WorksheetsElectricity Review for Cyber Lit.
Total questions: 34
Worksheet time: 19mins
Name
Class
Date
1.
The flow of electrons or an electric charge is called
a)
Ohms
b)
Amps
c)
Resistance
d)
Electricity
2.
Electrical potential between two points is called
a)
Voltage
b)
Energy
c)
High Tension
d)
Resistance
3.
The rate of flow of electric charge through a medium
a)
Wire
b)
Electrons
c)
Current
d)
Insulator
4.
An automatically operated (resettable) over-current protection device
a)
Load
b)
Amp
c)
Bulb
d)
Circuit Breaker
5.
A sacrificial over-current device, usually a thin wire
a)
Fuse
b)
Fusion
c)
Cell
d)
Battery
6.
The measure of the degree to which an object opposes an electric current
a)
Watt
b)
Resistance
c)
Parallel circuit
d)
Ground fault
7.
The standard unit of electrical resistance
a)
Ohm
b)
Fuse
c)
Watt
d)
Battery
8.
An electrical battery that converts chemical energy into electrical energy
a)
Bulb
b)
LED
c)
Capacitor
d)
Cell
9.
The unit for measuring the rate of flow of electric charge
a)
Electricity
b)
Cell
c)
Amps
d)
Watts
10.
Protects outlets that may be used outdoors or near water
a)
Ground Fault Circuit Interruptor
b)
Lightning rod
c)
Light switch
d)
Voltage
11.
In the formula for Ohm's law,
I = V / R, current is represented by what letter?
I = V / R, current is represented by what letter?
a)
V
b)
I
c)
R
d)
None of the above
12.
In this image illustrating Ohm's Law, what letter symbolizes resistance?
a)
I
b)
R
c)
V
d)
+
13.
Using Ohm's Law,
V = I x R,
Solve for voltage if the current is 10Amps and the resistance is 10 Ω
V = I x R,
Solve for voltage if the current is 10Amps and the resistance is 10 Ω
a)
100 Volts
b)
1000 Volts
c)
1 Volt
d)
10,000 Volts
14.
Using Ohm's law,
I = V ÷ R,
what is the current in amps if there are 10 volts with 1 Ω of resistance?
I = V ÷ R,
what is the current in amps if there are 10 volts with 1 Ω of resistance?
a)
10 Amps
b)
1 Amp
c)
100 Amps
d)
0 Amps
15.
Using Ohm's law,
I = V ÷ R,
what is the current in amps if there are 18 volts with 6 Ω of resistance?
I = V ÷ R,
what is the current in amps if there are 18 volts with 6 Ω of resistance?
a)
.3333333 Amps
b)
108 Amps
c)
186 Amps
d)
3 Amps
16.
Using Ohm's law,
R = V ÷ I
what is the resistance given that there are 10 volts and the current is 4 Amps?
R = V ÷ I
what is the resistance given that there are 10 volts and the current is 4 Amps?
a)
2.5 Ω
b)
40 Ω
c)
400 Ω
d)
None of the above
17.
Using Ohm's law,
R = V ÷ I
what is the resistance given that there are 18 volts and the current is 2 Amps?
R = V ÷ I
what is the resistance given that there are 18 volts and the current is 2 Amps?
a)
0.111 Ω
b)
36 Ω
c)
9 Ω
d)
None of the above
18.
In this diagram, "B" stands for the
a)
Resistor
b)
Battery
c)
Electron
d)
Load or Bulb
19.
In this diagram, "C" stands for the
a)
Resistor
b)
Battery
c)
Electron
d)
Load or Bulb
20.
In this diagram, "A" stands for the
a)
Resistor
b)
Battery
c)
Electron
d)
Load or Bulb
21.
In this diagram, "+" stands for
a)
Resistor
b)
Battery
c)
Positive Charge
d)
Load or Bulb
22.
Why can birds touch high voltage wires without being electrocuted?
a)
Their feathers are hollow and protect them
b)
They are so small they can't feel the electric charge
c)
They don't touch the ground when sitting on the wire and therefore don't create a circuit
23.
Why would it be bad if you touched the ground while working on a high tension wire?
a)
If you touch the electrical source and the ground, you become the circuit
b)
It's only bad if you are over 30 feet high
c)
It won't be bad, only tingle a little
d)
You become a battery
24.
Our BoeBots that we will use this year are fully autonomous and require no human intervention.
a)
True
b)
False
25.
We can use Ohm's law if we have two values and are missing the third
a)
True
b)
False
26.
Solar panels store energy and can be used to power a house at night.
a)
True
b)
False
27.
a machine with blades that are caused to spin by pressure from water, steam, or air is called a(n)
a)
electromagnetic field
b)
charged particle
c)
load
d)
turbine
28.
Liberal arts is the study of the arts of the free person
a)
True
b)
False
29.
This is an example of what kind of circuit?
a)
Parallel
b)
Series
c)
Double
d)
Broken
30.
This is an example of what type of circuit?
a)
Parallel
b)
Series
c)
Double
d)
Broken
31.
A breadboard is used to make what type of circuits?
a)
souldered
b)
permanent
c)
temporary
d)
none of the above
32.
LED stands for
a)
lead efficient diode
b)
light effusing direction
c)
light effort distilation
d)
light emitting diode
33.
The longer lead on an LED is
a)
negative
b)
positive
c)
electric
d)
current
34.
Compact florescent lights (CFLs) are more efficient than incandescent bulbs because
a)
CFLs contain mercury
b)
CFLs have longer tubes and need more electricity
c)
incandescent filaments generate heat and lose more energy than a CFL
d)
CFL bulbs are more expensive and that's why they are more efficient
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