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Electricity Review

Total questions: 47

Worksheet time: 35mins

Name
Class
Date
1.

If two charges repel each other, the two charges must be

a)

Positive and neutral

b)

Positive and negative

c)

Neutral and positive

d)

Negative and negative

2.
An object becomes charged when the atoms in the object gain or lose
a)
electrons
b)
protons
c)
neutrons
d)
all of the above
3.
If you rub a glass rod with a piece of silk, the rod becomes positively charged. This means that
a)
friction destroyed electrons in the rod.
b)
the silk has become negatively charged.
c)
protons have moved to the rod.
d)
glass attracts more protons.
4.
Objects that have opposite charges
a)
are attracted to each other, and the force between the objects pulls them together.
b)
are attracted to each other, and the force between the objects pushes them apart.
c)
are repelled by each other, and the force between the objects pulls them together.
d)
are repelled by each other, and the force between the objects pushes them apart.  
5.
When you pull a cotton sweater off your skin, electrons are transferred from the ___________________ (cotton, skin) to the __________________ (cotton, skin). As a result, your body acquires a ___________ (+ , -) charge and the cotton sweater acquires a ___________ (+ , -) charge.
a)
skin, cotton, +, -
b)
cotton, skin, +, -
c)
skin , cotton, -, +
d)
cotton, skin, -, +
6.
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
7.
Which of the following is caused by static electricity?
a)
a stove getting hot when it is turned on
b)
a magnet being attracted to a refrigerator
c)
a lightning strike during a storm
d)
a light bulb coming on when a switch is turned on
8.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
9.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
10.

What can happen when you touch a metal doorknob after rubbing your shoes on the carpet?

a)

The doorknob sends a burst of electric current into your body

b)

Millions of electrons go from your finger into the doorknob

c)

Our negatively charged body becomes positively charged

d)

Our finger becomes negatively charged

11.
Static electricity is:
a)
electricity flowing in a wire
b)
the buildup of electric charges on an object
c)
when protons move between objects
12.
Two objects with LIKE static charges will
a)
attract each other
b)
even out in the end
c)
repel each other
d)
cause a spark
13.

The 3rd prong on a plug for some electrical appliances is for which reason?

a)

So you can't put the plug in upside down

b)

So if you lose one cord, you can't simply replace it with another

c)

To help separate the electrons and the protons

d)

To easily transfer extra electrons to the ground

14.

The words electron and electricity come from the greek word for:

a)

gold

b)

jade

c)

amber

d)

elephant

15.

The safest place to be in a thunderstorm is:

a)

inside a car

b)

standing on top of a metal box

c)

in a tent

d)

in a swimming pool

16.

Mr. Anady rubbed two balloons against his wool sweater for 30 seconds each. 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.

17.

The accumulation of excess electric charge on an object is called

a)

Static electricity

b)

Electric discharge

c)

Resistance

d)

Current electricity

18.
What charge does a proton have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
19.
What charge does an electron have?
a)
negative (-)
b)
positive (+)
c)
neutral or no charge (0)
20.
What is the major difference between static electricity and current electricity?
a)
Current electricity involves a continuous flow of neutrons; static electricity is a sudden transfer of protons
b)
Current electricity can be deadly; static electricity is almost always safe
c)
In current electricity, there's a single transfer of electrons; in static electricity, there's a steady flow of electrons
d)
Current electricity involves a flow of electrons; static electricity involves a single transfer of electrons
21.
Which of the following is caused by static electricity?
a)
a stove getting hot when it is turned on
b)
a magnet being attracted to a refrigerator
c)
a lightning strike during a storm
d)
a light bulb coming on when a switch is turned on
22.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
23.
The girl's hair and the comb are attracting  one another.  The hair and the comb have
a)
opposite charges
b)
like charges
24.

A force that pushes objects away from each other

a)

electrical charge

b)

attraction

c)

force

d)

repulsion

25.

A force that draws or pulls objects toward each other

a)

static

b)

repulsion

c)

attraction

d)

magnetism

26.

The word "static" means the same thing as

a)

transfer

b)

build up

c)

stay

d)

move away from

27.
Which is an example of static dischage?
a)
a motor
b)
lightning
c)
thunder
d)
insulators
28.
Is it possible to CREATE electrons?
a)
Yes, that's what static electricity is.
b)
No, you can move them, but they are never created or distroyed.
c)
Sometimes, it depends on the voltage.
d)
Sometimes, it depends on the element.
29.

Which of the following are Non-Renewable energy resources? (Check all that apply.)

a)

coal

b)

wind

c)

solar

d)

nuclear

30.

One advantage of solar and wind power over fossil fuels is that

a)

wind and solar are presently much less expensive than fossil fuels.

b)

wind and solar come from natural processes and fossil fuels do not.

c)

wind and solar are nonrenewable resources and fossil fuel are renewable.

d)

wind and solar are continuously renewable and fossil fuels take millions of years to be formed.

31.

Renewable or Nonrenewable: Coal

a)

Renewable

b)

Nonrenewable

32.

Renewable or Nonrenewable: Natural Gas

a)

nonrenewable

b)

renewable

33.

Renewable or Nonrenewable: Oil

a)

Nonrenewable

b)

Renewable

34.

Renewable or Nonrenewable: Sunlight

a)

Renewable

b)

Nonrenewable

35.

Renewable or Nonrenewable: Water

a)

Nonrenewable

b)

Renewable

36.

Renewable or Nonrenewable: Wind

a)

Renewable

b)

Nonrenewable

37.

This energy is from moving air.

a)

Wind Energy

b)

Geothermal Energy

c)

Fossil Fuel Energy

d)

Biofuel

38.

This is electrical energy that comes from the force of energy of moving water. It is the most widely used type of renewable energy.

a)

Coal

b)

Hydroelectric Power

c)

Wind Energy

d)

Geothermal Energy

39.

This is the energy generated in the Earth's core and produces steam and hot water.

a)

Solar Energy

b)

Hydroelectric Power

c)

Fossil Fuels

d)

Geothermal

40.

What are non-renewable resources?

a)

resources that are sustainable

b)

resources that we can make more of

c)

resources that will run out

d)

resources that are easily made

41.

What is biomass

a)

a renewable energy

b)

plants and animals

c)

rocks and minerals

d)

anything found in nature

42.

What is coal made of?

a)

renewable resources

b)

nuclear power fusion

c)

nuclear fission

d)

plants that died millions of years ago

43.

Coal has a high level of which greenhouse gas?

a)

Carbon

b)

Oxygen

c)

Hydrogen

d)

Nitrogen

44.

What is a natural resource?

a)

Material from the Earth that people use for their needs.

b)

A place hidden in the mountains.

c)

An object made from natural things.

45.

Geothermal energy uses heat from ____ to produce electricity.

a)

the earth

b)

coal

c)

oil

d)

natural gas

46.

Coal is burned to heat water so that the _______ can turn turbines.

a)

fire

b)

steam

c)

water

d)

heat

47.

The land upstream of a dam may be flooded.

a)

True

b)

False

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