1
Define work done by constant force
Define scientific work and its SI unit.
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Work, Energy and Simple Machines
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2
Calculate work done by force
Solve problems using work done by a constant force.
3
Define power and its unit
Explain power as rate of doing work.
4
Calculate power
Solve numerical problems using power expression.
5
Explain energy and its SI unit
Define energy and recognise joule as SI unit.
6
Identify forms and interconversion of energy
Identify energy forms and simple energy conversions nearby.
7
State work energy theorem
State how work changes kinetic energy.
8
Define kinetic energy
Explain energy possessed by a moving object.
9
Derive kinetic energy expression
Derive kinetic energy expression for a moving object.
10
Calculate kinetic energy
Solve kinetic energy problems using given quantities.
11
Define potential energy at height
Explain energy stored due to position above ground.
12
Derive potential energy expression
Derive gravitational potential energy expression.
13
Calculate potential energy
Solve potential energy problems using height and mass.
14
Explain energy conversion in free fall
Explain potential and kinetic energy conversion in falling objects.
15
State law of conservation of energy
State that energy changes form but total energy remains conserved.
16
Identify levers pulleys and inclined planes
Recognise common simple machines and their uses.
17
Define mechanical advantage
Define mechanical advantage of a simple machine.
18
Calculate mechanical advantage
Solve simple mechanical advantage problems.
19
Demonstrate mechanical advantage
Build or test a simple machine to show mechanical advantage.
20
Model energy changes in real events
Develop models and communicate results for energy transformations.
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