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WorksheetsMagnetism & Electricity
Total questions: 24
Worksheet time: 45mins
Name
Class
Date
1.
Four items are placed the same distance from the magnet. Which one of the objects will be the easiest for the magnet to pull?
a)
eraser
b)
iron nail
c)
aluminum can
d)
piece of paper
2.
Which best shows a complete circuit?
a)
F
b)
G
c)
H
d)
J
3.
Some students want to conduct an experiment to test electrical charges. They have some small pieces of paper and a plastic straw. Which activity will show an electrical charge between two materials?
a)
Rub the pieces of paper together and blow on them through the straw.
b)
Rub the straw on hair and hold it close to the pieces of paper.
c)
Wet the pieces of paper with the straw.
d)
Hold the pieces of paper over the straw.
4.
A student connected some wire to a battery and a small bulb to make a simple circuit. Energy from the battery is changed into electricity in the circuit. What type of energy is stored in the battery?
a)
chemical
b)
nuclear
c)
heat
d)
light
5.
Students made an electromagnet by wrapping a wire around an iron nail and attaching the wire to a battery as shown below. Which object will be attracted to the electromagnet?
a)
metal bar
b)
plastic fork
c)
ceramic mug
d)
wooden ruler
6.
A student has the following electromagnet. What can the student do to make the electromagnet stronger?
a)
The student can add more coils to the nail.
b)
The student can add a switch to the setup.
c)
The student can replace the nail with a longer nail.
d)
The student can replace the nail with a piece of wood.
7.
A student rubbed a balloon on her head. The student then held the electrically charged balloon over some small pieces of paper.
What will most likely happen to the small pieces of paper?
What will most likely happen to the small pieces of paper?
a)
The pieces will stick to the table.
b)
The pieces will scatter around the table.
c)
The pieces will be attracted to the balloon.
d)
The pieces will move away from the balloon.
8.
Which diagram shows a complete electrical circuit?
a)
F
b)
G
c)
H
d)
J
9.
A student stacked three magnets on each other. Which diagram shows the three magnets attracted to each other?
a)
A
b)
B
c)
C
d)
D
10.
What will happen when a balloon with a negative charge touches a wall with a positive charge?
a)
The balloon will bounce off the wall.
b)
The balloon will explode.
c)
The balloon will stick to the wall.
d)
The balloon will become positively charged.
11.
Which diagram below shows a closed circuit?
a)
F
b)
G
c)
H
d)
J
12.
Students build an electromagnet. Which object would be attracted to the electromagnet?
a)
A
b)
B
c)
C
d)
D
13.
Which diagram most likely shows a circuit that will light the bulb?
a)
F
b)
G
c)
H
d)
J
14.
If an electromagnet receives more current, it ________________
a)
becomes stronger.
b)
becomes weaker.
c)
does not charge.
d)
turns off.
15.
Which diagram shows magnets that will repel each other?
a)
F
b)
G
c)
H
d)
J
16.
Electrical current cannot flow through __________________.
a)
a closed circuit.
b)
an open circuit.
c)
a series circuit.
d)
a parallel circuit.
17.
Each picture shows a battery, a bulb, and a switch. In which picture will the bulb light when the switch is closed?
a)
F
b)
G
c)
H
d)
J
18.
What would happen if you took one bulb out of a string of bulbs in a series circuit?
a)
The circuit would be closed.
b)
It would not change the circuit.
c)
You would create a short circuit.
d)
None of the other bulbs would light.
19.
Mrs. Dominique has a string of holiday lights that are connected in parallel circuit. What is true about these lights?
a)
If one light on the string goes out, all the others will remain lighted.
b)
If one light goes out, all the lights on the string will go out.
c)
If one light goes out, the circuit will remain closed.
d)
There is only one path for electric current to flow.
20.
Which diagram shows magnets that attract each other?
a)
A
b)
B
c)
C
d)
D
21.
Five light bulbs are connected to one D-cell battery. When one bulb burns out, the others continue to shine. The bulbs are part of ________________
a)
a parallel circuit.
b)
a series circuit.
c)
an open circuit.
d)
a circuit breaker.
22.
A loudspeaker uses electromagnets to _________________
a)
turn electrical energy into. sound
b)
turn electrical energy into light.
c)
turn motion into electrical energy.
d)
turn sound into electrical energy.
23.
Matter is made up of tiny particles called __________________________.
a)
neutrons
b)
electrons
c)
protons
d)
atoms
24.
Electrons have a __________________________ charge.
a)
negative
b)
positive
c)
neutral
d)
atom
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