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WorksheetsElectricity and Magnetism
Total questions: 20
Worksheet time: 32mins
Name
Class
Date
1.
A particle that carries a negative electric charge is called a(n) ______.
a)
neutron
b)
atom
c)
proton
d)
electron
2.
What do the lines around this magnet represent?
a)
North Pole
b)
South Pole
c)
Magnetic Declination
d)
Magnetic Field
3.
As the distance between two magnets increases (they get farther apart), the force between them:
a)
Increases
b)
Decreases
c)
Stays the Same
4.
If you cut a magnet in half, what happens to the poles?
a)
One half gets the North Pole, the other half gets the South Pole
b)
Both halves get only a North Pole
c)
Both halves get only a South Pole
d)
Both halves get a North pole and a South Pole
5.
What is responsible for the Magnetic Field around Earth?
a)
The Earth's crust
b)
The Earth's molton iron core
c)
The Earth's mantel
d)
The Sun
6.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
7.
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)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
8.
Magnets on refrigerator cannot be turned off. Which type of magnets they belong?
a)
electromagnets
b)
battery
c)
permanent magnets
d)
copper wire
9.
Which electromagnet is stronger?
a)
A
b)
B
10.
Which of these circuits will not allow the lightbulb to light up
a)
b)
c)
d)
11.
Select BOTH of the parallel circuits.
There are two correct answers!
a)
b)
c)
d)
12.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
13.
____________ stops the flow of electricity.
a)
A conductor
b)
An insulator
14.
The unit for current is the
a)
Volt
b)
Ohm
c)
Amp
15.
What is the unit for resistance?
a)
Volts
b)
Amperes
c)
Ohms
16.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
17.
What voltage is needed to cause a 2amps current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
18.
What voltage is needed to cause a 50amps current flow through a 10Ω resistor?
a)
15V
b)
500V
c)
500 kV
d)
0.2V
19.
Which formulas represents Ohm's law?
a)
V=IR
b)
F=MA
c)
Fg=MG
20.
Which type of current comes from a battery?
a)
alternating current (AC)
b)
direct current (DC)
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