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Electrical Circuits (Simple)

Total questions: 28

Worksheet time: 27mins

Name
Class
Date
1.
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 is divided between the three light bulbs.
2.
As resistors are added in series to a circuit, the total resistance will...
a)
increase
b)
decrease
c)
stay the same
3.

Keeping the voltage constant, as the resistance of a circuit increases, the current will...

a)

increase

b)

decrease

c)

stay the same

4.
In a parallel circuit which of the following is the same value throughout the circuit?
a)
Voltage
b)
Current
c)
Resistance
d)
Charge
5.
The current going through the 45 ohm resistor is 
a)
0.05 amps
b)
0.2 amps
c)
0.1 amps
d)
5 amps
6.
Pick the correct sentence.
a)
This circuit will work because it is a closed circuit.
b)
Energy will freely flow in this circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
7.
What will happen if one light bulb is removed from this circuit?
a)
The other bulbs will go out.
b)
The other bulbs will stay on
c)
The other bulbs will get dimmer.
d)
The battery will become stronger.
8.
Does this diagram represent a series or parallel circuit?
a)
series circuit
b)
parallel circuit
9.
The ____________ is the energy that flows from the battery, through the wire in it’s path through the circuit.
a)
Electric Current
b)
Conductor
c)
Electromagnet
d)
Insulator
10.

What would happen if an extra battery cell is added to a curcuit?

a)

A)The lights will glow dim

b)

The wire will glow

c)

The lights will glow brighter

d)

None of the above

11.
What kind of circuit is this?
a)
series
b)
parallel
12.
What kind of circuit is this?
a)
Series
b)
Consecutive
c)
Parallel
d)
Training
13.
A material in which electrons are not able to move easily 
a)
Circuit 
b)
Insulator 
c)
Resistance 
d)
Conductor
14.
Two types of circuits are
a)
parallel and magnetic
b)
electromagnetic and series
c)
series and parallel
15.

Measure of electric current.

a)

watt

b)

ohm

c)

volt

d)

amp

16.

Measure of resistance.

a)

watt

b)

ohm

c)

volt

d)

amp

17.
What does the switch do in a circuit?
a)
It supplies the power.
b)
It carries electricity.
c)
It opens and closes the circuit.
d)
It is an insulator.
18.

Provides more than one path for the electrons to follow.

a)

series circuit

b)

parallel circuit

c)

insulator

d)

conductor

19.

There is only one path for the electrons to follow.

a)

conductor

b)

insulator

c)

parallel circuit

d)

series circuit

20.
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. 
21.
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. 
22.
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
23.

If voltage remains constant and the current increases by a factor of 2, what will happen to the resistance?

a)

The resistance will decrease by a factor of 2.

b)

The resistance will decrease by a factor of 4.

c)

The resistance will increase by a factor of 2.

d)

The resistance will increase by a factor of 4.

24.

A voltmeter can measure

a)

A voltage drop

b)

current

c)

resistance

d)

brightness

25.

In a series circuit current (amps) must be the same everywhere.

a)

True, if a circuit has a current of 2A then it must be that same everywhere

b)

False, it will change after every resistor

c)

False, current changes before the battery

d)

True, it increase with time though

26.

The current through a 10.0-ohm resistor is 1.2 amperes. What is the potential difference across the resistor?

a)

12V

b)

13V

c)

8.3V

d)

0.12V

27.

Noel needs to know which direction electrons flow from a battery. Which statement about the flow of electrons is correct?

a)

Electrons flow from north to south because of Earth's magnetic field.

b)

Electrons flow from south to north because of Earth's magnetic field.

c)

Electrons flow from the positive terminal of a battery to the negative terminal of a battery.

d)

Electrons flow from the negative terminal of a battery to the positive terminal of a battery

28.

What is the SI unit for charge?

a)

Joules

b)

Coulombs

c)

Newtons

d)

Meters

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