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textbooks nis edu kz
WORK POWER

is an ability of spent in a unit of
an object to do time (1 s)

electrical energy
ENERGY

chemical energy

J
(SI) is measured in
can be stored/ potential energy of
transferred as deformations

gravitational thermal energy (heat) kinetic energy
potential energy

is defined as then is defined as

E pot = mgh spent energy is transformed v 2
into heat energy in the E K = 2
environment

All of these are connected with

LAW OF CONSERVATION OF ENERGY

the total energy of a system does not change:
energy transforms from one type to another

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