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Work And Energy, dropped image link, dropped image link, dropped image…
Work And Energy
6.1 Work Done by a Constant Force
unit : Nm / J
scalar quantity
-product of the force and the distance moved in the direction of the force
Work done = 0 when the force
perpendicular
to displacement
6.3 Work Done by a Varying Force
work done by a spring force
work done = area under the F-x graph
6.4 Kinetic Energy and the Work-Energy Principle
Principle of Conservation of Energy
-energy cannot be created or destroyed.
-It can only be transferred from one type to another
Kinetic Energy
Work-Energy Theorem
-the net work done on an object equal to the change in the object's kinetic energy
Power
energy dissipated per unit time
rate of doing work
unit : W / J/s
6.2 Scalar Product and Two Vectors
scalar or dot product of force and displacement
i ) positive work done
ii ) negative work done
iii) Work done = 0
WONG SIEW HAN A20SC0425
