wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

Electrical Circuit

Total questions: 95

Worksheet time: 4hrs 27mins

Name
Class
Date
1.

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

2.

Which of the following materials is an electrical conductor?

a)

Plastic spoon

b)

Silver-colored plastic spoon

c)

copper spoon

d)

wooden spoon

3.

What is a circuit that only has ONE path for electricity to flow?

a)

series circuit

b)

closed circuit

c)

parallel circuit

d)

light bulb

4.

What is a circuit with several paths for electricity to flow?

a)

conductor

b)

series circuit

c)

parallel circuit

d)

open circuit

5.
Choose the correct sentence.
a)
This circuit will work because it is an open circuit.
b)
This circuit will work because it is a closed circuit.
c)
This circuit will NOT work because it is an open circuit.
d)
This circuit will NOT work because it is a closed circuit.
6.

Why is electrical wiring usually are covered with a layer of plastic?

a)

To make it look pretty

b)

To help electricity flow along the wire

c)

To make it safe

d)

To add more energy

7.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will stay on
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
8.
Will this configuration of a complete circuit and light a bulb?
a)
yes
b)
no
9.

How many light bulbs would be ON with this complete circuit?

(a)  

10.

How many light bulbs would be ON if the wire of this circuit was cut where the scissors are?

(a)  

11.

How many light bulbs would be ON if the wire of this circuit was cut where the scissors are?

a)

1

b)

3

c)

2

d)

0

12.

True or False: A wooden block would allow electricity to flow through it because wood is a great conductor of electricity.

a)

True

b)

False

13.
How much work is done if I use 3 Newtons of force to move an object 5 meters?
Formula: Work= force x distance
                  Joules= Newtons x meters
a)
15 Joules
b)
15 Newtons
c)
8 Joules
15.
If you replace the paper clip with a plastic spoon, what happens?
a)
The bulb doesn't light
b)
The bulb is dimmer
c)
The wires get hot
d)
There is no change
15.
If you replace the paper clip with a plastic spoon, what happens?
a)
The bulb doesn't light
b)
The bulb is dimmer
c)
The wires get hot
d)
There is no change
16.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
17.
Electricity is the flow of _________.
a)
Protons
b)
Neutrons
c)
Electrons
18.

What is the equivalent or total resistance (Re) across this circuit?

a)

3 kΩ

b)

10 kΩ

c)

13 kΩ

d)

18 kΩ

19.

How would the equivalent resistance be determined?

a)

1 / Req = (1/5) + (1/8) + (1/3) Ω

b)

120 Ω

c)

1.5189873 Ω

d)

1 / Req = (1/5) * (1/8) * (1/3) Ω

20.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
21.

The equivalent resistance in this circuit is  (a)   ohm

22.

the formula to find current when the values of V and R are known is

a)

I = V2R

b)

I = V/R

c)

I = R/V

d)

I=VR

23.

If a circuit has two resistors in series both are 4Ω, the total resistance of the circuit is (a)   ohm

24.

If a circuit has two resistors in parallel both are 4Ω, what is the total resistance of the circuit?

a)

1Ω

b)

2Ω

c)

4Ω

d)

8Ω

25.

in which circuit is the lamp brightest

a)

1

b)

2

c)

3

d)

All the same

26.

in which circuit is the lamp brightest

a)

1

b)

2

c)

3

d)

All the same

27.

Which resistor has the biggest voltage across it?

a)

2 Ω

b)

3 Ω

c)

4 Ω

d)

all have the same

28.

If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, the voltage difference across the light bulb is (a)   volt

29.
What is the total resistance (RT) across this circuit?
a)
3 kΩ
b)
10 kΩ
c)
13 kΩ
d)
16 kΩ
30.
The current going through the 45 ohm resistor is 
a)
0.05 amps
b)
0.2 amps
c)
0.1 amps
d)
5 amps
31.
The total current going through the battery of this circuit is
a)
0.35 amps
b)
0.0286 amps
c)
0 amps
d)
9 amps
32.
In a parallel circuit if one of the light bulbs burns out the rest _________.
a)
stop the flow of electricity
b)
 can still light up
c)
 will go out
d)
of the light bulbs burn out also
33.

You do 90 joules of work in 30 seconds. The power have you generated is (a)   watts

34.
You move an 8-newton weight five meters in 4 seconds. How much power have you generated?
a)
160 watts
b)
10 watts
c)
6.4 watts
d)
17 watts
35.
Which of the following would produce the most power?
a)
A mass of 10 kilograms lifted 10 meters in 10 seconds 
b)
A mass of 10 kilograms lifted 10 meters in 5 seconds
c)
A mass of 5 kilograms lifted 10 meters in 5 seconds
d)
A mass of 5 kilograms lifted 5 meters in 10 seconds
36.
Adding more bulbs to a parallel circuit will make each bulb burn less brightly.
a)
True
b)
False
37.
Adding more bulbs to a series circuit will make each bulb burn less brightly.
a)
True
b)
False
38.

