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Current Electricity

Total questions: 86

Worksheet time: 1hrs 3mins

Name
Class
Date
1.

What is voltage?

a)

the rate of flow of charge

b)

the difference in charge between 2 points

c)

the amount of available charge

2.

What is an electric current?

a)

a build up of electrons

b)

the difference in charge between 2 points

c)

the flow of electrons over a circuit

d)

the opposition to flow of electrons

3.

what is an electric cell?

a)

a device that converts mechanical energy into electrical energy

b)

a device that turns stored chemical energy into electrical energy

c)

a device that devours electrical energy

d)

a device that converts static electricity into mechanical energy

4.
An example of a conductor is :
a)
a glass paperweight
b)
a plastic cap
c)
a metal screw
d)
a wooden handle
5.
In a series circuit  with 4 bulbs:
a)
a switch is never used
b)
all of the bulbs become dimmer if another bulb is added
c)
There are many paths for electricity to take
d)
the remaining 3 bulbs stay lit if one burns out
6.
An example of an insulator is:
a)
iron
b)
silver
c)
copper wire
d)
rubber
7.
All wires used in electric circuits should be covered with:
a)
a colored material.
b)
a conducting material.
c)
an insulating material.
d)
none of these.
8.
What is the difference between a conductor and an insulator?
a)
An insulator allows electricity to flow through it easily and a conductor does not
b)
A conductor allows electricity to flow through it easily and an insulator does not.
c)
An insulator is magnetic and a conductor is not
d)
A conductor is magnetic and an insulator is not
9.
What happens to the brightness of the light bulbs in a series circuit when you add more lights.
a)
Each bulb gets dimmer
b)
Each bulb remains the same
c)
Half of the bulbs get dimmer
d)
Each bulb gets brighter
10.
What part of a circuit is this object?
a)
power source
b)
load
c)
pathway
d)
switch
11.
Insulator or Conductor?
STEEL
a)
Insulator
b)
Conductor
12.
Insulator or Conductor?
STYROFOAM
a)
Insulator
b)
Conductor
13.
A __________opens and closes a circuit?
a)
key
key
b)
magnet
c)
switch
d)
electromagnet
14.
What is the purpose of a switch?
a)
To open and close the circuit.
b)
To carry the electricity through the circuit.
c)
To make a fun clicking sound
d)
To supply the power to the circuit
15.
What are the components of a simple circuit?
a)
wires, switch, outlet
b)
battery, switch, motor
c)
wires, light bulb, motor
d)
wires, battery, light bulb
16.
Why are humans conductors?
a)
Humans are made of mostly water.
b)
Humans have a ton of metal in their bodies.
c)
Humans conduct the railroad.
d)
Humans are great at the electric slide.
17.
Is this circuit open or closed?
a)
Closed
b)
Open
18.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
19.
The flow of electricity in a circuit-
a)
current
b)
flow
c)
circuit
20.
____________ allows electricity to flow.
a)
A conductor
b)
An insulator
c)
A magnet
21.
When the switch is closed, the light
a)
comes on
b)
stays off
c)
burns out
22.
The plastic around the wire is
a)
conductor
b)
insulator
c)
decoration
23.
If the lights are on, the circuit is
a)
closed
b)
open
24.
If the lights are off, the circuit is
a)
closed
b)
open
25.
The flow of electricity requires a
a)
complete path
b)
incomplete path
c)
insulated current
26.
What is the difference between a conductor and an insulator?
a)
An insulator allows electricity to flow through it easily and a conductor does not
b)
A conductor allows electricity to flow through it easily and an insulator does not.
c)
An insulator is magnetic and a conductor is not
d)
A conductor is magnetic and an insulator is not
27.
What kind of energy is the electricity transferred into in a toaster?
a)
sound
b)
light
c)
heat
d)
light and heat
28.

All electricity is the result of electrical charge.

a)

True

b)

False

29.

Which two are the types of electrical charges? Choose 2 answers.

a)

Negative

b)

Right

c)

Positive

d)

Left

30.

What is static electricity?

a)

It flows in a wire.

b)

It is a build up of electrical charge.

31.

Which two pictures show static electricity? Choose 2.

a)
b)
c)
d)
32.

What type of electricity do we use everyday?

a)

Static electricity

b)

Electric current

33.

A _____________ is a path that is made of parts that work together to allow current to flow.

a)

Static electricity

b)

Circuit

c)

Insulator

34.

What is another name for the wires in a circuit?

a)

Conductor

b)

Load

c)

Power Source

35.
Is an eraser a conductor, insulator, or both?
a)
Conductor
b)
Insulator
c)
Both
36.
Is a paperclip a conductor, insulator, or both?
a)
Conductor
b)
Insulator
37.
Is a pencil a conductor, insulator, or both?
a)
Conductor
b)
Insulator
c)
Both
38.

Is a pair of scissors a conductor, insulator, or both?

a)

Conductor

b)

Insulator

c)

Both

39.

Does this diagram show a closed or open circuit?

a)

Closed

b)

Open

40.

Used to open or close a circuit

a)

insulator

b)

conductor

c)

switch

d)

terminal

41.

The steady flow of electrons between objects

a)

battery

b)

source

c)

static electricity

d)

current electricity

42.

the metal wire that glows in a light bulb

a)

filament

b)

glass

c)

support wires

d)

metal tip

43.

something that allows electricity to move easily through it

a)

source

b)

conductor

c)

closed switch

d)

insulator

44.

the positive and negative ends of a battery

a)

filament

b)

wires

c)

Duracell

d)

terminals

45.

