Transcript Energy Transformation By: Courtney Benson, Thomas Knight, and

Energy
Transformation
By: Courtney Benson, Thomas Knight, and
Andrew Thomson
Potential and Kinetic
Potential energy is stored energy and the
energy of position
Kinetic energy is motion, the movement of
energy
These categories are further divided up into
subcategories
Types of Energy
•Potential: Chemical, mechanical, nuclear,
gravitational, electric
•Kinetic: Radiant, thermal, motion, sound
Entropy
Disarray of atoms
Ordered: solid-lower entropy
Disordered:gas-high entropy
Potential has less entropy than kinetic
Predictability of the movement of particles
First Chain
• The following energy transformation
chain stems off of radiant energy
• First of two chains resulting from sun
Solar
•
•
•
•
Sun’s rays melts snow, radiant energy
Entropy is increased water, from a solid to a
liquid
Reaction of hydrogen being fused together
in a nuclear reaction
Sun melting snow is thermal
Hydroelectricity
•
•
Gravitational potential energy water stored in
water pushing against dam
Turbines in dam extract electrical energy from
high pressure
How it Works
Flow of water makes blades
on turbine spin
This rotates a spindle in the
turbine, which leads into the
generator
Then energy is transferred
into electrical energy
Electricity in Action
•
•
Electricity from dam used to power electric
hybrid car
Energy within rechargeable battery, electrical
and chemical energy stored
•
•
•
Pistons apply mechanical energy
Run by batteries, but more directly move car
Same pistons can power electromagnetic
engines, which are magnetic as well as
electric
Second Chain
• The following energy transfer chain also
begins with the sun's nuclear fusion
process
• Tree grows off of radiant energy, solar
from sun
• Tree falls, gravitational energy
• Same tree is caught by a forest fire,
sparked by thermal energy
•
•
•
Tree burning, chemical
Increase in entropy
Ashes are blown by kinetic wind
Wind
• Wind blows windmill, kinetic
• Windmill pumps water, using electrical
power
Windmills produce energy much like
hydropower plants do
• Water is heated by thermal energy
• Water is changed to steam, also
thermal
• Increase of entropy, liquid to gas
• Steam directed through turbine to
power electric generator, compressed,
mechanical energy
• The generator runs propellors of a large
ship
Fan blade on a rotor, which is spun by
rising steam
Rotary motion runs a generator