TRANSFORM

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STUDY GUIDE FOR DCA 6
TRANSFORM fromunprepared to prepared! DONT
LETENERGYTRANSFORMATIONS BEAT YOU!
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is transformed into
Electrical Energy
Motor

• Mechanical
• Energy

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is transformed into
Electrical Energy
Sound energy
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Renewable, Nonrenewable, or Inexhaustible?
Source of Energy
Hydroelectric Energy

• Renewable

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Review SOURCES of ENERGY
RENEWABLE
Can be replenished or replaced within a
usable amount of time
Trees/Plants (Biomass) Heating, Electricity,
Food,Transportation Water (Hydroelectric) Droug
htsmay cause unavailability Oxygen
Hydrogen Transportation (Fuel Cells)


O

H
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is transformed into
Chemical Energy Stored in the battery
Know this well!

• Electrical Energy
• (as electrons are produced)

is transformed into
Light Energy (Radiant)
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Oil (petroleum), natural gas, coal are examples
of nonrenewable resources. There is a LIMITED
SUPPLY and it takes millions of years to
replenish or replace too long to be useful to
us Another name for them is..
fossil fuels
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Electrical Energy
Thermal (Heat) Energy
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Renewable, Nonrenewable, or Inexhaustible?
Source of Energy
Biomass Energy from Trees/Plants

• Renewable

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transforms
In science, we dont just say that energychanges
from one form to another, we say that it
or
converts
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• Energy can NOT be
• lost or destroyed
• it can only be changed into a
• different form of energy!!!!

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• Any form of energy can be transformed into any
  other form.

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Conduction
Convection
Radiation
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Conduction
The transfer of thermal energy through direct
contact between particles of matter. (Examples
Heating a pot on the stove or a metal spoon
placed in a cup of hot chocolate)
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ELECTROMAGNET

• Click on the picture below hyperlink to a website
  in which you can investigate other ways to affect
  the strength of an electromagnet
• http//www.fossweb.com/modules3-6/MagnetismandE
  lectricity/activities/electromagnet.html

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• Some advantages and disadvantages of wind energy.
• Wind is free and will not run out so the cost is
  in building the wind turbine.
• Wind power generation does not create greenhouse
  gases
• There are very few safety risks with wind
  turbines. (EXCEPT TO BIRDS!)
• We can only use wind turbines in areas where
  there is a lot of wind. Sometimes there may be
  days where there is little wind. Just like we
  cannot use solar panels without the Sun, we
  cannot produce electricity from little or no
  wind..

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Solar energy is Inexhaustible since it uses the
sun. Must have the Sun to work.
Link
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into
, Mechanical Energy of falling
water
A generator inside a dam transforms
Generator

• Electrical Energy
• (that can be used to run a machine)

Water Flow
Turbine
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Nonrenewable Resources

• Cannot be replaced in a short amount of time.
• Made from dead plants and animals millions of
  years ago.
• Once we use them up, they are gone forever.
• We are using them faster than nature can replace
  them.

We will run out of fossil fuels sooner or
later!!
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is transformed into
Chemical Energy
Know this well!

• Radiant (Light) Energy

Thermal (Heat) Energy
and
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Renewable Resources

• Things that can be replaced in a relatively short
  amount of time. We must be wise about how we use
  these items! We could overuse, pollute, or
  destroy them too fast for them to be replaced.

EXAMPLES
Trees, plants, animals, water
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Convection

• Heat is transferred by the movement of currents
  within a liquid or gas. Heat rises, cools and
  drops then heats up again and rises again.

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Sound Energy
Electrical Energy
Mechanical Energy
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is transformed into
Electrical Energy
Heat Energy
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Radiation

• The transfer of energy (heat) by electromagnetic
  waves. It does not require matter to transfer its
  heat.

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is transformed into
Chemical Energy
of a battery

• Light (Radiant) Energy

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VOCABULARY WORDS FOR DCA 6

• 1. DEPLETED - no longer sufficient "supplies are
  low" "our funds are depleted"
• 2. ELECTROMAGNET - A device consisting of a coil
  of insulated wire wrapped around an iron core
  that becomes magnetized when an electric current
  flows through the wire.
• 3. DISADVANTAGE - An unfavorable condition or
  circumstance. To put at a disadvantage hinder or
  harm (hazardous).
• 4. CONVECTION The transfer of heat by movement
  of currents.
• 5. CONDUCTION The transfer of heat through
  direct physical contact.
• 6. RADIATION The direct transfer of energy by
  electromagnetic waves.
• 7. HAZARDOUS - involving or causing danger or
  risk liable to hurt or harm.
• 8. INFERENCE - the reasoning involved in drawing
  a conclusion or making a logical judgment on the
  basis of circumstantial evidence and prior
  conclusions rather than on the basis of direct
  observation.
• 9. HYDROELECTRIC - Using the power of water
  currents to generate electric power. Generally,
  hydroelectric power is created by directing water
  flow through a turbine, where the water causes
  fans to turn, creating the torque needed to drive
  an electric generator. (Renewable)
• 10. FOSSIL FUELS - An energy-rich substance (such
  as petroleum, coal, or natural gas) derived from
  the accumulated remains of ancient plants and
  animals and used as fuel. (Non-renewable energy
  source)