Edexcel IGCSE Physics 4.15 Energy conservation links
Practise applying conservation of energy to link GPE, KE and work done in ramps, braking, falling objects and energy losses.
- Syllabus
- First assessment 2019
- Course
- Physics 4PH1
Exam points
- calculate energy lost by subtracting KE gained from GPE lost on a ramp
- explain work done against friction as the difference between KE lost and GPE gained
- use work done = force x distance to link braking force with loss of kinetic energy
4.15 Energy conservation links question 1
A student uses this apparatus to investigate the force needed to pull a block along a ramp.
Explain why the work done to move the block along the ramp is greater than the increase in the GPE store of the block.
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