A mobility scooter speeds up along a level path. Its constant driving force acts in the direction of motion for 8.0 m. Of the work done by this force, 480 J is transferred to the scooter's kinetic energy store and 160 J is transferred to thermal energy stores. What is the driving force?
80 N80\ \mathrm{N}80 N
20 N20\ \mathrm{N}20 N
40 N40\ \mathrm{N}40 N
60 N60\ \mathrm{N}60 N
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.