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Magnetic Energy

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by

Emily Lynch

on 11 November 2014

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Transcript of Magnetic Energy

Magnetic Potental Energy
Quick Overview
A magnet attracts magnetic materials (iron, nickel and cobalt).
It has a north and a south pole. The north and south attract to each other but similar poles repel each other.
Every magnet has an invisible region around it called a magnetic field. Magnetic fields apply forces on other magnets and magnetic materials. They do not have to touch for the force to occur.
When a magnetic material comes inside the magnetic field of a permanent magnet, it becomes a temporary magnet and in turn exerts magnetic energy on other magnetic materials when they come inside its magnetic field. Magnetic fields are measured in Teslas.
Electromagnetism
Vocabulary
Potential Energy: the stored energy of an object.
Vector: Having qualities of magnitude and direction which is represented by an arrow in the direction, the direction and magnitude are relative.
Scalar: Possessing only qualities of magnitude.
Magnitude: size and dimensions
Dipole: a pair of electric point charges or magnetic poles of equal magnitude and opposite signs, separated by an infinitesimal (rather small) distance


By: Emily Lynch, Rhiannon Bryk, and Dylan Coble
The properties of electric and magnetic energy are combined in an electromagnet. An electromagnet is produced when a copper wire is wrapped around a soft magnet and the magnet spins around within it. It produces an electric current because copper is magnetic.
https://www.khanacademy.org/science/physics/electricity-and-magnetism
http://dictionary.reference.com/browse/vectors
http://www.kineticenergys.com/potential-energy/
youtube.com
Bibliography
Hoverboard from Back to the Future II

Real life hoverboard!
Videos
Now for some experiments!
Lets take
these
magnets. They both have a small amount of equal mass. The bigger the amount of mass, the more magnetic force. These don't have a lot of mass, so they're easier to pull apart and pust together. But these two magnets, which have a lot of mass, are harder to pull apart and push together. (nearly impossible to push together)
Now, lets see if we can get the magnet to levitate like in the movie clip and hoverboard.
Review
Hope you payed attention, because this is where it shows.
1. Modified True False: The
more
mass the magnet has, the
less
magnetic potential energy.
2. Modified True or False:
Kinetic
energy is the energy stored inside an object.
3.What two types of energy are combined to create an electromagnet?
4. What is magnetic energy?
5. Bonus: Describe a vector (You must have the two key points to get full credit.)
Lines of magnetic force
What is magnetic Energy?
Magnetic energy is when a magnet or magnetic material comes within the range of a magnetic field of a different magnet and exerts a force causing it to move
Potential magnetic energy is the stored energy and how much potential the magnet has to move depending on its placement in comparrison to the magnetic field. (magnetic energy min demo)
Think!

Why were we not able to
get it to "levitate"?
Uses/Examples of Magnetic Energy
Electromagnetism
Electric motor -> Electric Tooth brush-> fan -> heater ->
The Hover Board
Turbines at the Three Gorges Dam

Can YOU think of other examples?



Examples and Uses of Magnetic Energy
Full transcript