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Electricity Review

Total questions: 69

Worksheet time: 59mins

Name
Class
Date
1.

The continuous flow of electrons is ______

a)

Current

b)

Static electricity

c)

Voltage

d)

Resistance

2.

The amount of "push" available to move electrons is _____

a)

Current

b)

Resistance

c)

Voltage

d)

Static Electricity

3.

The one time "jump" of electrons to distribute charge

a)

Current

b)

Voltage

c)

Static electricity

d)

Resistance

4.

The opposition to electron movement

a)

Voltage

b)

Static electricity

c)

current

d)

Resistance

5.

If a bulb is added between the battery and the switch, ____

a)

The bulbs get brighter

b)

The bulbs get dimmer

c)

The bulb brightness stays the same

d)

All the bulbs go out

6.

If you add another bulb in parallel,_____

a)

The bulbs get brighter

b)

The bulbs get dimmer

c)

The bulb brightness stays the same

d)

All the bulbs will go out

7.

If the top bulb goes out,

a)

All the bulbs go out

b)

The other bulbs get dimmer

c)

There is no effect on the other bulbs

d)

The other bulbs get brighter

8.

If the middle bulb goes out, _______

a)

The other bulb gets brighter

b)

The other bulb goes out

c)

The other bulb's brightness stays the same

d)

The other bulb gets dimmer

9.

Devices in a parallel circuit receive

a)

equal current but different voltage

b)

equal voltage but different current

c)

equal voltage and equal current

d)

different voltage and different current

10.

Devices in a series circuit receive

a)

Equal current but different voltage

b)

Equal voltage but different current

c)

Equal voltage and equal current

d)

different voltage and different current

11.

If something is positively charged it

a)

Has an excess of electrons

b)

is lacking protons

c)

is lacking electrons

d)

has an excess of protons

12.

In a parallel circuit

a)

All devices receive the same current

b)

There are 2 or more paths for current to flow

c)

All devices always go on and off together

d)

Each device operates with a different voltage

13.

A light switch

a)

is a resistor

b)

opens and closes a circuit

c)

changes voltage

d)

generates electricity

14.

Electrons flow only in

a)

series ciruits

b)

parallel circuits

c)

closed circuits

d)

open circuits

15.
I am the negatively charged particle in an atom. I can move freely.  I can be released, shared, or “stolen” from an atom.  Who am I?
a)
proton
b)
neutron
c)
electron
16.
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.
17.
The smallest unit of an element is
a)
An electron
b)
A proton
c)
A neutron
d)
An atom
18.
Lightning rods attract lightning.
a)
True
b)
False
19.
Walking across a carpet is an example of charge being transferred by
a)
friction.
b)
induction.
c)
contact.
d)
static electricity
20.
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
21.

What charge does an electron have?

a)

negative (-)

b)

positive (+)

c)

neutral or no charge (0)

22.
Electric charges that are alike _______ each other.
a)
Attract
b)
Repel
23.
What method of static charging is shown in this picture
a)
Polarization
b)
Friction
c)
Induction
d)
Conduction
24.

If an object has more positive than negative charges, its electrical charge is...

a)

positive

b)

negative

c)

neutral or no charge

d)

opposite

25.

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.

26.
Atoms may have protons which carry a...
a)
positive charge
b)
negative charge
c)
neutral or no charge
d)
opposite
27.
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
28.

If an object has more negative charges than positive charges, its electrical charge is...

a)

positive

b)

negative

c)

neutral or no charge

d)

