Which of the following movements requires the greatest amount of work to be done?
a force of 8 N8\text{ N}8 N moving an object a distance of 6.0 m6.0\text{ m}6.0 m
a force of 12 N12\text{ N}12 N moving an object a distance of 3.5 m3.5\text{ m}3.5 m
a force of 5 N5\text{ N}5 N moving an object a distance of 10.0 m10.0\text{ m}10.0 m
a force of 15 N15\text{ N}15 N moving an object a distance of 2.0 m2.0\text{ m}2.0 m
533 exam-style questions on CIE IGCSE Physics 1.7 Energy, work and power, covering 1.7.1a Energy stores and energy transfers, 1.7.1b Conservation of energy, 1.7.1c Kinetic and gravitational potential energy, 1.7.2 Work done, 1.7.3 Energy resources, 1.7.3a Energy resources and electricity generation, 1.7.3b Nuclear fusion as an energy source, 1.7.3c Efficiency of energy transfer, and 1.7.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.