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Worksheetsohms law grade 9
Total questions: 15
Worksheet time: 35mins
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 resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
4.
What is Resistance?
a)
The flow of electrons
b)
Electric potential difference
c)
A battery
d)
The ability to reduce the flow of electrons
5.
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
6.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
7.
Current times Resistance equals
(I X R)
(I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
8.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
9.
If the Voltage stays the same and Resistance is increased, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
10.
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
11.
What voltage is needed to cause a 50A current flow through a 10Ω resistor?
a)
15V
b)
500V
c)
500 kV
d)
0.2V
12.
What resistance is needed to cause a 50A current flow because of a 500V battery?
a)
10Ώ
b)
5Ώ
c)
2500Ώ
d)
550Ώ
13.
If the battery produced 12.6 Volts and what would be the current flow be for a 6 Ohm resistor
a)
2.1 Amps
b)
2.4 Amps
c)
1.71 Amps
d)
15 Amps
14.
A 10-V battery generates a current through a 5 Ω resistor. How much current does the battery generate?
a)
2 A
b)
50 A
c)
2.5A
d)
0.5
15.
A 3-V battery sends a current of 0.10 A through a light bulb. What is the resistance of the filament of the bulb?
a)
.033 Ω
b)
30 Ω
c)
.3 Ω
d)
300 Ω
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