WorksheetsElectricity
Total questions: 65
Worksheet time: 48mins
Name
Class
Date
1.
Electricity that flows in a closed path is called a
a)
path
b)
current
c)
circuit
2.
____________ allows electricity to flow.
a)
A conductor
b)
An insulator
c)
A magnet
3.
The plastic around the wire is
a)
conductor
b)
insulator
c)
decoration
4.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
5.
What kind of circuit is this?
a)
series
b)
parallel
6.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
7.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
8.
A material in which electrons are not able to move easily
a)
Circuit
b)
Insulator
c)
Resistance
d)
Conductor
9.
the type of current that is used in outlets
a)
apparating current
b)
diverting current
c)
AC
d)
DC
10.
measure of electric current
a)
watt
b)
ohm
c)
volt
d)
amp
11.
measure of resistance
a)
watt
b)
ohm
c)
volt
d)
amp
12.
measure of power
a)
watt
b)
ohm
c)
volt
d)
amp
13.
tiny particles that have a negative charge
a)
protons
b)
neutrons
c)
electrons
d)
circuits
14.
provides more than one path for the electrons to follow
a)
series circuit
b)
parallel circuit
c)
insulator
d)
conductor
15.
there is only one path for the electrons to follow
a)
conductor
b)
insulator
c)
parallel circuit
d)
series circuit
16.
What is one problem with using a series circuit?
a)
It has a lot of series.
b)
If one light goes down, they all go down!
c)
It doesn't work properly.
d)
There are no problems.
17.
What is a benefit of using a parallel circuit?
a)
It gets confusing.
b)
There are no problems.
c)
If one light goes out, it does not affect the others.
d)
If one light goes out, they all go out.
18.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
19.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
20.
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
21.
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
22.
What is current measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
23.
What is resistance measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
24.
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
25.
The mathematical relationship among Voltage, Current, and Resistance
a)
Faraday's Law
b)
Tesla's Law
c)
Edison's Law
d)
Ohm's Law
26.
Current times Resistance equals
(I X R)
(I X R)
a)
Power
b)
Voltage
c)
Amperage
d)
Ohm
27.
Voltage divided by Resistance
(V / R)
a)
Current
b)
Power
c)
Ohms
d)
Watts
28.
Voltage divided by Current
(V / I)
a)
Current
b)
Power
c)
Resistance
d)
Watts
29.
If the Voltage is increased and the resistance stays the same, Current will
a)
Increase
b)
Decrease
c)
Stay the same
d)
X
30.
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
31.
A kilowatt (kW) is how many watts?
a)
10
b)
50
c)
100
d)
1000
32.
The unit of energy is?
a)
Amp
b)
Joule
c)
kiloWatt
d)
Volt
33.
Calculate the power generated as a 20 A current flows through a 10Ω resistor?
a)
2 W
b)
200 W
c)
4000 W
d)
400 W
34.
How much power can be generated from a 20A current flow because of a 1 kV battery?
a)
20 W
b)
20000 W
c)
0.05 W
d)
0.5 W
35.
What is the resistance of a 75 W bulb with 5 A of current flowing through it?
a)
3 Ω
b)
15 Ω
c)
375 Ω
d)
Resistance is futile!
36.
What is the power of a 20V bulb with 5A through it?
a)
100W
b)
100V
c)
6.3W
d)
6.3A
37.
The power of an appliance is...
a)
the amount of voltage going through it
b)
the amount of energy transferred per second
c)
the amount of charge that passes through per second
38.
Electrical power can be calculated using
a)
Resistance x Voltage
b)
Voltage x Current
c)
Voltage ÷ Current
39.
Watts is the same as...
a)
Joules per second
b)
Voltage per second
c)
Current per second
40.
The voltage supplied to a circuit is 17 V and the current running through is 10 A. What is the power generated?
a)
170 W
b)
170 A
c)
1.7 V
d)
1.7 W
41.
This prevents current overload in a circuit.
a)
fuse
b)
GFCI
c)
three prong plug
42.
What is the mathematical equation for electrical energy?
a)
V = P x W
b)
E = P x t
c)
F = M x H
43.
A 10-ohm resistor has a constant current. If 1200 C of charge flow through it in 4 minutes what is the value of the current?
a)
3.0 A
b)
5.0 A
c)
20 A
d)
120 A
44.
Current is a measure of:
a)
force that moves a charge past a point
b)
resistance to the movement of a charge past a point
c)
energy used to move a charge past a point
d)
amount of charge that moves past a point per unit time
45.
What is the rule for voltage in a parallel circuit?
a)
stays the same
b)
adds up
c)
inverse of the sum of the reciprocals
46.
Adding more bulbs to a parallel circuit will make each bulb burn less brightly.
a)
True
b)
False
47.
Electricity that flows in a closed path that is called a
a)
path
b)
current
c)
circuit
d)
road
48.
The flow of electrons in a circuit is the
a)
current
b)
flow
c)
circuit
49.
what is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
50.
A circuit with 3 resistors, 10 Ohms, 30 Ohms and 20 Ohms are in series. What is the total resistance
a)
30 Ohms
b)
50 Ohms
c)
60 Ohms
d)
100 Ohms
51.
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 has more than one path to flow through
52.
this is the symbol for a _____?
a)
switch
b)
light
c)
battery
d)
wires
53.
This is the symbol for a ...
a)
Bulb
b)
Battery
c)
variable resistor
d)
Fuse
54.
This is the symbol for a ...
a)
Wire
b)
Battery
c)
Buzzer
d)
Fuse
55.
What is this symbol?
a)
Thermistor
b)
Resistor
c)
Diode
d)
Cell
56.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
57.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
an ammeter
d)
a voltmeter
58.
This is the circuit symbol for ...
a)
an AC current source
b)
a DC current source
c)
a battery
d)
a single cell
59.
This is the symbol for
a)
Variable resistor
b)
Thermistor
c)
Resistor
d)
Fuse
60.
This is the symbol for
a)
Variable Resistor
b)
Thermistor
c)
Light Dependent Resistor
d)
Resistor
61.
What is this symbol for?
a)
light dependent resistor
b)
light emitting diode
c)
thermistor
d)
variable resistor
62.
This is the symbol for a _____?
a)
Lamp
b)
Water wheel
c)
Loudspeaker
d)
Motor
63.
This is the symbol for a
a)
Closed switch
b)
Push switch
c)
Trap door
d)
AC Power supply
64.
This is the symbol for a _____?
a)
Diode
b)
LED
c)
Microphone
d)
Loudspeaker
65.
This is the symbol for a _____?
a)
Fuse
b)
Resistor
c)
Heater
d)
Strip light
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