NEW
Font size
S
M
L
XL
WorksheetsElectricity and Magnetism
Total questions: 10
Worksheet time: 15mins
Name
Class
Date
1.
Which of the following is NOT part of an electromagnet?
a)
Wire
b)
Iron
c)
Toothpick
d)
Power source
2.
Why are metals useful for making electrical wire?
a)
Metals do not bend.
b)
Metals hold much heat.
c)
Metals are insulators.
d)
Metals are conductors.
3.
Which of the following is shown in the picture?
a)
Electromagnet
b)
Electric generator
c)
Electric motor
d)
Transformer
4.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
5.
Type of current that flows in the same direction.
a)
Electrical current
b)
Alternating Current
c)
Direct Current
d)
Electromotive Force (EMF)
6.
The opposition to current flow. Any appliance that uses current will oppose current flow.
a)
Resistance
b)
Voltage
c)
Current
d)
Power
7.
2 ways to increase the magnetic force of an electro-magnet
a)
Increase the current flow, reduce the number of coils
b)
Increase the voltage, decrease the number of coils
c)
Increase the number of coils and the current flow
d)
Spread out the coils, replace iron core with rubber.
8.
Magnets are typically made of which materials?
a)
Silver, Gold, Platinum
b)
Iron, Nickel, Cobalt
c)
Aluminum, Foil, Titanium
d)
Nickel, Cadmium, Lithium
9.
Iron filings are stuck to the bottom of an electromagnet that is hanging in the air. Is there a way to make the filings fall from the electromagnet?
a)
no because an electromagnet is very strong
b)
yes by turning off the current in the coil
c)
yes by swinging an electromagnet in the air
d)
no because the filings are too light to be pulled down by gravity
10.
When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.
a)
parallel
b)
series
c)
open
d)
closed
Reset