If the cell provides 12 volts and there are four identical bulbs, each bulb will use (a)   volts.

39.
The voltage across each bulb is 9V.  What is the voltage across the cell?
a)
4.5
b)
9
c)
18
d)
27
40.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
41.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
42.
 A 13 Ω resistor has 0.050 A of current in it. What is the potential difference across the resistor?
a)
260 V
b)
0.65 V
c)
.004 V
d)
4 V
43.
A set of electric trains are powered by a 9V battery. What is the resistance of the trains if they draw 3.0 A of current? 
a)
27 Ω
b)
0.03 Ω
c)
2.7 Ω
d)
3 Ω
44.
This is the symbol for a _____?
a)
Lamp
b)
Water wheel
c)
Loudspeaker
d)
Motor
45.
How many Volts would it take to push 1 Amp through a resistance of 1 Ohm
a)
10 volts
b)
1 volt
c)
48 volts
d)
5 volts
46.
If the current through a circuit is 2 A and the resistance of a light bulb in the circuit is 10 Ohms, what is the voltage difference across the light bulb?
a)
5 V
b)
12 V
c)
0.2 V
d)
20 V
47.
What would the circuit resistance be if a 7.5 Amp draw was present with the engine running and the charging system producing 15 Volts
a)
15 Ohms
b)
4 Ohms
c)
0.3333 Ohms
d)
2 Ohms
48.

The table describes four different resistance wires.


They are all made from the same metal.


Which wire has the smallest resistance?

a)

A

b)

B

c)

C

d)

D

49.

Which symbols are used for the units of current and of resistance?

a)

A

b)

B

c)

C

d)

D

50.

The current in the wires of a circuit is 120.0 milliAmps. If the battery was replaced by one with double the voltage (with no other replacements), then its new current would be _____ milliAmps.

a)

60 milliAmps

b)

120 milliAmps

c)

240 milliAmps

d)

No way to tell

51.

The voltage of the battery is 8 volts. If the current must double but the light bulb is remaining the same, the battery must be replaced by one with ____ volts

a)

16 volts

b)

8 volts (the battery voltage won’t change)

c)

4 volts

d)

More information is needed

52.
What voltage is needed to cause a 2A current flow through a 10Ω resistor?
a)
5V
b)
0.2V
c)
20V
d)
200V
53.

In a series circuit, how is the brightness of a light bulb affected when another bulb is connected?

a)

It gets brighter

b)

It stays the same

c)

It gets dimmer

d)

It goes out

54.
In a _________ circuit, if one bulb goes out then the entire circuit doesn't work.
a)
Series
b)
Parallel
55.
In a ________ circuit there are multiple paths for the current to take.
a)
Series
b)
Parallel
56.

Which of the following is a resistor?

a)
b)
c)
d)
57.

What is a resistor?

a)

An electrical component that produces light

b)

An electrical component that helps to limit current, divide voltage and produce heat

c)

An electrical component that produces sound

d)

An electrical component that generates power supply

58.

Which of the following is a series circuit?

a)
b)
59.
What size resistor would produce a 3 Amp current flow with a 12 Volt battery
a)
1 Ohm
b)
3 Ohms
c)
4 Ohms
d)
12 Ohms
60.
If the hair dryer and the vacuum cleaner are both on, what is the power used?
a)
2600 watts
b)
400 watts
c)
2200 watts
d)
1100 watts
61.
The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?
a)
170 W
b)
170 A
c)
1.7 V
d)
1.7 W
62.

What is the power in Watts of a 20V bulb with 5A of current flowing through it?

a)
100W
b)
100V
c)
6.3W
d)
6.3A
63.
An electric meter reads 3462 kWh at the end of the month while a month ago it read 3396 kWh. How many units of electrical energy have been comsumed during the month? Find the cost of electrical energy consumed if 1 unit of energy costs $1.20.
a)
66 kWh = 66 units; $79.20
b)
45 kWh = 44 units; $52.80
c)
22.5 kWh = 22.5 units; $27.00
d)
80 kWh = 80 units; $96.00
64.
What is the potential difference across a resistor that dissipates 5.00 W of power and has a current of 5.0 A?  
a)
1.0 V
b)
4.00 V
c)
0.20 V
d)
125 V
65.
a pair of 15-watt computer speakers are connected to a 12-volt power supply. what is the electric current running through the speakers? 
a)
1.25 A
b)
0.8 A
c)
12.5 A
d)
180 A
66.
This is an example of a _______ circuit
a)
open
b)
series
c)
parallel
d)
square
67.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
68.
The total resistance in this circuit is 
a)
100 ohms
b)
450 ohms
c)
400 ohms
d)
30 ohms
69.
The total current through this circuit is
a)
0.02 amps
b)
0.09 amps
c)
50 amps
d)
9 amps
70.

