\text{kg} mass is lifted 15m15\text{m}. What is the work done? (Use g=10N/kgg = 10\text{N/kg})

3000J3000\text{J}

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