An object is accelerated along a frictionless horizontal track by a net force.
Which equation shows the work done on the object?
work done=change in momentum of the object\text{work done} = \text{change in momentum of the object}work done=change in momentum of the object
work done=change in kinetic energy of the object\text{work done} = \text{change in kinetic energy of the object}work done=change in kinetic energy of the object
work done=change in force on the object\text{work done} = \text{change in force on the object}work done=change in force on the object
work done=change in power of the object\text{work done} = \text{change in power of the object}work done=change in power of the object
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.