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WorksheetsElectricity and Magnetism Review # 2
Total questions: 36
Worksheet time: 57mins
Name
Class
Date
1.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
2.
The flow of electricity in a circuit-
a)
current
b)
flow
c)
circuit
3.
____________ allows electricity to flow.
a)
A conductor
b)
An insulator
c)
A magnet
4.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
5.
____________ stops the flow of electricity.
a)
A conductor
b)
An insulator
c)
A magnet
6.
When the switch is closed, the light
a)
comes on
b)
stays off
c)
burns out
7.
If the lights are off, the circuit is
a)
closed
b)
open
8.
In a parallel circuit the current
a)
makes one circle
b)
stays in one path
c)
splits and goes through two components
9.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
10.
An example of a parallel circuit is
a)
the wiring in a house
b)
a flashlight
c)
a single circular path
11.
Which of the following is shown?
a)
electromagnet
b)
electric motor
c)
electric generator
d)
transformer
12.
The diagram below shows an electrical circuit. This circuit is a series circuit because
a)
it has three light bulbs.
b)
the same current flows through all three light
bulbs.
c)
it uses a single battery.
d)
the current is divided between the light bulbs.
13.
When electric current flows through the metal filament of a light bulb, electrical energy is converted to
a)
heat energy only.
b)
heat and light energy.
c)
light and motion energy.
d)
light energy only.
14.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
15.
What are the two poles of a magnet called?
a)
North and South
b)
East and West
c)
Up and Down
d)
Red and Blue
16.
In most electrical circuits, the pathway is made of:
a)
Wood
b)
Plastic
c)
Metal
d)
Static
17.
What is one problem with using a series circuit?
a)
It has a lot of series.
b)
If one light goes down, they all go down!
c)
It doesn't work properly.
d)
There are no problems.
18.
What is a benefit of using a parallel circuit?
a)
It gets confusing.
b)
There are no problems.
c)
If one light goes out, it does not affect the others.
d)
If one light goes out, they all go out.
19.
wood is a _____?
a)
conductor
b)
insulator
20.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
21.
A material in which electrons are not able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
22.
In the following diagram, the lightbulb is:
a)
Pathway
b)
Energy source
c)
The conductor
d)
The energy receiver
23.
Two wires carrying electricity can create a spark if they come too close together. This spark can start a fire. Wires carrying electricity are usually covered with plastic to keep them from starting a fire. Why does the plastic keep electricity from starting a fire?
a)
Plastic is a good insulator.
b)
Plastic can melt when heated.
c)
Plastic is softer than wire.
d)
Plastic conducts electricity.
24.
Opposite charges _______________ each other.
a)
Repel
b)
Attract
25.
Which of these best completes the circuit?
a)
rubber band
b)
metal nail
c)
leather shoelace
d)
wooden toothpick
26.
Electrical lights will not come on unless their electrical circuit is a --
a)
parallel circuit
b)
series circuit
c)
closed circuit
d)
short circuit
27.
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
28.
A class prepared some electrical 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
29.
What material would be safest to use as an insulator to cover electrical wires?
a)
rubber
b)
tin
c)
aluminum
d)
water
30.
This instrument can be used to see if materials conduct electricity. Which of these groups contains items that could all conduct electricity to complete the circuit?
a)
rubber ball, plastic comb, nail
b)
paper clip, penny, screw
c)
cork, dollar bill, tweezers
d)
pencil, eraser, spoon
31.
Bits of paper are attracted to the surface of this balloon. What attracts the paper pieces to the balloon?
a)
Friction
b)
Static Electricity
c)
Magnetism
d)
Potential Energy
32.
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
33.
In this picture, the iron filings show the shape of the magnetic --
a)
axis
b)
core
c)
field
d)
pole
34.
This image represents what type of circuit?
a)
open
b)
closed
c)
series
d)
parallel
35.
Will the light bulb in this circuit light and why/why not?
a)
yes, because it has two batteries
b)
no, because the switch is open
c)
yes, because it is in a circuit
d)
no, because the bulb is burned out
36.
Current is referred to as:
a)
flow of electricity
b)
circuits
c)
flow of electrons
d)
batteries
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