A rectangular sample block is pushed horizontally along a guide rail in a laboratory testing rig.
The magnetic actuator exerts a constant horizontal force of 4.5 N on the block. The block is moved a distance of 0.80 m.
State the equation linking work done, force, and distance.
Calculate the work done in moving the block.
State how much energy is transferred to the block.
The guide rail suddenly hits a mechanical stopper, causing the upright block to tip over onto its broader side and come to a complete stop.
How does this affect the kinetic energy of the block once it has fully come to rest?
Why does tipping over onto its broader side reduce the gravitational potential energy of the block?
12 exam-style questions on Edexcel IGCSE Physics Work and power. Each one has a worked solution and a mark scheme showing where the marks go.