A cyclist accelerates along a straight, level road. A constant forward force of 60 N acts on the cyclist and bicycle. Their kinetic energy increases by 900 J, while friction and air resistance transfer 300 J to thermal stores. What distance does the cyclist travel while these energy changes take place?
15 m15\ \mathrm{m}15 m
10 m10\ \mathrm{m}10 m
5.0 m5.0\ \mathrm{m}5.0 m
20 m20\ \mathrm{m}20 m
115 exam-style questions on Edexcel GCSE Physics 8.1 Energy transfers and work, covering 8.1.1 Energy stores and transfer diagrams, 8.1.2 Ways of changing a system's energy, and 8.1.3 Work done by forces. Each one has a worked solution and a mark scheme showing where the marks go.