wayground logo

Free Printable Worksheets

NEW

Font size

S
M
L
XL
Worksheets

Ohm's Law Review

Total questions: 58

Worksheet time: 2hrs 34mins

Name
Class
Date
1.

Who developed Ohm's Law?

a)

Georg Ohm

b)

Andre Ampere

c)

Paul

d)

Einstein

2.

What is the relationship between voltage and current?

a)

Directly proportional

b)

Inversely proportional

c)

No relationship

d)

Random relationship

3.

What is the formula for calculating voltage?

a)

V = I * R

b)

V = I / R

c)

V = R / I

d)

V = E / R

4.

What is the unit of current?

a)

Ampere

b)

Volt

c)

Ohm

d)

Coulomb

5.

What happens to the current when resistance is doubled?

a)

Current halves

b)

Current doubles

c)

Current remains the same

d)

Current becomes zero

6.

What is the formula for calculating current?

a)

I = V * R

b)

I = V / R

c)

I = R / V

d)

I = E / R

7.

What is the relationship between current and resistance?

a)

Directly proportional

b)

Inversely proportional

c)

No relationship

d)

Random relationship

8.

What is the formula for calculating resistance?

a)

R = V * I

b)

R = V / I

c)

R = I / V

d)

R = E / I

9.

What is the resistance of a lamp with a current of 0.5 Amps and a voltage of 12 volts?

a)

6 Ohms

b)

24 Ohms

c)

0.5 Ohms

d)

2.4 Ohms

10.

What will be the current when a 240 Ohm lamp is plugged into a 120 volt outlet in the US?

a)

0.5 Amps

b)

1 Amp

c)

2 Amps

d)

4 Amps

11.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
12.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
d)
light
13.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
14.
A material in which electrons are not able to move easily 
a)
Circuit 
b)
Insulator 
c)
Resistance 
d)
Conductor
15.
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
16.
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
17.
What is the Voltage of a circuit that has a resistance of 5 Ω and a current of 2 A?
a)
25 V
b)
10 V
c)
2.5 V
d)
0.4 V
18.
How many Volts would we need to produce a current flow of 8 Amps through a 6 Ohm resistor
a)
12 volts
b)
24 volts
c)
1.3333
d)
48 volts
19.

What is the name for the pressure that forces electrons to flow through a circuit?

a)

Voltage

b)

Capacitance

c)

Resistance

d)

Current

20.
This circuit has a 24 volt battery and the resistor is 8 ohms. How many amps are running through the circuit?
a)
3 Amps
b)
192 Amps
c)
2 Amps
d)
4 Amps
21.

If the battery produced 12.6 Volts what would be the current flow for a 6 Ohm resistor?

a)

2.1 Amps

b)

2.4 Amps

c)

1.71 Amps

d)

15 Amps

22.
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
23.
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
24.

In the model, what does the lightbulb represent?

a)

electricity

b)

current

c)

voltage

d)

resistance

25.

In the model, what does the battery represent?

a)

voltage

b)

current

c)

circuit

d)

resistance

26.

Based on this model, what change should be made in order to increase the current?

a)

Close the switch

b)

Add another battery

c)

Add another lamp

d)

Remove a wire

27.

If a charger for a tablet offers a voltage of 120V and has 240Ω of resistance, what is the amperage?

a)

0.5A

b)

2A

c)

14,400A

d)

28,800A

28.

If a computer has 10.0A of current and 11Ω of resistance, what is its voltage?

a)

0.9V

b)

1.1V

c)

55V

d)

110V

29.

If the current through a resistor is 2A and the voltage across it is 12V, what is the resistance

a)

12Ω

b)

6Ω

c)

24Ω

d)

0.167Ω

30.
Which resistor will prevent the most current flow?
a)
1 ohm
b)
100 ohms
c)
1000 ohms
d)
0.5k ohms
31.
What kind of circuit is this?
a)
series
b)
parallel
32.
This circuit has more than one loop. When one light goes out, the others stay on. 
a)
closed circuit
b)
series circuit
c)
parallel circuit
d)
open circuit
33.
this circuit is .....?
a)
open
b)
parallel
c)
closed
d)
The cutest little circuit evah!
34.

Simple, Series, or Parallel?

a)

Simple

b)

Series Circuit

c)

Parallel Circuit

35.
In a Series circuit the more lightbulbs you add the brighter they get 
a)
False 
b)
True 
36.

Which best describes a parallel circuit?

a)

Electricity flows along one pathway.

b)

The flow of electricity comes from one source.

c)

Electricity flows along more than one pathway.

d)

The flow of electricity comes from more than one source.

37.
DC stands for ____ and is used in batteries.
a)
Distant Current
b)
Don't Current
c)
Direct Current
d)
Distributed current
38.
What resistance is needed to cause a 50A current flow because of a 500V battery?
a)
10Ώ
b)
5Ώ
c)
2500Ώ
d)
550Ώ
39.
What is this symbol?
a)
resistor
b)
switch
c)
battery
d)
bulb
40.

