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Simple Questions about Electrical Circuits Concepts

Total questions: 30

Worksheet time: 2hrs 41mins

Name
Class
Date
1.

The electric current has only one path to follow to and from the energy source.

a)

Parallel Circuit

b)

Open Circuit

c)

Series Circuit

d)

Closed Circuit

2.

Complete pathway made of conductors through which electric current can flow.

a)

Circuit

b)

Closed Circuit

c)

Series Circuit

d)

Parallel Circuit

3.

Contains two or more paths for electric charges to follow.

a)

Closed Circuit

b)

Series Circuit

c)

Open Circuit

d)

Parallel Circuit

4.

An electrical circuit that is not complete

a)

Series Circuit

b)

Open Circuit

c)

Circuit

d)

Closed Circuit

5.

A complete electrical connection around which

current flows or circulates.

a)

Closed Circuit

b)

Series Circuit

c)

Open Circuit

d)

Parallel Circuit

6.
In a parallel circuit if one light bulb goes OUT; then they ALL go out. TRUE OR FALSE?
a)
TRUE
b)
FALSE
7.
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.
8.
What is a Parallel circuit? 
a)
Has only one path 
b)
Has more than one path 
c)
Allows energy to travel through easily 
9.
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
10.

What is the power source in this circuit?

a)

Bulb

b)

Switch

c)

Wire

d)

Battery

11.

How could you make this circuit work?

a)

Close the switch

b)

Take out the bulbs

c)

Add another battery

d)

Add another bulb

12.
Choose the corrrect sentence.
a)
This circuit will work because it is an open circuit
b)
This circuit will work because it is a closed circuit.
c)
This circuit will NOT work because it is an open circuit.
d)
This circuit will NOT work because it is a closed circuit.
13.
Choose the correct sentence.
a)
This circuit will work because it is an open circuit.
b)
This circuit will work because it is a closed circuit.
c)
This circuit will NOT work because it is an open circuit.
d)
This circuit will NOT work because it is a closed circuit.
14.
Would would best complete this circuit?
a)
A wire
b)
A switch
c)
A battery
d)
A light bulb
15.
A pathway for electricity to travel is called___________
a)
current
b)
static electrcity
c)
circuit
d)
circle
16.
A continuous flow of electricity is called_____________
a)
series
b)
circuit
c)
static
d)
current
17.

Is the circuit in the picture open or closed?

a)

open

b)

closed

c)

neither

18.

Why is the light bulb not lit?

a)

the circuit is open because the switch is open

b)

the circuit is closed because the switch is closed

c)

the battery is dead and you need a new battery

d)

the wires are not connected to the battery

19.

Which circuits will allow the bulb to light?

a)

A and C

b)

Only B

c)

B, D, and E

d)

B and D only

20.

Mr. Reincke attached the parts as shown here and the bulb did not light. The most likely reason the bulb does not light is because-

a)

batteries can’t provide electric energy

b)

the switch must be open for electricity to flow

c)

the switch must be open for electricity to flow

d)

yarn does not conduct electricity

21.

If we touch a live wire carrying current, we get a shock. This is because our body is a(n)-

a)

conductor of electricity

b)

insulator of electricity

c)

source of electricity

d)

None of these

22.

True or False: A switch is necessary for a circuit to work.

a)

True

b)

False

23.

A light bulb will shine brighter when-

a)
An extra light bulb is added to the circuit
b)
An additional battery is added
c)
A smaller battery is used
d)
The switch is open in the circuit
24.

Which of these changes to the electric circuit shown will cause the light bulb to light up?

a)

Straightening the wire so that the current can flow more easily

b)

Adding a switch and more wire so that the current can flow more easily

c)

Turning one battery so that its positive end connects to the other battery's negative end

d)

Making the length of wire the same on both sides of the lightbulb

25.

Open the switch. What LEDs turn on?

a)

LED 5

b)

LED 2 and 5

c)

LED 3 only

d)

LEDS 1, 3 and 4

26.

Open switch 2. Which light does not work?

a)

White

b)

Blue

c)

Yellow

d)

Red

27.

Cut wire 6. What happens?

a)

Two lights turn off

b)

One light turns off

c)

All the lights work

d)

None of the lights work

28.

Cut wire 2. What happens?

a)

All the lights turn off

b)

None of the lights turn off

c)

One light turns off

d)

Two lights turn off

29.

Which operation results in only the blue bulbs working?

a)

Open switch 1

b)

Close switch 1

c)

Open switch 3

d)

Open switch 2 and 3

30.

Open the circuits below. Which of these circuits will have three lights still lit?

a)

The top circuit

b)

The middle circuit

c)

The bottom circuit

d)

All of the circuits

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