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Summary OCR A level Physics A 3.3 Work, energy and power £5.49   Add to cart
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Summary OCR A level Physics A 3.3 Work, energy and power
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Summary notes for topic 3.3 Work, energy and power covering equations, energy transfers, efficiency and types of energy . Notes contain definitions, highlighted key terms, explanations, diagrams and break downs of equations

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  • June 28, 2022
  • 6
  • 2021/2022
  • Summary

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3.3 Work, energy
and power

, Work done +
energy
W =
Fx

work done ,
W
,
in joules ,
J
Force ,
F
,
in newtons , N
Distance moved in direction of force ,
oc ,
in metres ,
m




joule is
One the work done when a 1N
force moves its point
of application 1m in the direction of the
force .




Work is done when a
force is exerted on an object AND it
moves .




Work done
energy transferred
=




0
defined the do work
energy is as
capacity to
when work is done at an
angle
to motion the , force can be broken down
F
into its vertical and horizontal components .




g direction of
DDD
-
- - - -




motion
in this case , the
component of the force
F in the direction of motion is Fios 8


therefore ,
W = Focused

Forms of energy

Type Description Examples

Kinetic energy due to the
moving car
•




motion of object atoms
an
moving
•



with mass

Gravitational energy of an object due to • child at the
top of a slide

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