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Worksheetselectricity
Total questions: 52
Worksheet time: 45mins
Name
Class
Date
1.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
2.
The buildup of charges on an object is called:
a)
positive charge
b)
static charge
c)
negative charge
d)
static discharge
3.
The accumulation of excess electric charge on an object is called
a)
Static electricity
b)
Electric discharge
c)
Resistance
d)
Circuit
4.
If the two charges represented in the figure were brought near each other, they would
a)
attract each other.
b)
repel each other.
c)
cause static discharge.
d)
have no affect on each other
5.
You know that the object connected to the wires is a conductor because:
a)
The light bulb is glowing bright.
b)
It's a complete circuit.
c)
It's a closed circuit.
d)
The object is shiny.
6.
Walking across a carpet is an example of charge being transferred by
a)
friction.
b)
induction.
c)
contact.
d)
static electricity
7.
Electric charges that are alike _______ each other.
a)
Attract
b)
Repel
8.
Ms Jo Jo rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?
a)
The balloons will repel each other.
b)
The balloons will attract each other.
c)
The balloons will become positively (+) charged.
d)
The balloons will pop.
9.
The difference between attract and repel is that to attract is to pull something closer and repel is to push something away.
a)
True
b)
False
10.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
11.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
12.
If a substance has a higher number of electrons than protons on its surface, what type of charge does it have?
a)
A positive charge.
b)
A negative charge.
c)
A neutral charge
d)
No charge at all
13.
What is a conductor?
a)
Material that does NOT transfer energy.
b)
Materials that are connected to circuits.
c)
Materials that transfer energy.
d)
Materials that
14.
An insulator is a material that:
a)
Transfers thermal and electrical energy
b)
Transfers electrical energy and slows thermal energy
c)
Slows electrical energy and allows thermal energy to pass
d)
Slows thermal and electrical energy from transfering
15.
A great conductor of energy is:
a)
wood
b)
plastic
c)
metal
d)
cloth
16.
The plastic covering is there to:
a)
Provide a conductor for electrical energy to flow.
b)
Provide an insulator so that electrical energy will not pass outside of the wires.
c)
Provide a conductor so that electrical energy can NOT flow.
d)
Provide an insulator so that electrical energy can flow.
17.
The metal copper is there to:
a)
Provide a conductor for energy to flow from one place to another.
b)
Provide an insulator for energy to flow from one place to another.
c)
Provide an insulator to slow the flow of energy.
d)
Provide a conductor so slow the flow of energy.
18.
Melody wants to complete her circuit with a conductor. What object is the best option?
a)
rubber
b)
a penny
c)
card board
d)
plastic spoon
19.
Sean knows that the light bulb will turn on because the circuit:
a)
includes an insulator.
b)
is an open circuit.
c)
makes a complete path.
d)
includes a battery.
20.
Which is NOT an insulator.
a)
Wool
b)
Plastic
c)
Copper
d)
Glass
21.
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.
22.
A conductor allows energy to easily pass by.
a)
True
b)
False
23.
This is a picture of a simple electromagnet. How can the electromagnet be made stronger?
a)
Add more coils of wire to the nail.
b)
Use a smaller battery.
c)
Reverse the poles of the magnet.
d)
Remove all the coils and the nail.
24.
The picture shows an electrical circuit. This circuit is a series circuit because:
a)
It has 3 light bulbs.
b)
The same current flows through all three light bulbs.
c)
It uses a single battery.
d)
The electrical current is divided between the three light bulbs.
25.
What is # 3 pointing to in the diagram?
a)
base contact
b)
button contact
c)
support wires
d)
filament
26.
all matter is made of what
a)
energy
b)
atoms
c)
electrons
d)
compounds
27.
What is electric current?
a)
A flow of electric charges
b)
static electricity
c)
two objects repelling from each other
d)
batteries
28.
