Lesson 
Learning Outcomes 
Notes 
Book / specification Ref. 
1 
Work done 
 Know that Energy is
transferred when forces act on moving objects.
 Be able to
select and
use the equation:
W = F x d 

P2.12 
2  Power 
Know that power is a measure of the rate at
which energy is transferred. Be able
to solve numerical problems involving energy and power using the
equation
Power = work done
ũ time taken
or Power = energy
transferred ũ time taken 

P2.13 
3 
Kinetic energy 
 Select and
use the equation:
E_{k}
= ― x m x vē

For Higher tier
classes  calculations of GPE and KE, including rearranging to
find velocity for a falling object.
Foundation classes
can still cover the ideas qualitatively  Catapult practical is
straightforward and reasonably entertaining. 
P2.14 
4  Gravitational
potential energy 
 Select and
use the equation:
E_{p} = m x g x
h

For Higher tier
classes  calculations of GPE and KE, including rearranging to
find velocity for a falling object.
Foundation classes
can still cover the ideas qualitatively  Catapult practical is
straightforward and reasonably entertaining. 
P2.14 
5  Momentum I 
Know that all massive objects have momentum when in
motion.
Be able to calculate the momentum of a moving object
using the formula p = m Ũ v
Be able to find the change in momentum of an object,
given information about its velocity.


P2.15 
5  Momentum II 
Know that momentum is conserved in a closed system.
Be able to apply the law of conservation of momentum
to determine the outcome of collision or explosion events.


P2.15 
7
Physics of
transport 
 Understand
the physics behind airbags and crumple zones.
 Discuss
the reasons for speed limits and speed cameras.

discuss crumple
zones and airbags in terms of time taken to come to rest
increasing which reduces average force, and also in terms of
work done over a larger distance  again reducing average force. 
P2.15 