Work Done & Friction (OCR GCSE Physics A, Combined (Gateway Science Suite)): Quizzes
📚Quizzes
Practise the questions
11 questions from this quiz
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Practise the questions
11 questions from this quiz
What is friction?
What is friction?
A force between surfaces in contact
In which direction does friction act?
In which direction does friction act?
Opposite to the motion
What happens to energy used against friction?
What happens to energy used against friction?
It is transformed to heat
What happens to temperature when friction occurs?
What happens to temperature when friction occurs?
It increases
What does work done measure?
What does work done measure?
Energy required to move an object
What is the equation for work done?
What is the equation for work done?
What is the unit for work done?
What is the unit for work done?
Joules (J)
A force of 20 N moves an object 5 m. Calculate work done using .
A force of 20 N moves an object 5 m. Calculate work done using .
100 J
A 600 N person climbs 1294 m. What is the work done?
A 600 N person climbs 1294 m. What is the work done?
776,400 J
Why does a heavier person need more energy to climb the same distance?
Why does a heavier person need more energy to climb the same distance?
They weigh more
A 400 N person climbs 1294 m. Calculate the work done.
A 400 N person climbs 1294 m. Calculate the work done.
517,600 J