Which of these refers to Static Electricity?

a)

Buildup of electrons

b)

found in a battery

c)

lightening

d)

stays in one place until it moves to another object

46.

Which of these refers to current electricity?

a)

is created by rubbing objects together

b)

needs a closed circuit to flow

c)

doesn't move

d)

needs a conductor

47.

Letter A

a)

support wires

b)

filament

c)

metal tip

d)

glass

48.

Letter B

a)

Wire attachment point

b)

glass

c)

coiled filaments

d)

support wires

49.

Letter C

a)

base

b)

filament

c)

Support Wires

d)

Wire attachment point

50.

Letter E

a)

Glass

b)

Coiled Filament

c)

Metal Tip

d)

Wire Attachment

51.

What is an electric current?

a)

a build up of electrons

b)

the difference in charge between 2 points

c)

the flow of electrons over a circuit

d)

the opposition to flow of electrons

52.

Connects objects to cells separately so there are 2 paths for electricity to flow

a)

series circuit

b)

parallel circuit

c)

terminals

d)

filament

53.

If too much electricity is flowing through a circuit wires heat up and can start a fire

a)

short circuit

b)

parallel circuit

c)

series circuit

d)

terminals

54.

A material where electricity does flow easily

a)

insulator

b)

conductor

c)

filament

d)

circuit

55.

When electricity flows- a current is moving

a)

static electricity

b)

parallel circuit

c)

current-electricity

d)

dishcharge

56.

electricity flows 1 way one path

a)

series circuit

b)

static electricity

c)

short circuit

d)

parallel circuit

57.

Made up of parts that work together to allow electricity to flow

a)

resistor

b)

cell

c)

circuit

d)

terminal

58.

Changes chemical energy into electrical energy

a)

resistor

b)

cell

c)

fuse

d)

terminal

59.

Measurement of how much current is flowing in a circuit

a)

amperes

b)

voltage

c)

charge

d)

terminal

60.

Build up of electrical charge on material -not flowing

a)

static electricity

b)

current electriciity

c)

series circuit

d)

parallel circuit

61.

What happens when you pull a bulb out of a series circuit

a)

electricity will find a different path rest of bulbs light

b)

the electricity will flow around and the other bulbs light up

c)

It will create a gap or open circuit- no bulbs light up

d)

the bulb will still light either way

62.

What happens when you pull a bulb out of a parallel circuit

a)

electricity has another path to follow- the rest of the bulbs will still light up

b)

none of the bulbs will light up you created an open circuit

c)

only every other bulb will light up

d)

the bulb you pulled out will still light

63.

Electricity is ____________________.

a)

the movement of the sun

b)

the movement of electrons

c)

the movement of the moon

d)

the movement of air

64.

When electrons move through a circuit ____________ electricity is created.

a)

current

b)

electron

c)

solar

d)

static

65.

When electricity passes through a light bulb it is changed to _______________________.

a)

motion energy

b)

light energy

c)

static electricity

d)

magnetic energy

66.

Which of these is the best example of electric energy being transformed into heat energy?

a)

lamp

b)

fan

c)

telephone

d)

toaster

67.

Which is the best example of electric energy being transformed into sound energy?

a)

toaster

b)

electric blanket

c)

television

d)

lamp

68.

Electricity is a form of energy that can be changed into other forms of energy, including __________, __________, __________, __________

a)

light, heat, sound, motion

b)

cooling, running, freezing, motion

c)

heat, air, tires, fans

69.

The flow of electricity is an _____________________.

a)

battery

b)

resistor

c)

electric current

70.

A ________________ circuit is a circuit in which electrical current can follow only one path.

a)

parallel

b)

series

c)

silver

d)

battery

71.

A complete pathway for the flow of electricity is called a ________________.

a)

circuit

b)

series

c)

parallel

d)

current

72.

In a series circuit, what will happen if the path for the electrical current is broken by a burned out bulb?

a)

The electrical current will stop fllowing and none of the bulbs will light up.

b)

The electrical current will continue flowing and the other bulbs will light up.

c)

The energy source will continue to move the electric charge through the circuit.

73.
Magnetism created by an electric current
a)
electricity
b)
electromagnetism
c)
wind energy
74.
Two batteries in a circuit make the lights in the circuit brighter than one battery.
a)
true
b)
false
75.
In a parallel circuit the current
a)
makes one circle
b)
stays in one path
c)
splits and goes through two components
76.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
77.
An example of a parallel circuit is
a)
the wiring in a house
b)
a flashlight
c)
a single circular path
78.

Electrical charge built up on the surface of an object is called _________________.


a)

static electricity

b)

current electricity

c)

lightning

d)

electrons

79.

What happens 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)

The doorknob sends millions of electrons into your finger

d)

our finger becomes negatively charged

80.

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)

lightning strike during a storm

d)

a light bulb coming on when a switch is turned on

81.

True or False,

Lighting is a form of static electricity.

a)

True

b)

False

82.

The 2 types Electricity are

a)

Static

b)

Current

c)

Static and Current

d)

Non of the above

83.

Electric charges that are alike _______ each other.

a)

Attract

b)

Repel

84.

Electric charges that are different _______ each other.

a)

Repel

b)

Attract

85.

What types of charges attract?

a)

Positive and Positive

b)

Positive and Neutral

c)

Negative and Neutral

d)

Positive and Negative

86.

Electricity is________

a)

the presence and flow of electrons in two directions.

b)

the presence and flow of electrons in one direction.

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