WorksheetsSeries & Parallel Circuits
Total questions: 31
Worksheet time: 22mins
Name
Class
Date
1.
____________ allows electricity to flow.
a)
A conductor
b)
An insulator
c)
A magnet
2.
____________ stops the flow of electricity.
a)
A conductor
b)
An insulator
c)
A magnet
3.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
4.
What kind of circuit is this?
a)
series
b)
parallel
5.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
6.
A flow of electrons through a conductor is called:
a)
A river
b)
A spark
c)
An electron flow
d)
A current
7.
Electricity is the flow of ______.
a)
electrons
b)
protons
c)
neutrons
d)
atoms
8.
The red and black plastic wire coverings are excellent ______.
a)
Conductors
b)
Insulators
c)
Currents
d)
Magnets
9.
In most electrical circuits, the pathway is made of:
a)
Wood
b)
Plastic
c)
Metal
d)
Static
10.
When a 9 volt battery is connected to a 3 ohm resistor, how much current flows in the circuit?
a)
3 amps
b)
6 amps
c)
9 ohms
d)
100 watts
11.
Compared to thin wires, electrical resistance in thick wires is:
a)
greater
b)
less
c)
the same
12.
Metals such as copper, iron, gold, and silver are ...
a)
conductors
b)
brittle
c)
insulators
d)
resistors
13.
What is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
14.
This is the symbol for a _____?
a)
switch
b)
light
c)
battery
d)
wires
15.
Find the odd-one out:
Plastic
Rubber
Glass
Silver
Plastic
Rubber
Glass
Silver
a)
Plastic
b)
Rubber
c)
Glass
d)
Silver
16.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
17.
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
18.
A volt is a unit of
a)
charge.
b)
electric potential.
c)
energy.
d)
work.
19.
The charge that stays on an object that can either repel or attract objects is
a)
static electricity
b)
conductor
c)
insulator
d)
force
20.
(Look at picture for question)
a)
A device that opposes the flow of electrons
b)
A device that allows easy flow of electrons
c)
A device that can be used as a battery
d)
Resistors do not exist
21.
Resistance is measured in ___.
a)
watts.
b)
amps.
c)
ohms.
22.
What is one problem with using a series circuit?
a)
It has a lot of series.
b)
If one goes down, they all go down!
c)
It doesn't work properly.
d)
There are no problems.
23.
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
24.
A charging system producing 14.5 Volts with a current flow of 43.5 Amps, what is the circuit resistance
a)
58 Amps
b)
0.33 Amps
c)
13 Amps
d)
1 Amp
25.
How do you calculate current
a)
Resistance X Voltage
b)
Voltage X Resistance
c)
Resistance ÷ Voltage
d)
Voltage ÷ Resistance
26.
The equivalent resistance (Req) in this circuit is
a)
100 ohms
b)
450 ohms
c)
400 ohms
d)
30 ohms
27.
Which do you expect to have the brightest light, if these bulbs are of identical resistance?
a)
1
b)
2
c)
3
d)
4
28.
If the current through the battery was 10A in this diagram. What would the current through each bulb be?
a)
10A
b)
5A
c)
20A
d)
0A
29.
The equivalent or total resistance (Req) in this circuit is
a)
25.7 Ω
b)
315 Ω
c)
0.0389 Ω
d)
2835 Ω
30.
The total current going through this circuit is
a)
0.05 amps
b)
0.1 amps
c)
0.35 amps
d)
0.2 amps
31.
The current going through the 90 ohm resistor is
a)
10 amps
b)
0.1 amps
c)
0.2 amps
d)
.06 amps
100 %
