Understanding Forms of Energy and Energy Transformations

 
Forms of Energy
 
Add these notes to your graphic organizer.
Refer to textbook chapter 9, section 1 for
additional information
 
a. Explain energy transformation in terms of
the Law of Conservation of Energy.
 
S8P2. Students will be familiar with the forms
and transformations of energy.
The law of conservation of energy states
that:
 
Energy is 
never
 
destroyed
Energy is 
never
 
created
Energy may be 
transformed
 or
converted
 from one form to another
Energy is constantly changing 
forms
b. Explain the relationship between
potential and kinetic energy.
 
How about a little music?
 
kinetic energy
 
potential energy
 
kinetic energy
 
potential energy
 
kinetic energy
 
potential energy
 
Kinetic energy
 
Potential energy
 
Kinetic Energy
 
  Energy of motion
  Depends on
  speed
  mass
  More speed = more KE
  More mass = more KE
 
Potential Energy—Stored energy
Energy of position, shape, or condition
 
  More weight = more PE
  More height = more PE
 
 
pendulum
 
girl on a swing
 
 
 
Potential energy is found in objects that want to
bounce back into their natural shape when they
are stretched, squished, or turned.
 
sling shot
 
c. Compare and contrast the different forms
of energy (heat, light, electricity, mechanical
motion, sound) and their characteristics.
 
Forms of Energy include:
 
 
Mechanical (Motion) Energy
—total of potential
and kinetic energy
energy caused by objects that are 
moving
 
 
 
 
Greatest 
potential
 energy at top (slowest/stopped)
 
 
Greatest 
kinetic
 energy at the
bottom while going the fastest
 
Watch the juggler
 
Michael Davis at Ford's Theater
This theater is in Washington, D.C.
President
 Abraham Lincoln was assassinated
while watching a
 show from one of the upper
balcony seats in this very same theater.
 
President Ronald Reagan and his wife are
e
njoying this show.
 
http://www.youtube.com/embed/n6mbW-jMtrY?feature=player_detailpage
 
 
Thermal energy (heat)
—the total motion of the
atoms and molecules within a substance
 
  
ex. Atoms move faster in hot water than ice
 
 
Hot water-faster
 
Ice-slower
 
 
Gravitational potential energy
—energy stored
because of where it is placed (higher = more PE)
(Depends on weight and height)
 
Chemical energy 
—energy stored in the bonds
of atoms and molecules (released during
chemical changes)
 
 
 
 
Electrical energy
—energy of moving electrons
 
 
 
Sound energy
—energy caused by an object’s
vibrations (It travels in waves but cannot move
through empty space.)
 
 
 
Radiant energy (light)
—produced by the
vibrations of electrically charged particles that
travel in waves. Can travel through a vacuum
(empty space)
 
ex. Sunlight, X-rays, lamps, see p.636
 
 
 
 
Nuclear energy
—stored energy that comes
from the nucleus of an atom.
Released when atoms are split apart (fission) or
joined together (fusion)
 
ex. nuclear
       power
       plants
 
Now you’ve got them all.
  Study them tonight!
 
 
Resource websites:
 
http://www.eia.doe.gov/kids/energy.cfm?page=about_forms_of_energy-basics
 
http://www.bbc.co.uk/schools/ks2bitesize/science/physical_processes/
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Exploring the different forms of energy and how they can be transformed according to the Law of Conservation of Energy. The relationship between potential and kinetic energy is explained with clear examples, highlighting how energy can be stored or in motion. Potential energy is described in objects ready to return to their original state.


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  1. Forms of Energy Add these notes to your graphic organizer. Refer to textbook chapter 9, section 1 for additional information

  2. What do we need to know? S8P2. Students will be familiar with the forms and transformations of energy. a. Explain energy transformation in terms of the Law of Conservation of Energy.

  3. The law of conservation of energy states that: Energy is never destroyed Energy is never created Energy may be transformed or converted from one form to another Energy is constantly changing forms

  4. What ELSE do we need to know? b. Explain the relationship between potential and kinetic energy. http://www.animationplayhouse.com/dancing_giraffees.gif How about a little music?

  5. http://www.animationplayhouse.com/dancing_giraffees.gif http://t2.gstatic.com/images?q=tbn:ANd9GcQJwbgxstvCrGaLAxqyO_kL2YshpWsI1znpU-hD1zf-8BQqNEPo kinetic energy potential energy

  6. potential energy kinetic energy http://www.animationplayhouse.com/dancing_giraffees.gif

  7. kinetic energy http://www.animationplayhouse.com/dancing_giraffees.gif potential energy

  8. Kinetic energy Potential energy

  9. Kinetic Energy Energy of motion Depends on speed mass More speed = more KE More mass = more KE

  10. Potential EnergyStored energy Energy of position, shape, or condition More weight = more PE More height = more PE girl on a swing pendulum

  11. Potential energy is found in objects that want to bounce back into their natural shape when they are stretched, squished, or turned. sling shot

  12. c. Compare and contrast the different forms of energy (heat, light, electricity, mechanical motion, sound) and their characteristics. Forms of Energy include:

  13. Mechanical (Motion) Energytotal of potential and kinetic energy energy caused by objects that are moving

  14. Greatest potential energy at top (slowest/stopped) Greatest kinetic energy at the bottom while going the fastest

  15. Watch the juggler Michael Davis at Ford's Theater This theater is in Washington, D.C. President Abraham Lincoln was assassinated while watching a show from one of the upper balcony seats in this very same theater. President Ronald Reagan and his wife are enjoying this show. http://www.youtube.com/embed/n6mbW-jMtrY?feature=player_detailpage

  16. Thermal energy (heat)the total motion of the atoms and molecules within a substance ex. Atoms move faster in hot water than ice Hot water-faster Ice-slower

  17. Gravitational potential energyenergy stored because of where it is placed (higher = more PE) (Depends on weight and height)

  18. Chemical energy energy stored in the bonds of atoms and molecules (released during chemical changes) http://myzerowaste.com/wp-content/uploads/2009/12/batteries.jpg

  19. Electrical energyenergy of moving electrons

  20. Sound energyenergy caused by an objects vibrations (It travels in waves but cannot move through empty space.)

  21. Radiant energy (light)produced by the vibrations of electrically charged particles that travel in waves. Can travel through a vacuum (empty space) ex. Sunlight, X-rays, lamps, see p.636 http://mrmackenzie.co.uk/wp-content/uploads/2010/11/Hand.jpg http://api.ning.com/files/15fqs3JP5yL9n2FbooDsBT1OjHY8FTTPxrUcOhmLDqKbejq6ysDXsGjC-8Ph45p2JAr9INTRBvmkAo6eke8WJ3UFeWoUt640/sun.gif http://dubeysantiques.files.wordpress.com/2011/11/lighting_lamps_japanese_satsuma_pair.jpg

  22. Nuclear energystored energy that comes from the nucleus of an atom. Released when atoms are split apart (fission) or joined together (fusion) ex. nuclear power plants

  23. Now youve got them all. Study them tonight!

  24. Resource websites: http://www.eia.doe.gov/kids/energy.cfm?page=about_forms_of_energy-basics http://www.bbc.co.uk/schools/ks2bitesize/science/physical_processes/

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