A launch system exerts a constant force of 12 kN12\ \mathrm{kN}12 kN on a roller-coaster train for 30 m in the direction of travel. The train's kinetic energy store increases by 300 kJ. The work done changes only the kinetic and thermal energy stores.
How much energy is transferred to thermal stores during the launch?
360 kJ360\ \mathrm{kJ}360 kJ
660 kJ660\ \mathrm{kJ}660 kJ
60 kJ60\ \mathrm{kJ}60 kJ
300 kJ300\ \mathrm{kJ}300 kJ
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.