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Electricity Revision

Total questions: 42

Worksheet time: 36mins

Name
Class
Date
1.
A material in which electrons are not able to move easily is called _______.
a)
Circuit 
b)
Insulator 
c)
Resistance 
d)
Conductor
2.

What electrical charge do electrons carry?

a)

Positive

b)

Negative

c)

Neutral

3.

What is the effect of changing the wire in a circuit from a thick wire to a thin wire?

a)

The overloaded bulb will blow out.

b)

The bulb brightness stays the same.

c)

The bulbs become dimmer.

d)

The bulbs become brighter.

4.

What is a circuit?

a)

The buildup of electric charges

b)

A complete, closed path through which electric charges flow

c)

Opposition to the flow of charge

d)

Electric potential

5.
Copper is used in wiring because it is an excellent______________ of electricity.
a)
circuit breaker
b)
conductor
c)
insulator
d)
fuse
6.
A small device that stores energy in a chemical form
a)
Complete circuit
b)
Switch
c)
Power source
d)
Battery
7.
The unit for current is the 
a)

Volt

b)

Ohm

c)

Electron

d)

Ampere

8.
the tendency for a material to oppose the flow of electrons
a)
current
b)
circuit
c)
resistance
d)
difference
9.
A material in which electrons are not able to move easily is called _______.
a)
Circuit 
b)
Insulator 
c)
Resistance 
d)
Conductor
10.
This circuit is .....?
a)
open
b)
parallel
c)
closed
d)
The cutest little circuit evah!
11.
What is a switch's function in a circuit?
a)
to make the current hotter or colder
b)
turn on and off the flow of current
c)
the pathway that current flows
d)
to add more power to the circuit
12.
Will the light bulb in this circuit light and why/why not?
a)
yes, because it has two batteries
b)
no, because the switch is open
c)
yes, because it is in a circuit
d)
no, because the bulb is burned out
13.
This is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
14.
What is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
15.
Which of these objects is an insulator?
a)
Copper Wire
b)
Paper Clip
c)
Steel Pole
d)
Rubber Gloves
16.
Which of the following can act as a load or energy receiver?
a)
Battery
b)
Light bulb
c)
Wire
d)
All of them
17.
Which of the following can work as an energy source?
a)
Battery
b)
Light bulb
c)
Wire
d)
All of them
18.
What is a closed path for electrons to flow through?
a)
static electricity
b)
circuit
c)
amperes
19.

What is the purpose of a fuse?

a)

to break the circuit and turn the power off if there is too much power being run

b)

to add more power to the circuit

c)

to be a conductor

d)

to be an insulator

20.
What is voltage measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
21.

In a circuit diagram, this symbol represents a

a)

switch

b)

multimeter

c)

battery

d)

globe

22.

Voltage is

a)

the energy given to the wire to move

b)

the energy given to the electron to move around the circuit

c)

work done on the circuit

d)

the energy in the electron

23.

Electricity flows from which side of the battery?

a)

Positive to negative

b)

Negative to positive

c)

I have no idea

24.
Two batteries in a circuit make the lights in the circuit brighter than one battery.
a)
true
b)
false
25.
If the lights are on, the circuit is
a)
closed
b)
open
26.
What electrical symbol is this?
a)
Lightbulb
b)
Motor
c)
Battery
d)
Switch
27.
What electrical symbol is this?
a)
Open Switch
b)
Closed Switch
c)
Lightbulb
d)
Battery
28.
What kind of circuit is this?
a)
series
b)
parallel
29.

What type of circuit is the image showing?

a)

Parallel

b)

Series

c)

No circuit

30.
What does the I stand for on the ohm's law wheel?
a)
current
b)
voltage
c)
power
d)
ohms
31.
What does the W stand for on the ohm's law wheel?
a)
amps
b)
volts
c)
watts
d)
ohms
32.
What does the R stand for on the ohm's law wheel?
a)
resistance
b)
voltage
c)
current
d)
mass
33.
What does the V stand for on the ohm's law wheel?
a)
current
b)
Voltage
c)
amperes
d)
watts
34.
What is the current in ampere through a 1440 watt and 10 ohm device?
a)
10
b)
144
c)
12
d)
14.4
35.
What is the resistance of a 120 volt, 3 amp device?
a)
360
b)
40
c)
4
d)
0.025
36.
What isthe current in ampere through a 100 watt and 120 volt device?
a)
8.3
b)
0.83
c)
120
d)
109.5
37.
What 1 kW is equivalent to __________ watts?
a)
100 W
b)
1,000 W
c)
10,000 W
d)
10 W
38.
What is the wattage rating of a 240 volt, 6 amp device?
a)
1.44
b)
14.4
c)
144
d)
1440
39.
What is the voltage of a 60 ohm, 2 amp device?
a)
30
b)
0.033
c)
10.95
d)
120
40.
Power is measured in what unit?
a)
amps
b)
volts
c)
watts
d)
ohms
41.
What is a kilo equal to?
a)
100
b)
1,000
c)
100,000
d)
1,000,000
42.
what is the power of a lamp whose current is 6 A and the voltage across it is 120 V?
a)
120 W
b)
720 W
c)
16 W
d)
10 W

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