The voltage dropped across the 300 ohm resistor is  (a)   volt

71.
As resistors are added in series to a circuit, the total resistance will...
a)
increase
b)
decrease
c)
stay the same
72.
As the resistance of a circuit increases, the current will...
a)
increase
b)
decrease
c)
stay the same
73.
In a parallel circuit which of the following is the same value throughout the circuit?
a)
Voltage
b)
Current
c)
Resistance
d)
Charge
74.
The current going through the 45 ohm resistor is 
a)
0.05 amps
b)
0.2 amps
c)
0.1 amps
d)
5 amps
75.
The total resistance of this circuit is 
a)
25.7 ohms
b)
315 ohms
c)
324 ohms
d)
90 ohms
76.
The total current going through the battery of this circuit is
a)
0.35 amps
b)
0.0286 amps
c)
0 amps
d)
9 amps
77.
A series circuit has how many pathways for the electrons to flow?
a)
Two
b)
One
c)
Many
d)
Zero
78.
What is one problem with using a series circuit? 
a)
It has a lot of series. 
b)
If one light goes down, they all go down! 
c)
It doesn't work properly.
d)
There are no problems. 
79.
What is a benefit of using a parallel circuit?  
a)
It gets confusing.
b)
There are no problems.
c)
If one light goes out, it does not affect the others. 
d)
If one light goes out, they all go out. 
80.
An ammeter is a device that can be used to measure
a)
Current
b)
Voltage
c)
Resistance
d)
Power
81.
a)
Series circuit - Bulbs are lit
b)
Series circuit - Bulbs are off
c)
Parallel circuit - Bulbs are lit
d)
Parallel circuit - Bulbs are off
82.
This circuit does not work because…
a)
the bulbs are not connected properly
b)
two cells are not powerful enough
c)
there is a break in the circuit
d)
the cells are facing each other
83.
a)
all bulbs are lit equally
b)
the two top bulbs are brighter
c)
the single lower bulb is brighter
d)
the single bulb does not light and the other two are dim
84.
a)
A2 = A3
b)
A2 + A3 = A1
c)
A1 + A2 = A3
d)
A4 = A2 - A3
85.
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.
86.
The total resistance in this circuit is 
a)
100 ohms
b)
450 ohms
c)
400 ohms
d)
30 ohms
87.
In a parallel circuit which of the following is the same value throughout the circuit?
a)
Voltage
b)
Current
c)
Resistance
d)
Charge
88.

What is the definition of electrical current?

a)

The opposition to the flow of electrons

b)

The rate of flow of charge

c)

The work done on each coulomb of charge

d)

Electrons moving around

89.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
90.
In a parallel circuit, if one connection is broken, all of the connections stop working.
a)
True
b)
False
91.
A series circuit has ____ path(s) that the electric current can take. 
a)
One
b)
Two 
c)
Three 
d)
Four
92.
In a parallel circuit if one of the light bulbs burns out the rest _________.
a)
stop the flow of electricity
b)
 can still light up
c)
 will go out
d)
of the light bulbs burn out also
93.
Does this statement best describe a parallel or a series circuit.
 
When more light bulbs are added they all remain bright. 
a)
Parallel circuit
b)
Series circuit
94.

Unit for current is (a)  

95.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit

Similar Resources on Wayground

CCR Unit 2 Vocabulary

91 questions

CCR Unit 2 Vocabulary

quiz

Worksheet

•

6th - 12th Grade

Blood Medical Terminology

90 questions

Blood Medical Terminology

quiz

Worksheet

•

10th - 12th Grade

SOAL KEBUMIAN

100 questions

SOAL KEBUMIAN

quiz

Worksheet

•

10th Grade

CCEA Yr 13 Digital Technology: Unit 2

98 questions

CCEA Yr 13 Digital Technology: Unit 2

quiz

Worksheet

•

11th - 12th Grade

CERDAS CERMAT

100 questions

CERDAS CERMAT

quiz

Worksheet

•

11th Grade

LET II - IV Cycle 1 Exam

100 questions

LET II - IV Cycle 1 Exam

quiz

Worksheet

•

9th - 12th Grade

Core 70 Math Vocabulary Quizizz

100 questions

Core 70 Math Vocabulary Quizizz

quiz

Worksheet

•

8th - 12th Grade

LP UP 7

100 questions

LP UP 7

quiz

Worksheet

•

10th Grade - University