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Open Closed Circuit

Total questions: 23

Worksheet time: 21mins

Name
Class
Date
1.

Electrical lights will not come on unless their electrical circuit is a --

a)

closed circuit

b)

open circuit

2.
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
3.

What would happen if the switch was opened?

a)

nothing, the light bulbs would still work because there is a complete path

b)

The light bulbs would not work because the path was broken

c)

the battery would loose energy

4.

The on switch shows

a)

An open circuit where electricity can flow

b)

A closed circuit that is also called complete

5.
A open circuit allows charges to flow. 
a)
True 
b)
False
6.
A circuit in which energy can freely flow.
a)
Closed Circuit
b)
Free Circuit
c)
Open Circuit
d)
Energy Circuit
7.

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.

8.

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.

9.
Would would best complete this circuit?
a)
A wire
b)
A switch
c)
A battery
d)
A light bulb
10.
What is the power source in this circuit?
a)
Lightbulb
b)
Switch
c)
Wires
d)
Battery
11.
A continuous path of conductors that allows electricity to pass through easily is called a(n)...
a)
Closed circuit
b)
Double circuit
c)
Open circuit
d)
Electric current
12.
What is a battery?
a)
switch
b)
power source
c)
insulator
13.
A student began building a circuit to light a bulb.  What else does the student need to produce light?
a)
a battery that has energy
b)
a wire that is insulated
c)
a switch that is open
d)
another bulb of the same size
14.

Which bulbs will light?

a)

1 and 2

b)

2 and 3

c)

3 and 4

15.
Lightbulbs use electricity to make light. What else do lightbulbs often give off?
a)
Food energy
b)
Heat Energy
c)
Solar Energy
d)
Wind Energy
16.

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)

to add more power to the circuit

17.
this is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
18.

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

19.
Which of these objects is an insulator?
a)
Copper Wire
b)
Paper Clip
c)
Steel Pole
d)
Rubber Gloves
20.

The rubber around the wire is-

a)

an insulator

b)

a conductor

21.

When the switch is closed, the light-

a)

turns on

b)

stays off

c)

burns out

22.

If the lights are off, the circuit is-

a)

open

b)

closed

23.
A current can flow without a power source.
a)
True
b)
False