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WorksheetsElectricity (Electrical Charge / Electrical Current)
Total questions: 15
Worksheet time: 30mins
Name
Class
Date
1.
If an object has the same number of positive and negative charges, its electrical charge is...
a)
positive
b)
negative
c)
neutral or no charge
d)
opposite
2.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
3.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
4.
Static electricity is
a)
The balance of electrical charge on an object
b)
The imbalance of electrical charge on an object
c)
The discharge of electrical charge
d)
The build up of protons in the nucleus of an atom
5.
True or False
Like charges repel
Like charges repel
a)
True
b)
False
6.
True or False
A positively charged object has lost electrons
A positively charged object has lost electrons
a)
True
b)
False
7.
True or False
A negatively charged object has lost protons
A negatively charged object has lost protons
a)
True
b)
False
8.
Charge separation in clouds is one way
a)
that freezing rain occurs
b)
that lightning occurs
c)
that low pressure system occurs
d)
that a tornado occurs
9.
Why is electrical wiring usually made from copper?
a)
Because copper is shiny
b)
Because copper conducts electricity
c)
Because copper is not magnetic
d)
Because copper insulate electricity
10.
Electric current is the flow of:
a)
electrons
b)
protons
c)
neutrons
d)
none of these
11.
If a person touches a live wire, he or she gets a severe:
a)
circuit
b)
electric shock
c)
overloading
d)
Earth
12.
Lightning occurs because ___.
a)
the negative charges at the bottom of clouds are attracted to the positive charges on the ground.
b)
the positive charges at the bottom of clouds are attracted to the negative charges on the ground.
c)
the positive and negative charges inside clouds are attracted to each other
d)
All of these reasons are correct.
13.
Find the odd-one out:
All of the Following are good conductors except?
Copper
Aluminium
Iron
Wood
a)
Copper
b)
Aluminium
c)
Iron
d)
Wood
14.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
15.
Why do lightning rods need to be grounded?
a)
They don't. The rod is enough to protect the home
b)
to create a path for the electricity to get to the ground
c)
to direct the electricity to the power grid of the house
d)
to deflect the electricity back into the cloud
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