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Chapter 2: Energy and Work Done - Coggle Diagram
Chapter 2: Energy and Work Done
energy is the ability to do work
work
done when an object is moved in the same direction as the applied force
formula
W=Fxd
F(N)
d(m)
unit
Joule(J)
types of energy
gravitational potential energy
energy stored in a body due to its elevated position
formula
Ep=mgh
chemical energy
energy stored in food, fuels and electric cells.
holds atoms and molecules of substances together
kinetic energy
energy that a body possesses due to its motion
formula
Ek=½mv²
nuclear energy
stored in nucleus of an atom
holds protons and neutrons together
released during nuclear reactions
potential energy
energy that is stored in a body as a result of its position or condition
elastic potential energy
energy stored in an elastic object hen its pushed or pulled
energy conservation and convertion
the conservation of energy states that energy cannot be created or destroyed but can be converted from one form into another
sources of energy
renewable
tide
kinetic energy
solar
potential energy
wind
kinetic energy
nuclear
nuclear energy
challenges
expensive to build the respective power station
non-renewable
gas
oil
coal
challenges
need to conserve
causes climate change
units
Joule(J)