What is the voltage of a circuit with 4 ohms of resistance and 3 amps of current?

a)

12 V

b)

21 V

c)

4/3 V

d)

3/4 V

41.
What is the potential difference?
a)
Current
b)
Power
c)
Voltage
d)
Resistance
42.

If a series circuit of three bulbs is rearranged into a parallel circuit, what will happen to the brightness of three bulbs

a)

The bulbs will turn off due to an incomplete supply of electricity.

b)

All three bulbs will have the same amount of luminosity once rearranged into a parallel circuit but will be dimmer than in parallel.

c)

All three bulbs will have the same amount of luminosity once rearranged into a parallel circuit but will be brighter than in series.

d)

The bulb next to the battery will be brightest and each bulb will be dimmer than the one before.

43.

Johnny and Sam are working on a physics lab together. In their lab, they are to create both a series circuit and a parallel circuit using identical materials. Johnny constructs the series circuit while Sam makes the parallel circuit. After observing the two circuits, Sam argues that his circuit contains more resistance than Johnny's circuit. Johnny says that Sam is wrong, and that his circuit has more resistance. Who is correct?

a)

Sam is correct, the parallel circuit has more paths for the electricity to travel, making the resistance greater.

b)

Sam is correct, the parallel circuit's light(s) is brighter, meaning there is more resistance.

c)

Johnny is correct, parallel circuits have LESS resistance because the current is greater.

d)

Johnny is correct, parallel circuits have LESS resistance because their resistors add inversely, while the resistors in series circuits add normally.

44.
You are given a basic series circuit with a battery, a switch, and three identical resistors. If the circuit is rearranged so that it is now a parallel circuit, what would happen to the current?
a)
it would decrease
b)
it would stay the same
c)
it would increase
d)
it would react inversely
45.

For which circuit do you have to inverse the resistors to find the equivalent resistance?

a)

series circuit

b)

parallel circuit

c)

both series and parallel circuits

d)

neither series and parallel circuits

46.

Which of the following circuit diagrams is a parallel circuit?

a)
b)
c)
d)
47.

Which of the following circuit diagrams would short circuit due to lack of resistance?

a)
b)
c)
d)
48.

Solve for the total resistance of the circuit shown

a)

50 V

b)

1970 ohms

c)

705 K ohms

d)

20 Amps

49.

Voltage drop stands for what?

a)

the voltage applied to a circuit

b)

the voltage flowing through a resistor

c)

the voltage used by a load

50.

What is the total circuit resistance of the following five resistors connected in series?

R1 = 27 ohms

R2 = 33 ohms

R3 = 51 ohms

R4 = 1.2 kohms

R5 = 240 ohms

Rt = __________ Ohms

a)

353.2

b)

1551

c)

1.9 K

51.

If more bulbs were added to this circuit, each bulb would get ___.

a)

brighter

b)

dimmer

52.

If bulb #2 in this series circuit broke, bulb #1 would

a)

stay on

b)

go off

53.

Homes, school and factories ___ wired in series.

a)

are

b)

are not

54.

In a series circuit, when you add more appliances, each appliance gets ___ power/electrical pressure.

a)

more

b)

less

55.

Students constructed a circuit using different-colored lightbulbs. What will happen if Switch 3 is closed and the other switches are left open?

a)

Only the white bulb will operate

b)

None of the bulbs will operate

c)

Only the white and yellow bulbs will operate

d)

Only the red and blue bulbs will operate

56.
When you remove a bulb from a three bulb circuit, and the other two bulbs go off, then the bulbs must have been connected in __________.
a)
parallel
b)
series
c)
open
d)
closed
57.
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.
58.

Which of the following is true?

a)

The voltage will be equal at R1, R2 and R3

b)

Current at 1 is equal to 2

c)

Total resistance is

1/18 ohms

d)

Voltage is greatest through R1

Similar Resources on Wayground

P2 Electricity AQA (Separate Physics)

59 questions

P2 Electricity AQA (Separate Physics)

quiz

Worksheet

•

10th - 12th Grade

Semiconductor diode

60 questions

Semiconductor diode

quiz

Worksheet

•

10th - 12th Grade

Current Electricity Unit 5 Quiz 1

63 questions

Current Electricity Unit 5 Quiz 1

quiz

Worksheet

•

9th - 12th Grade

Atomic History/Atomic Theory

58 questions

Atomic History/Atomic Theory

quiz

Worksheet

•

10th - 12th Grade

Forces Review

57 questions

Forces Review

quiz

Worksheet

•

9th - 12th Grade

Work, Energy, and Power

54 questions

Work, Energy, and Power

quiz

Worksheet

•

11th Grade - University

Review Game: Kinematics 1D

57 questions

Review Game: Kinematics 1D

quiz

Worksheet

•

11th - 12th Grade

Module 3 "Forces & Newton's Laws"

57 questions

Module 3 "Forces & Newton's Laws"

quiz

Worksheet

•

8th - 12th Grade