A student pushes a box across a floor with a constant force.
Which statement about the work done by the student is correct?
Work is done because the force moves the box through a distance
Work is done only if the box speeds up as the force acts on it
No work is done because the box stays in contact with the floor
Work is done only if the force on the box acts in an upward direction
44 exam-style questions on OCR GCSE Physics 7.1 Work done, covering 7.1.1 Conservation of energy in a closed system, 7.1.2 Energy stores and transfers, 7.1.3 Energy changes by heating, forces and current, 7.1.4 Quantifying energy transfers in a system, and 7.1.5 Kinetic, elastic and gravitational potential energy. Each one has a worked solution and a mark scheme showing where the marks go.