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Electricity And Magnetism Review Game
Test Description: Ch. 13
Instructions: Answer all questions to get your test result.
1) What are the three types of particles found in atoms?
A
protons, neutrons, magnitrons
B
protons, newtons, electricons
C
protons, electrons, neutrons
D
electrons, newtons, magnitrons
2) Which particles are the ones that move from one object to another?
A
newtons
B
neutrons
C
protons
D
electrons
3) What produces a spark of electricity when you run across carpet and touch a door knob?
A
There are twice as many positive charges as negative charges.
B
Positive and negative charges are balanced
C
Positive and negative charges are unbalanced.
D
Positive charges repel negative charges.
4) Which two objects will repel each other?
A
a negatively charged balloon and a neutral balloon
B
a positively charged balloon and a positively charged balloon
C
a negatively charged balloon and a positively charged balloon
D
a neutral balloon and a neutral piece of paper
5) How does an electric current flow?
A
It travels quickly and the longest pathway.
B
It travels slowly.
C
It travels quickly and the shortest pathway
D
It stays in one place.
6) Why are plastic and rubber used to cover electric wires?
A
They are good at passing electricity from one wire to another.
B
They are good insulators and prevent electricity from coming in contact with other things.
C
They are good conductors of electricity.
D
They speed up the flow of electrons.
7) How do you allow electric charges to flow in a circuit?
A
You disconnect the wires.
B
You open the circuit.
C
You break the circuit.
D
You close the circuit.
8) In a series circuit, when one of the bulbs burn out, the rest of the bulbs will ____.
A
All of the bulbs light up except the one that burns out
B
All of the bulbs light up.
C
none of the bulbs light up
D
only one bulb lights up
9) In a parallel circuit, electrical current has ______________ paths to follow.
A
two or more
B
only one
C
none
D
I have no idea
10) What happens when the switch is open in an electric circuit?
A
The electric charges flow through the loop.
B
The wires heat up.
C
A resistor heats up a light.
D
The electric charges stop flowing.
11) Where is the magnetic field located for all magnets?
A
It is only around a magnet's center.
B
It is only around a magnet's poles.
C
It goes in all directions around a magnet.
D
It goes out in one direction from a magnet.
12) Which surrounds Earth?
A
electric field
B
magnetic current
C
electric current
D
magnetic field
13) Where is the magnetic field strongest on a magnet?
A
at both poles of a magnet
B
at the center of a magnet
C
at the south pole of a magnet
D
at the north pole of a magnet
14) What happens when you break a magnet into two pieces?
A
Each piece will have a north and a south pole.
B
Both magnets will lose their magnetism.
C
Each piece will have a north seeking pole and a neutral pole.
D
One piece will have the north-seeking pole and the other piece will have the south-seeking pole.
15) What is Earth's outer core made of that makes scientists think that Earth is like a huge magnet?
A
hot melted copper
B
harden rock
C
hot melted iron
D
hot lava
16) What makes an electromagnet different from a regular magnet?
A
An electromagnet affects a compass needle.
B
An electromagnet has two poles.
C
An electromagnet can be turned off and on.
D
An electromagnet has a magnetic field.
17) What happens when the number of coils in an electromagnet is increased?
A
The electromagnet becomes stronger.
B
The core of the electromagnet becomes smaller.
C
The core of the electromagnet becomes larger.
D
The core of the electromagnet becomes weaker.
18) What happens when electric current in an electromagnet is stopped?
A
The wire loses its magnetism.
B
The electromagnet becomes stronger.
C
The electrical energy becomes stronger.
D
The wires becomes magnetized.
19) What is an important part of every generator?
A
chemical energy
B
a source of falling water
C
a magnet
D
solar energy
20) Which of the following is NOT a source of power for generating electricity?
A
wind
B
falling water
C
nuclear energy
D
light bulbs
*select an answer for all questions
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