A path that is made for an electric current is?
a)
Static electricity
b)
conductor
c)
A circuit
d)
resistor
29.
A conductor is?
a)
material that current can pass through easily
b)
material that current cannot pass through easily
c)
magnet
d)
electric current
30.
Insulator is?
a)
material that current can pass through easily
b)
material that current cannot pass through easily
c)
magnet
d)
static electricity
31.
Series circuit is
a)
a circuit with more than one path for current to travel
b)
has magnets to help current to travel
c)
a circuit that has only one path for the current to travel
d)
does not allow electric current to travel through it
32.
Parallel circuits are
a)
a circuit that has only one path for current to travel
b)
has more than one path for current to travel
c)
a circuit that does not allow electricity to travel through it
d)
magnets that cause electric current
33.
What kind of circuit is this?
a)
parallel
b)
series
c)
open
d)
chris barton
34.
what kind of circuit is this?
a)
parallel
b)
series
c)
chris barton
d)
open
35.
this circuit is .....?
a)
open
b)
parallel
c)
closed
d)
chris barton
36.
this circuit is...?
a)
open
b)
closed
c)
parallel
d)
all of the above
37.
wood is a _____?
a)
conductor
b)
insulator
38.
water is a______?
a)
conductor
b)
insulator
39.
brass is a _____?
a)
insulator
b)
conductor
40.
Yarn is a ______?
a)
conductor
b)
insulator
41.
rubber is an ____?
a)
conductor
b)
insulator
42.
Challenge Question!
What powers an electric circuit?
What powers an electric circuit?
a)
Switch
b)
Battery
c)
Light bulb
43.
Unlike poles of a magnet will
a)
Repel
b)
Attract
44.
Like poles of a magnet will
a)
Repel
b)
Attract
45.
Where is the force of attraction the strongest on a magnet?
a)
at the poles
b)
in the middle
c)
above the magnet
d)
below the magnet
46.
What happens when two bar magnets repel each other?
a)
The poles of the magnets pull toward each other.
b)
The poles of the magnets push away from each other.
c)
The centers of the magnets pull toward each other.
d)
The centers o the magnets push away from each other.
47.
What will happen when these magnets are brought close together?
a)
They will attract each other.
b)
They will repel each other.
c)
Both magnets will turn to the left
d)
Both magnets will turn to the right
48.
What kind of magnet can be turned on and off?
a)
refridgerator magnet
b)
electromagnet
c)
magnetite
d)
iron
49.
What happens when a wire is wound into a coil around an iron core in an electromagnet?
a)
the wire exolodes
b)
you get electricuted
c)
the magnetic field becomes stronger
d)
the magnetic field becomes weaker
50.
While electric current is flowing through a wire, what surrounds the wire?
a)
a magnetic field
b)
a glowing light
c)
neutrons
d)
protons
51.
How do you make an electromagnet?
a)
wrap a battery in wire and connect it to an iron nail.
b)
wrap a wire with another wire and connect it to an iron nail.
c)
wrap an iron nail in wire and connect it to a power source.
d)
wrap an iron nail in wire and connect it to another iron nail.
52.
What are three ways to make an electromagnet stronger?
a)
1. add more coils of wire around the iron core
2. add more electricity flowing through the wire
3. wrap a thinner wire around the core
2. add more electricity flowing through the wire
3. wrap a thinner wire around the core
b)
1. add less coils of wire around the iron core
2. add more electricity flowing through the wire
3. wrap a thinker wire around the core
2. add more electricity flowing through the wire
3. wrap a thinker wire around the core
c)
1. add more coils of wire around the iron core
2. add less electricity flowing through the wire
3. wrap a thicker wire around the core
2. add less electricity flowing through the wire
3. wrap a thicker wire around the core
d)
1. add more coils of wire around the iron core
2. add more electricity flowing through the wire
3. wrap a thicker wire around the core.
2. add more electricity flowing through the wire
3. wrap a thicker wire around the core.
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