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Energy and change
Course: PHY 211, Fall 2011School: Boise State
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Word Count: 282
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Energy explains Ed the five basic rules of Energy and Change EnergyandChange:thebasicfivelaws Law#1. An unbalanced force acting on a body results in a change in motion. Whatthismeans: the balancing scales will not moveuntilwe do what??? Apply a weight (an unbalanced force!) EnergyandChange:thebasicfivelaws Law#2: Objects remain stationary or in constant motion under the influence of balanced forces...
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Energy
explains Ed the
five basic rules
of Energy and
Change
EnergyandChange:thebasicfivelaws
Law#1. An unbalanced force
acting on a body results in a
change in motion.
Whatthismeans: the balancing
scales will not moveuntilwe
do what???
Apply a weight (an unbalanced force!)
EnergyandChange:thebasicfivelaws
Law#2: Objects remain
stationary or in constant
motion under the influence of
balanced forces
Whatthismeans: The wheel
will continue to spin and spin
and spinuntilwhat???
We unbalance it (here, with brakes). Note that,
once it stops, the wheel is once again in balance.
EnergyandChange:thebasicfivelaws
Law#3: Energy can be
transferred from one medium
to another.
Whatthismeans:When we
heat the potwhat happens?
The energy from the fire is
transferred the to water!
EnergyandChange:thebasicfivelaws
Law#4: Transfers of energy
can vary according to the
medium in which it travels.
Whatthismeans:When you
put a pencil into a glass of
waterwhat happens?
Thanks to the refracting
property of water, the pencil
appears to be bent!
EnergyandChange:thebasicfivelaws
Law#5: Energy is conserved
when it is transferred or
transformed
Whatthismeans:When you
turn on a bulb, you get energy in
the form of light, but you get
what other form of energy as
well?
Stumped? Then, do the
experiment with your
teacher!
Thispowerpointwaskindlydonatedto
www.worldofteaching.com
http://www.worldofteaching.com
Ishometowelloverathousandpowerpoints
submittedbyteachers.Thisafreesite.Pleasevisitand
Ihopeitwillhelpinyourteaching
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Boise State - PHY - 211
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