CAIE IGCSE Physics Conservation of Energy
Practise stating conservation of energy and applying it to simple falling, collision and motor systems while accounting for transfers to the surroundings.
- Syllabus
- 2026–2028
- Course
- Physics 0625
Exam points
- state that energy cannot be created or destroyed but is transferred between stores
- equate initial and final energy totals and include energy dissipated to the surroundings
- explain lower kinetic or useful output by naming thermal, sound or other transferred energy
1.7.1.3—Principle of the conservation of question 1
A hard ball is dropped vertically downwards.
Fig. 1.1 shows the speed-time graph for the ball from when it is dropped until it hits the ground.
Air resistance is ignored.
Fig. 1.1
Determine the kinetic energy of the ball when it has fallen half way to the ground.
kinetic energy =
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