WorksheetsSOL 4.3 Electricity
Total questions: 25
Worksheet time: 25mins
Name
Class
Date
1.
To make an electromagnet, a conductor should be coiled around —
a)
a glass tube
b)
an iron nail
c)
a roll of paper
d)
a wooden stick
2.
Early scientists most likely saw a discharge of electricity for the first time when observing a —
a)
waterfall
b)
rainbow
c)
lightning storm
d)
volcano erupting
3.
Which energy transformation most likely occurs in a steam iron?
a)
Electrical energy changes to heat energy.
b)
Electrical energy changes to sound energy
c)
Mechanical energy changes to heat energy.
d)
Mechanical energy changes to light energy
4.
In this picture, the iron filings show the shape of the magnetic —
a)
axis
b)
core
c)
field
d)
pole
5.
A fifth-grade class constructed this circuit. Which of these objects most likely made the light glow when connected to points X and Y?
a)
Plastic straw
b)
Cotton string
c)
Aluminum foil
d)
Rubber eraser
6.
Which item is designed to change electrical energy into heat energy?
a)
alarm clock
b)
hand dryer
c)
fan
d)
telephone
7.
Bits of paper are attracted to the surface of this balloon. What attracts the paper pieces to the balloon?
a)
Friction
b)
Magnetism
c)
Potential energy
d)
Static electricity
8.
Which of these correctly shows what happens when two magnets are placed side by side?
a)
F
b)
G
c)
H
d)
J
9.
The electrician in this picture is wearing rubber gloves for protection. The purpose of the rubber gloves is to —
a)
keep the electrician dry
b)
create an electrical circuit
c)
produce electricity
d)
insulate the electrician
10.
An electric motor is designed to turn electrical energy into —
a)
solar energy
b)
potential energy
c)
static electricity
d)
mechanical energy
11.
The energy used to move most bicycles is an example of what type of energy?
a)
Electrical
b)
Mechanical
c)
Chemical
d)
Nuclear
12.
Which of these can most easily produce magnetic fields?
a)
Sunlight
b)
Wind
c)
Electricity
d)
Flowing water
13.
Benjamin Franklin conducted this famous experiment that showed lightning was —
a)
a movement of air molecules
b)
a magnetic field
c)
an electrical discharge
d)
a glowing chemical
14.
Many electrical wires are wrapped with a plastic coating because plastic is —
a)
less expensive than steel
b)
more dense than copper
c)
able to keep its shape
d)
a good insulator
15.
Electric lights will not come on unless their electrical circuit is a —
a)
parallel circuit
b)
series circuit
c)
closed circuit
d)
short circuit
16.
A class prepared some electric circuits using battery, connecting wires, and three light bulbs. Which of these circuits can make the three bulbs light?
a)
A
b)
B
c)
C
d)
D
17.
A bar magnet is placed on a table, and a sheet of blank paper is placed over the magnet. What could be sprinkled on the paper to show the magnetic field of the bar magnet?
a)
Salt
b)
Iron filings
c)
. Sand
d)
Soil
18.
The picture shows a comb that was used on a cold, dry day. Which of these cause the bits of paper to be attracted to the comb?
a)
Magnetic forces
b)
Chemical
reactions
c)
Static electricity
d)
Heat differences
19.
Which form of energy is best shown in this picture?
a)
Mechanical
b)
Electrical
c)
Chemical
d)
Nuclear
20.
Benjamin Franklin discovered the form of energy produced by lightning. Experiments with lightning killed many people before he discovered that lightning is a form of —
a)
gravity
b)
water
c)
magnetism
d)
electricity
21.
Which of these materials is a good conductor of electricity?
a)
Rubber
b)
Glass
c)
Metal
d)
Newspaper
22.
What material would be safest to use as an insulator to cover electrical wires?
a)
Aluminum
b)
Rubber
c)
Tin
d)
Water
23.
Copper wire is often wrapped in plastic. Plastic material is a good —
a)
electromagnet
b)
insulator
c)
circuit
d)
current
24.
The magnetic fields of any magnet are greatest —
a)
around the middle
b)
around the poles
c)
around only the south pole
d)
around only the north pole
25.
When in operation, this tool transforms electrical energy mostly into —
a)
chemical energy
b)
solar energy
c)
sound energy
d)
mechanical
energy
100 %
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