WASSCE Physics · Mechanics — Motion & Forces
Work, Energy, and Power
Definitions, formulas, energy conversions, and the principle of conservation of energy.
- lessons
- 2
- of study
- 14 min
- free to read
- 1
Across the topic: 7 sections · 8 worked examples · 1 diagram
Topic content
Lessons in this topic
2 lessons · 14 min
- 1Work, energy, power and conservation of energy7 minFree7 minFree
4 worked examples · 1 diagram
- 2Efficiency, vehicle power and energy sources7 min Plan7 min Plan
- Energy problems with friction
- Efficiency
- Power of a vehicle
4 worked examples
Learn work, energy, and power step by step
Unlock both lessons on work, energy, and power, plus every other WASSCE Physics topic, exam-style practice marked instantly and guided learning tools.
- Free account, no card needed
- Everything from 25 NLe
- No automatic renewal
More in Mechanics — Motion & Forces
All Physics topics- 12Simple MachinesLevers, pulleys, wheel and axle, inclined planes, and gears — with mechanical advantage and efficiency.1Machines: mechanical advantage, velocity ratio, levers and pulleysFree2Inclined plane, screw jack, gears and the hydraulic press7 min 2 lessons 15 min
- 01Motion in a Straight LineDistance, displacement, speed, velocity, and acceleration, with distance-time and velocity-time graphs.1Distance, displacement, speed, velocity and accelerationFree2Motion graphs and the ticker-tape timer10 min 2 lessons 19 min
- 02Equations of MotionThe four kinematic equations for uniform acceleration and how to apply them to WAEC problems.1The equations of uniformly accelerated motionFree2Multi-stage journeys and chase problems7 min 2 lessons 15 min
- 03Motion under GravityFree fall, acceleration due to gravity, and motion of objects thrown straight up or dropped.1Free fall: bodies dropped and thrown upwardsFree2Harder vertical motion problems and measuring g7 min 2 lessons 15 min