Download TCAP Review 2013 – Page 9 – Electromagnetism

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Transcript
What are 3 things that can cause an object to be demagnetized? (p. 427
Name: ________________________________________________________
– Losing Alignment)
1)
Define a magnet. (p. 424)
2)
3)
Name 4 types of magnets. (p. 428)
What kind of poles does a magnet have? (p. 425)
1) F
1)
2) E
2)
3) T
Draw the magnetic force around a magnet. (p. 426)
4) P
Draw the figure of the Earth’s magnetic poles on p. 429.
What causes magnetism? (p. 426)
With the electrons in the domain, how must the spin of the electrons
align in order for an object to be magnetic? (p. 427)
Define electromagnetism (p.433)
MAGNETISM FROM ELECTRICITY
What instrument do you use to measure electric current? (p. 437)
Define solenoid. (p. 433)
ELECTRICITY FROM MAGNETISM
Draw the solenoid on p. 433.
Electromagnetic induction is caused when
______________________________________________________
__________________________________________________(p.
Is this a magnetic field?
439)
List the factors that affect an induced current. (p.439)
How can the strength of the magnetic field increase for this solenoid?
(p. 433)
1)
2)
An electromagnet is made up of a solenoid wrapped around an iron core.
When there is no current to the wire, the electromagnet is “turned off”.
Give an example of electromagnetism. (p. 435)
a)
b)
c)
d)