What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1....
Transcript of What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1....
![Page 1: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/1.jpg)
![Page 2: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/2.jpg)
What is energy?Ability to do work (change)
![Page 3: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/3.jpg)
Remember the forms of energy!
1. Thermal Energy – motion of energy in the
particles of matter due to more/less heat.
(Heat energy = when thermal energy is transferred)
1. Radiant Energy – electromagnetic waves of light (Solar Energy = specifically from the Sun)
2. Chemical Energy – energy stored in matter
3. Electrical Energy – energy flowing in an electric
circuit.
4. Mechanical Energy – due to motion and position
1. Potential Energy – stored energy
2. Kinetic Energy – moving energy
![Page 4: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/4.jpg)
Types:
- ChemicalTypes:
- Thermal
- Heat
- Solar
- Electrical
- Radiant
![Page 5: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/5.jpg)
- Is stored energy = not in use
- Can’t see it, but it is there.
- Based on position/height or
composition (inside materials)
It is called potential energy because
it has the potential to be converted
into other forms of energy, such as
kinetic energy.
Potential Energy
![Page 6: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/6.jpg)
Potential Energy Examples:
1. Wound-Up Spring
2.Baseball Pitcher
(not released yet)
3. Holding a hammer high.
![Page 7: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/7.jpg)
The higher the object = the more the
potential energy
High PE
Low PE
What letter will the cart
have the most PE?
![Page 8: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/8.jpg)
The more mass an object has= the
more the potential energy
vs.
vs.
vs.
![Page 9: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/9.jpg)
More Examples of (Position) Potential
Energy:
4. Stretching a rubber band..-Stores energy
Water at the top of a waterfall..-Stores energy
Yo–Yo held in your
hand..-Stores energy because of position
Drawing a Bow…
-Stores energy because of position
![Page 10: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/10.jpg)
Chemical Energy is a type of
Potential Energy
• Energy is
stored in bonds
of chemicals
that make up
the substance.
• Energy can be
released, but
hasn’t been
yet.
![Page 11: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/11.jpg)
Chemical Examples:
• FUELS:
– Wood
– Coal
– Oil
– Gas
*Energy is
stored until
they are
burned.
![Page 12: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/12.jpg)
Chemical Examples:
– Food
– Batteries
– Candle wick
![Page 13: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/13.jpg)
Kinetic Energy
- Is based on movement.
- Can see it.
![Page 14: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/14.jpg)
Examples of Kinetic Energy
• Running
• Wood Burning
• Rock Falling
![Page 15: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/15.jpg)
More Examples of Kinetic
Energy• Shooting a rubber
band.
• Water falling over the fall.
• A Yo-Yo in motion.
• Releasing the arrow from the bow.
![Page 16: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/16.jpg)
Types of Kinetic Energy
• Thermal/Heat – particles in
matter move as heat is
added.
• Radiant/Solar –
electromagnetic waves move
through space to Earth
• Electrical – electrons move
through metal in a closed
circuit to provide power to
objects.
![Page 17: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/17.jpg)
Energy doesn’t always stay in
one form…it TRANSFORMS
• Occurs between
various types of
energy.
• Energy is never
lost.
• 1 energy form can
transform into 2
different forms.
![Page 18: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/18.jpg)
Law of Conservation of Energy
• “Energy can neither be
created nor destroyed, it just
changes forms.”
• This means that no energy is
ever “lost”!
• Energy is just transformed.
• Total amount of energy in =
total energy out
![Page 19: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/19.jpg)
![Page 20: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/20.jpg)
Potential Energy Converted to
Kinetic Energy…
When stored energy begins to move, the
object now transfers from potential energy
into kinetic energy.
![Page 21: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/21.jpg)
• Potential Energy: When you
look at your food and eat it
because it has the potential
to give you energy
• Kinetic Energy: When you
digest your food into usable
energy the chemicals in the
food are set into motion
Energy Transformation with Food
![Page 22: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/22.jpg)
Examples of transformations of
Potential to Kinetic Water behind a dam > water falling down.
![Page 23: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/23.jpg)
Examples of transformations of
Potential to Kinetic Book on high shelf> book falling down.
![Page 24: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/24.jpg)
Examples of transformations of
Kinetic to Potential
Water moving down a river > water stopping at a closed
dam.
![Page 25: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/25.jpg)
Examples of transformations of
Kinetic to Potential
Moving book up to a shelf > book sitting on a high shelf.
![Page 26: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/26.jpg)
Name the transformations…
![Page 27: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/27.jpg)
Don’t forget about friction…
• Friction generates heat
• This means…
Not all potential energy is
converted to
kinetic….some is also
transformed to thermal
energy.
• This makes objects stop
and transform back to
potential.
![Page 28: What is energy? - btms.fortmillschools.org · (Heat energy = when thermal energy is transferred) 1. Radiant Energy –electromagnetic waves of light (Solar Energy = specifically from](https://reader033.fdocuments.in/reader033/viewer/2022041820/5e5daabc138aab0da1251363/html5/thumbnails/28.jpg)
Energy Lesson Review• Energy is the ability to do
work.
• All forms of energy fall
under 2 categories:
Kinetic or Potential
• Potential = stored
• Kinetic = moving
• Energy cannot be created or destroyed.
• Energy is always being transformed.