A force does 90 J of work while moving an object 0.50 m in the direction of the force. What is the force?
89.5 N89.5\ \mathrm{N}89.5 N
90.5 N90.5\ \mathrm{N}90.5 N
45 N45\ \mathrm{N}45 N
180 N180\ \mathrm{N}180 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.