OPTION 1 POWER COMPANY
YOUR PANEL-
CIRCUITS
Transformer
Meter
100% Energy
(188 Joules)
High
Voltage
Breakers
NNN
Light or
appliance
2003
65% Conversion Loss
(122 J)
75% Resistive Loss
98% Heat loss
(56.65 J)
Scenario
The Law of Conservation of Energy states that energy cannot be created or destroyed.
The diagram above shows an electrical grid and the energy transfers that takes place after the
energy leaves the power plant. When used, the power plant produces 188 J of electrical energy.
Only 2% (1.35 J) gets converted into the radiant energy in your home,
Write a scientific explanation that answers whether or not this diagram follows the Law of
Conservation of Energy. Make sure you state your claim, evidence, and reasoning in your
explanation