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WorksheetsOhms Law and Electricity
Total questions: 20
Worksheet time: 19mins
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.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
d)
light
5.
Voltage divided by Resistance
(V / R)
a)
Current
b)
Power
c)
Ohms
d)
Watts
6.
Current times Resistance equals
(I X R)
(I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
7.
Voltage divided by Current
(V / I)
a)
Current
b)
Power
c)
Resistance
d)
Watts
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.
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
11.
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
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.
The plastic covering is there to:
a)
Provide a conductor for electrical energy to flow.
b)
Provide an insulator so that electrical energy will not pass outside of the wires.
c)
Provide a conductor so that electrical energy can NOT flow.
d)
Provide an insulator so that electrical energy can flow.
14.
Factor which does not affect the resistance
a)
Type of material
b)
Length of material
c)
Mass of the material
d)
Area of the material
15.
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
16.
What is the name for the pressure that forces electrons to flow through a circuit?
a)
Voltage
b)
Capacitance
c)
Resistance
d)
Current
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.
What is this symbol?
a)
resistor
b)
switch
c)
battery
d)
bulb
19.
If you decreases the resistance of a circuit, what happens?
a)
Current decreases
b)
Current increases
c)
Electrons disappear
d)
Bulbs get brighter
20.
If you increase the voltage of a circuit, what happens?
a)
Current decreases
b)
Current increases
c)
Electrons disappear
d)
Bulbs get dimmer
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