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WorksheetsCircuits and Ohm's Law
Total questions: 35
Worksheet time: 22mins
Name
Class
Date
1.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
2.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
3.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
4.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
5.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
6.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
7.
This is an example of a _______ circuit
a)
open
b)
series
c)
parallel
d)
square
8.
This is an example of a ______ circuit
a)
Series
b)
Parallel
c)
Open
d)
Dihexihedral
9.
A Charging system producing 14.5 Volts with a current flow of 43.5 Amps, what is the circuit resistance
a)
58 Amps
b)
0.33 Amps
c)
13 Amps
d)
1 Amp
10.
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
11.
What size resistor would produce a current flow of 5 Amps with a battery voltage of 12.6 volts
a)
60 Ohms
b)
2.52 Ohms
c)
1.71 ohms
d)
5.04 Ohms
12.
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
13.
If the lights are off, the circuit is
a)
closed
b)
open
c)
electrified
d)
in trouble
14.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
d)
It depends
15.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
d)
big and small
16.
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
17.
What is the current in a 10V circuit if the resistance is 2Ω?
a)
20 amps
b)
8 amps
c)
5 amps
18.
What is the current in a 120V circuit if the resistance 20Ω?
a)
6 amps
b)
2400 amps
c)
100 amps
19.
What is the current in a 120V circuit if the resistance 10Ω?
a)
110 amps
b)
12 amps
c)
66.67Ω
20.
What is the current in a 120V circuit if the resistance 5Ω?
a)
24 amps
b)
115 amps
c)
600 amps
21.
What happens to the current in a circuit as the resistance decreases?
a)
Current increases
b)
Current Decreases
c)
Current remains the same
22.
What happens to the current in a circuit as the resistance increases?
a)
Current increases
b)
Current Decreases
c)
Current remains the same
23.
What voltage is required to move 2A through 5Ω?
a)
2.4 volts
b)
10 volts
c)
25 volts
24.
What voltage is required to move 2A through 10Ω?
a)
8 volts
b)
210 volts
c)
20 volts
25.
What voltage is required to move 2A through 20Ω?
a)
8 volts
b)
40 volts
c)
20 volts
26.
What happens to the voltage in a circuit as the resistance decreases?
a)
remains the same
b)
decreases
c)
increases
27.
What happens to the voltage in a circuit as the resistance increases?
a)
remains the same
b)
decreases
c)
increases
28.
What is the resistance of a circuit with 20V and 2A?
a)
10Ω
b)
40Ω
c)
18Ω
29.
What is the resistance of a circuit with 120V and 10A?
a)
110Ω
b)
12Ω
c)
110Ω
30.
What is the resistance of a circuit with 120V and 4A?
a)
90Ω
b)
12Ω
c)
30Ω
31.
What is the current in a 12V circuit if the resistance is 2Ω?
a)
6Ω
b)
6 amps
c)
24 amps
32.
What is the current in a 20V circuit if the resistance is 10Ω?
a)
5 amps
b)
2 amps
c)
.5 amps
33.
What is the resistance of a circuit with 120V and 5A?
a)
99Ω
b)
600Ω
c)
24Ω
34.
Voltage and resistance in a circuit determine how much _______ is in the circuit.
a)
resistance
b)
current
c)
voltage
35.
An electrical heater draws 3.5A fro a 110v source. The resistance of the heating element is approximately
a)
31Ω
b)
385Ω
c)
3.1Ω
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