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Worksheets4/18-4/21 Electricity & Magnetism
Total questions: 15
Worksheet time: 17mins
Name
Class
Date
1.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
2.
Bar magnets have two poles. What are they?
a)
north and south
b)
west and east
c)
positive and negative
d)
right and wrong
3.
Like/same poles __________ each other while unlike/opposite poles ___________ each other.
a)
repel, attract
b)
attract, repel
c)
love, hate
d)
oppose, connect
4.
A balloon has a negative charge. A glass rod has a positive charge. What will happen when the glass rod is brought close to the balloon?
a)
The balloon will be attracted to the rod.
b)
The balloon will be repelled by the rod.
c)
The balloon will remain in place.
d)
The balloon will spin in circles.
5.
These are iron filings and bar magnets on a sheet of paper. Where is the magnetic field the strongest?
a)
1
b)
2
c)
3
d)
4
6.
Where is earth's magnetic field the strongest?
a)
1 - near Africa
b)
2 - by the equator
c)
3 - near Europe
d)
4 - at the poles
7.
Which of the following can work as an energy source?
a)
Battery
b)
Light bulb
c)
Wire
d)
All of them
8.
What are the two types of electric circuits?
a)
Parallel circuits & Series circuits
b)
Parallel circuits & Electric circuits
c)
Electric circuits & Series circuits
d)
All of them
9.
Look at the drawing. Which best describes the switch?
a)
Closed
b)
Open
c)
Parallel
d)
Series
10.
Does this diagram represent a series or parallel circuit?
a)
series circuit (1 loop)
b)
parallel circuit (more than 1 loop)
11.
This circuit has more than one loop. When one light goes out, the others stay on.
a)
closed circuit
b)
series circuit
c)
parallel circuit
d)
open circuit
12.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Switch the wires on the battery.
d)
Remove all the coils and the nail.
13.
What kind of magnet can be turned on and off?
a)
refrigerator magnet
b)
electromagnet
c)
magnetite
d)
iron
14.
How are electromagnets different from regular magnets?
a)
A. They can be turned on and off
b)
B. Their poles can be reversed
c)
C. Their strength can be changed
d)
D. All of the above
15.
What device uses an electromagnet?
a)
speakers in headphones
b)
a light bulb
c)
scissors
d)
a phone charger
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