Download File - Lanier Bureau of Investigation

Study Guide
Electromagnetic Review
Magnetic and
Define
Electric circuit - a continuous flow of electrical charges
caused by the motion of electrons, expressed in amps
Magnetic field - the area around a magnet in which
magnetic forces act
Magnetic force - the repelling or attraction of a
magnetic
Static electricity
an object
- the buildup of electric charges on
Electrical conduction – a method of charging an object
when electrons move from one object to another by
touch
Electrical induction – a method of charging an object
that occurs when charges in an uncharged object are
rearranged without direct contact from a charged
object.
Permanent magnet – are made from materials hard to
magnetize to keep their magnetic properties better.
Temporary magnet – are made from materials that are
easy to magnetize but tend to lose their magnetic
properties
Generator – a device that uses electromagnetic
induction to convert kinetic energy into electrical
energy
Electric force – the push or pull from the repelling or
attraction of opposite charges
Electromagnet - a magnet that consists of a solenoid
wrapped around an iron core.
1. What is the Law of Electrical Charges? Like
charges repel and opposite charges attract
2. How does this relate to magnetism? Like poles
repel and opposite poles attract
3. Draw two magnets that experience a repulsive
force.
4. Draw two magnets that experience an
attractive force.
5.
Draw a bar magnet with its magnetic field.
6. Where are magnets the strongest?
At the poles
7. How can you increase the power of an
electromagnet?
Add a stronger battery, add more loops around the
iron core or have a bigger iron core.
8. Draw a magnet and surrounded by compasses.
Make sure you label the compasses correctly based
on their location to the magnet.
9. Draw the Earth. Draw a compass next to it and
label the north and south pole of the compass.
Which way does the compass point?