opposite

29.
One example of static electricity is...
a)
rain
b)
thunder
c)
lightning
30.
Atoms may have neutrons which have...
a)
positive charge
b)
negative charge
c)
no charge
d)
opposite charge
31.
Which of the following an insulator?
a)
copper
b)
wood
c)
silver
d)
salt water
32.
The girl's hair and the comb are attracting  one another.  The hair and the comb have
a)
opposite charges
b)
like charges
33.
Two things with opposite charges will
a)
attract one another.
b)
repel one another.
34.
A quick flow of electrons from a negatively charged object to a positive or neutral object
a)
electric field
b)
static discharge
c)
conductor
d)
valence electron
35.
The space around charged particles that exerts a force on other charged particles.
a)
electric field
b)
static discharge
c)
conductor
d)
valence electron
36.
A material that allows electrons to pass easily
a)
insulator
b)
conductor
c)
electric field
d)
static discharge
37.
The process of transferring charge between objects by touching or rubbing
a)
charging by induction
b)
static discharge
c)
charging by contact
d)
proton
38.
A material that does not allow electrons to move through it easily
a)
insulator
b)
conductor
c)
charging by contact
d)
electric field
39.
The unit of measurement for electric current
a)
voltage
b)
current
c)
ampere
d)
discharge
40.
These three batteries have a total voltage of 9V. What would the new voltage be if you connected another 3V battery?
a)
27V
b)
6V
c)
3V
d)
12V
41.
Rubbing a plastic ruler with fur will transfer charge from one object to another. What will the charge of the ruler be?
a)
positive
b)
negative
c)
neutral
42.
An object becomes negatively charged by
a)
losing protons
b)
gaining electrons
c)
losing electrons
d)
gaining protons
43.
An object becomes positively charged by
a)
losing protons
b)
gaining electrons
c)
losing electrons
d)
gaining protons
44.
What kind of circuit is pictured?
a)
series
b)
parallel
c)
open
d)
lighted
45.
What is the law that means that charges can be transferred by not lost. 
a)
law of conservation of charge
b)
law of conservation of electrons
c)
law of conservation of mass
d)
law of conservation of earth
46.
What kind of circuit is this?
a)
parallel
b)
series
c)
resistor
d)
open
47.

Which of these items is NOT an insulator?

a)

Glass

b)

Rubber

c)

Aluminum

d)

Silicone

48.

The purpose of grounding is:

a)

To punish teenagers

b)

To complete a circuit

c)

To neutralize a charged object

d)

To polarize a conductor

49.

There are ___ kinds of charge: __________

a)

3; positive, negative, neutral

b)

3; positive, nuclear, negative

c)

2; negative, positive

d)

2; negative, neutral

50.

1 KiloWatt is equal to:

a)

10 watts

b)

100 watts

c)

1000 watts

d)

10 000 watts

51.

If two objects are strongly attracted to each other they must...

a)

Carry the same charge

b)

Carry opposite charges

c)

Carry no charge

d)

Carry current

52.

Positive charges are fixed (do not move).

a)

True

b)

False

c)

Neither true nor false.

53.

Electric current is created by...

a)

Moving electrons

b)

The sun

c)

Moving atoms

d)

Conductors

54.

The two types of electric current are

a)

Alternating Current and Direct Current

b)

Direct Current and Indirect Current

c)

Flat Current and Wavy Current

d)

Alternating Current and Different Current

55.

Which kind of current is found in our outlets?

a)

AC

b)

DC

c)

both

56.

How does resistance affect current?

a)

more resistance = more current

b)

more resistance = less current

c)

resistance does not affect current

57.

This does not allow electrons to flow and does not conduct electricity

a)

insulator

b)

conductor

c)

semiconductor

d)

electrolyte

58.

Which is NOT an insulator

a)
b)
c)
d)
59.
What is the BEST example of a conductor? 
a)
A wooden block
b)
A ceramic mug
c)
A glass cup
d)
A metal bowl
60.

How much the material prevents electrons from moving through it is

a)

Current

b)

Resistance

c)

Voltage

d)

Power

61.

This allows electrons to flow and conducts electricity

a)

insulator

b)

conductor

c)

semiconductor

d)

electrolyte

62.
1.  A battery is also now as a __________ .
a)
series
b)
dry cell
c)
switch
63.
1.  A _________ is a device that opens or closes a circuit.
a)
series
b)
parallel
c)
dry cell
d)
switch
64.
1.  An __________________ is a path along which negative charges can flow.
a)
open
b)
dry cell
c)
electric circuit
65.
1.  In a _________ circuit there is only ONE path for an electric current.
a)
series
b)
parallel
c)
open
d)
dry cell
66.
A balloon with a negative charge ______________ a balloon with a negative charge.
a)
repels
b)
attracts
67.
1.  The buildup of electric charges is called _____________ .
a)
static electricity
b)
parallel
c)
electric circuit
d)
dry cell
68.
A dry cell, a light bulb, and some wires are connected in a circuit, and the bulb lights up. Which part of the circuit is the source of electrical energy? 
a)
dry cell
b)
light bulb
c)
wires
69.
A dry cell, a light bulb, and some wires are connected in a circuit, and the bulb lights up. Is the circuit open or closed?
a)
open
b)
closed

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