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Title: Work, energy and power - Mind map - Mnemonics
Description: Work done by a constant force and a variable force; kinetic and potential energies, workenergy theorem, power. Potential energy of a spring, conservation of mechanical energy, conservative and non-conservative forces; Elastic and inelastic collisions in one and two dimensions.
Description: Work done by a constant force and a variable force; kinetic and potential energies, workenergy theorem, power. Potential energy of a spring, conservation of mechanical energy, conservative and non-conservative forces; Elastic and inelastic collisions in one and two dimensions.
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6
Rate of doing work
w
...
t time
P =
Time t
Work w
Power (
P)
ds
Pinst
...
6 × 106J
Types
y
rg
Capability of doing
work
Energy can neither be created nor
destroyed; it can only be
transformed from one form to
another
...
Work done by constant
force
ne
When force (F) and displacement (s)
are in opposite direction
...
π
W will be+ve when 0<θ<
2
Change in Kinetic Energy =
Work done by net force on
the body i
...
W = zero
when θ = π
2
Equivalence of mass and Energy
E=∆mc2
Formula
• Total energy and linear
momentum conserved
...
Kine
tic E
ner
gy
• Total mechanical/kinetic
energy is conserved
...
Title: Work, energy and power - Mind map - Mnemonics
Description: Work done by a constant force and a variable force; kinetic and potential energies, workenergy theorem, power. Potential energy of a spring, conservation of mechanical energy, conservative and non-conservative forces; Elastic and inelastic collisions in one and two dimensions.
Description: Work done by a constant force and a variable force; kinetic and potential energies, workenergy theorem, power. Potential energy of a spring, conservation of mechanical energy, conservative and non-conservative forces; Elastic and inelastic collisions in one and two dimensions.