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Circuits (PS M6)

Total questions: 45

Worksheet time: 40mins

Name
Class
Date
1.
this circuit is .....?
a)
open
b)
parallel
c)
closed
d)
The cutest little circuit evah!
2.
What kind of circuit is this?
a)
series
b)
parallel
3.
What type of circuit is show in the image?
a)
Series Circuit
b)
Parallel Circuit
4.
Which one will still function if one light bulb goes out?
a)
A-Series
b)
B-Parallel
c)
A-Parallel
d)
B-Seriese
5.

What is the unit of Electrical Power?

a)

Joule

b)

Watt

c)

Where

d)

Amp

6.

A kilowatt (kW) is how many watts?

a)

10

b)

50

c)

100

d)

1000

7.

A 200-W light bulb is connected across a 100-V dc power supply. What current will flow through this bulb?

a)

0.90 A

b)

0.36 A

c)

0.60 A

d)

2.0 A

8.

Which of the following two are circuit protection devices?

a)

Electrical plugs and CO2 cartridges

b)

CO2 cartridges and circuit breakers

c)

Fuses and circuit breakers

d)

Fuses and electrical plugs

9.

Circuit protection devices are used for which of the following purposes?

a)

To protect people

b)

To protect circuits

c)

To guard against hazardous conditions

d)

All of the above

10.

An electric circuit in which the current passes through a single path.

a)

Parallel Circuit

b)

Current Circuit

c)

Series Circuit

d)

Conductor Circuit

11.

The pathway through which electrical current flows

a)

Electric Circuit

b)

insulator

c)

Flows

d)

Electromagnet

12.

A path along which electric charges can flow

a)

Series Circuit

b)

Parallel Circuit

c)

Circuit

d)

Conductor

13.

Part of a circuit that controls the open-ness or closed-ness of the electric flow.

a)

Series Circuit

b)

Switch

c)

Parallel Circuit

d)

Generator

14.

An incomplete or broken circuit.

a)

Closed Circuit

b)

Open Circuit

c)

Cracked bulb Circuit

15.

A complete, connected circuit:

a)

Closed Circuit

b)

Conductor Circuit

c)

Open Circuit

16.

What type of circuit is this?

a)

series circuit

b)

parallel circuit

17.
Which of these best completes the circuit?
a)
rubber band
b)
metal nail
c)
leather shoelace
d)
wooden toothpick
18.
A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?
a)
plastic straw
b)
cotton string
c)
aluminum foil
d)
rubber eraser
19.
What material would be safest to use as an insulator to cover electrical wires?
a)
rubber
b)
tin
c)
aluminum
d)
water
20.
This image represents what type of circuit?
a)
open
b)
closed
c)
series
d)
parallel
21.
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
22.
What type of circuit is represented by the diagram?
a)
closed
b)
series
c)
open
d)
parallel
23.
If bulb 1 burns out, what will occur?
a)
bulbs 2 and 3 will go out
b)
bulbs 2 and 3 receive more volts
c)
bulbs 2 and 3 will stay lit
d)
nothing will happen
24.

The diagram shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut a the point shown by the arrow?

a)

0

b)

1

c)

2

d)

3

25.

A group of students built the circuit shown above. The lightbulb does not glow. Which statement explains this observation?

a)

The battery is not charged

b)

The lightbulb is not part of a complete circuit

c)

The circuit does not have a switch

d)

The bell uses most of the energy from the battery

26.

Students constructed a circuit using different-colored lightbulbs. What will happen if Switch 3 is closed and the other switches are left open?

a)

Only the white bulb will operate

b)

None of the bulbs will operate

c)

Only the white and yellow bulbs will operate

d)

Only the red and blue bulbs will operate

27.
What is a Parallel circuit? 
a)
Has only one path 
b)
Has more than one path 
c)
Allows energy to travel through easily 
d)
Has only one light bulb
28.
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
29.
When you flip a light switch on and off you are closing and opening a circuit.
a)
true
b)
false
30.
If you replace the paper clip with a plastic spoon, what happens?
a)
The bulb doesn't light
b)
The bulb is dimmer
c)
The wires get hot
d)
There is no change
31.
If you replace the paper clip with a plastic spoon, what is the plastic spoon acting as?
a)
A conductor
b)
A diode
c)
An insulator
d)
A switch
32.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
33.
A flow of electrons through a conductor is called:
a)
A river
b)
A spark
c)
An electron flow
d)
A current
34.
What is a common energy source for a circuit?
a)
Light bulb
b)
Battery
c)
Wire
d)
Switch
35.

Why is electrical wiring usually are covered with a layer of plastic?

a)

To make it look pretty

b)

To help electricity flow along the wire

c)

To make it safe

d)

To add more energy

36.

Why is electrical wiring usually made from copper?

a)

Because copper is shiny

b)

Because copper conducts electricity

c)

Because copper is not magnetic

d)

Because copper insulate electricity

37.

A material that does NOT let electricity pass through it is called ...

a)

An electrical conductor

b)

An electrical insulator

c)

An electrical source

d)

An electric appliance

38.

What is a circuit with several paths for electricity to flow?

a)

conductor

b)

series circuit

c)

parallel circuit

d)

open circuit

39.

What is a circuit that only has ONE path for electricity to flow?

a)

series circuit

b)

closed circuit

c)

parallel circuit

d)

light bulb

40.
An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —
a)
Point D to Point C
b)
Point B to Point C
c)
Point A to Point D
d)
Point B to Point D
41.
This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -
a)
the switch gives energy to the battery
b)
the buzzer is made of special plastic
c)
the wires are cooled by the surrounding air
d)
electricity can flow in a complete path
42.
Which bulbs will light?
a)
1 and 2
b)
2 and 3
c)
3 and 4
d)
4 and 2
43.

Follow the path.

Which image demonstrates a flow of electrical current ?

a)

Open Circuit

b)

Closed Circuit

44.

A Circuit is the pathway through which electricity flows.

a)

True

b)

False

45.

Match the following

a)
1.

Insulator

b)
2.

power source

c)
3.

conductor

d)
4.

load

e)
5.

Switch

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