Potential and Kinetic
Energy doesn’t just “appear” it comes from
something or some other form
Energy cannot be made
Energy cannot be destroyed or “used up”
Energy can just change from one form to
another.
Kinetic -> Potential -> Kinetic
Energy cannot be created or destroyed, only
changed in form.
https://www.youtube.com/watch?v=8GLtFNaiMH8
No- just converting it from one form to another
I get my kinetic energy from potential energy I
have stored- from the food that I ate.
Heat energy (in a toaster)
Sound energy (in a radio)
Light energy (in a bulb)
Mechanical energy (on a ride)
Energy is the
ability to make
things do work
Energy has no
mass and no
volume
Energy can be
found in 7
different forms
https://www.youtube.com/watch?v=pb6DcMEYq4
Energy due to the position or motion of an
object
http://www.watchknowlearn.org/Video.aspx?Vi
deoID=29750&CategoryID=5956
Wil e coyote
Energy of vibrating air molecules
https://www.youtube.com/watch?v=Ude8pPjawKI
https://www.youtube.com/watch?v=ynqzeIYA7Iw
https://www.youtube.com/watch?v=gpCquUW
qaYw
skip the journey song, go further in to see some other music on the ruben’s tube
https://www.youtube.com/watch?v=2awbKQ2D
LRE
2-D flat ruben’s table
The energy used to hold atoms in a molecule
together, such as in food or fuel.
Chemical bonds are broken during a chemical
reaction (burning, rusting, digestion)
What organelle in our cells helps break the
chemical bonds of food molecules so we can
have energy?
Mitochondria
Muscles tissue
The movement of electrons through matter.
Electricity is a form of electrical energy.
Energy carried by light, x-rays, microwaves
Visible light is a form of electromagnetic energy.
Each color of light (Roy G Biv) represents a
different amount of electromagnetic energy.
Increasing Energy
The vibration of particles of matter.
More vibrations = more heat energy (hotter)
Fewer vibrations = less heat energy (cooler)
The energy that holds protons and neutrons
together in the nucleus of an atom
The nucleus of an atom is the source of nuclear
energy.
When the nucleus splits (fission), nuclear energy is
released in the form of heat energy and light
energy.
Nuclear energy is also released when nuclei
collide at high speeds and join (fusion).
Nuclear E -> thermal E -> mechanical E->
electrical E
The sun’s energy
is produced from
a nuclear fusion
reaction in which
hydrogen nuclei
fuse to form
helium nuclei.
https://www.youtube.com/watch?v=igf96
TS3Els
kinetic (wind) ->
mechanical (blades
spinning) ->
electrical
Chemical -> thermal/light/
sound
Chemical (batteries)
-> electrical ->
light/heat (bulb)
Chemical --Mechanical
(legs)-> mechanical (wheels)
Electrical (plug) ->
radiant
(microwaves)->
thermal (heat)
chemical
Give an example where the following energy
changes would take place:
• Electrical to Thermal
• Chemical to Thermal
• Electrical to Mechanical