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Ohm Law

Total questions: 49

Worksheet time: 1hrs 23mins

Name
Class
Date
1.
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
2.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
3.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
4.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
5.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
6.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
d)
light
7.
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
8.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
9.
Current times Resistance equals
 (I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
10.

Voltage divided by Resistance

(V / R)

a)

Current

b)

Power

c)

Ohms

d)

Watts

11.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
12.
If the Voltage stays the same and Resistance is increased, Current will 
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
13.
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
14.
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
15.
What word means how hard it is for electrons to flow through.
a)
Current
b)
Voltage
c)
Resistance
d)
Power
16.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
d)
It depends
17.
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
18.
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
19.
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
20.

What is the formula for ohms law?

a)

1+2=3

b)

R X V = I

c)

V=I x R

d)

R= I x V

21.
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
22.

A parallel circuit

a)

has only one path for current to travel

b)

has more than one path for current to travel

c)

does not allow electricity to travel through it

d)

has magnets that cause electric current

23.
In a parallel circuit, if one connection is broken, all of the connections stop working.
a)
True
b)
False
24.
What 'flows' in a wire?
a)
Protons
b)
Neutrons
c)
Atoms
d)
Electrons
25.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
26.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
27.

This is an example of a _______ circuit

a)

open

b)

series

c)

parallel

d)

switch

28.

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.

29.
What is the energy source for a circuit?
a)
Light bulb
b)
Battery
c)
Wire
d)
Switch
30.
Which of these materials is a good insulator?
a)
Plastic and metal
b)
Metal and rubber
c)
Plastic and rubber
31.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator 
c)
Resistance 
d)
Conductor 
32.
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.
33.

If the switch was opened, what would happen?

a)

the ammeter would measure a current flowing

b)

current would no longer flow, so everything would be off

c)

the bulbs would stay on because they're connected to the cell

d)

the bulbs would burn out and catch fire

34.

Current is measured in

a)

Volts

b)

Watts

c)

Seconds

d)

Amps

35.

If one bulb goes out in a series circuit, the remaining bulbs...

a)

also go out

b)

get brighter

c)

get dimmer

d)

explode, leaving shards of glass everywhere

36.

As you continue to add lightbulbs in series, what happens?

a)

The bulbs get brighter

b)

The bulbs get dimmer

c)

The bulbs remain the same brightness

d)

The bulbs explode and shards of glass get everywhere

37.

What is the value of the total resistance in the shown circuit ?

a)

7 Ohm

b)

15 Ohm

c)

12 Ohm

d)

9 Ohm

38.

Choose the value of the total resistance in the shown circuit

a)

3 Ohm

b)

5 Ohm

c)

4 Ohm

d)

9 Ohm

39.

The shown circuit is series and parallel combination circuit

a)

false

b)

true

40.
a)

C

b)

A

c)

B

d)

D

41.
What kind of circuit is this?
a)
series
b)
parallel
42.

Identical ideal batteries are connected in different arrangements to the same light bulb, as shown in the figure. For which arrangement will the bulb shine the brightest?

a)

A

b)

B

c)

C

43.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
44.
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
45.

What is the Total Resistance in this circuit?

a)

3 ohms

b)

30 ohms

c)

30 amps

d)

90 volts

46.

What kind of circuit is this?

a)

Simple Circuit

b)

Open Circuit

c)

Series Circuit

d)

Parallel Circuit

47.

Given It = 6A

Calculate Rt

a)

12.5

b)

200

c)

50

d)

8

48.

What is the value of the total resistance in the shown circuit ?

a)

7 Ohm

b)

15 Ohm

c)

12 Ohm

d)

9 Ohm

49.

Choose the value of the total resistance in the shown circuit

a)

3 Ohm

b)

5 Ohm

c)

4 Ohm

d)

9 Ohm

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