Magnetism Flashcards
0
Q
_________ is the force that pushes apart or pulls magnets together.
A
Magnetism
1
Q
A bar magnets pull is strongest on the:
A
Poles
2
Q
Increasing the number of coils _________ the strength of an electromagnet
A
Increase
3
Q
An iron rod, electric current, and a ______ are needed to make an electromagnet
A
Coil of wire
4
Q
A needle of a compass always points _____.
A
North
5
Q
When an electromagnet is turned off, it is
A
No longer magnetic
6
Q
Electromagnets in motors are used to cause
A
Motion
7
Q
A generator needs ______ to make electricity
A
Motion
8
Q
Motors create _______.
A
Motion
9
Q
Earths magnetic poles cause compasses to point
A
North
10
Q
True or False:
Does Earth have a magnetic field?
A
True
11
Q
True or False:
An electromagnet is in a motor.
A
True
