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Electricity

Total questions: 40

Worksheet time: 30mins

Name
Class
Date
1.

Electric current is defined as

a)

detect electric current

b)

negative terminal to positive terminal

c)

positive terminal to negative terminal

d)

the flow rate of electric charges through a conductor

2.
What is voltage measured in?
a)
Ω (Ohms)
b)
V (Volts)
c)
A (Amps)
d)
W (Watts)
3.

Which of the following is a conductor?

a)

wood

b)

rubber

c)

metal

d)

plastic

4.

Imagine you are creating a circuit. It works and the light bulb turns on. Then you add a piece of plastic to the circuit, and the light bulb does not turn on. We can infer that the plastic is

a)

an insulator

b)

a conductor

c)

an electron

d)

static electricity

5.

What is a device that supplies the power to an electric circuit (for example: a battery)?

a)

electron

b)

atom

c)

power source

d)

fuse

6.

What type of electric circuit only has ONE path for the electricity to flow?

a)

series

b)

parallel

c)

open

d)

none of the above

7.

Electrons will move easily through Aluminum. Based on this, we know Aluminum is a(n)

a)

conductor

b)

insulator

8.
A circuit made of wires, a lamp, a switch, and a cell is shown at the right. What change is needed for the lamp to glow? 
a)
The switch needs to be opened.
b)
The switch needs to be closed.
c)
The cell needs an insulator.
d)
The wire needs to be connected to the bottom of the cell.
9.
Which statement best explains why the lamp does not glow? 
a)
Circuit 1 is an open circuit.
b)
 Circuit 1 is a closed circuit.
c)
 The negative terminal of Circuit 1 is connected to the cell.
d)
The positive terminal of Circuit 1 is connected to the cell.
10.
Which statement best describes the circuit in the diagram?
a)
It is a series circuit.
b)
It is a parallel circuit.
c)
There are 2 paths.
d)
The circuit is opened.
11.
Two batteries in a circuit make the lights in the circuit brighter than one battery.
a)
true
b)
false
12.
If the lights are on, the circuit is
a)
closed
b)
open
13.
To complete a circuit the switch must be
a)
unattached
b)
open
c)
closed
14.

Which of the following items would conduct electricity?

a)

Aluminum ladder

b)

Metal screwdriver

c)

Wooden baseball bat

d)

Rubber flip flops

15.

which of the following materials are best used as insulators?

a)

Wood

b)

Rubber

c)

Metal

d)

Plastic

16.

What contribution did Thomas Edison make toward the study of electricity?

a)

He invented the light bulb

b)

He invented a generator that would produce electricity

c)

He discovered the nucleus of an atom

d)

He discovered that lightning is a form of electricity

17.

Many electrical wires are wrapped with a plastic coating because plastic is -

a)

More dense than copper

b)

Able to keep its shape

c)

Less expensive than steel

d)

A good insulator

18.

Who is the scientist that created the lightning rod?

a)

Michael Faraday

b)

Thomas Edison

c)

Benjamin Franklin

d)

George Washington

19.
Which of these substances conducts electricity the best?
a)
wood
b)
brick
c)
copper
d)
plastic
20.
____________ allows electricity to flow.
a)
A conductor
b)
An insulator
c)
A magnet
21.
Glass is a 
a)
conductor
b)
insulator
22.

Electric appliances have circuits.

a)

TRUE

b)

FALSE

23.

A buzzer produces sound.

a)

TRUE

b)

FALSE

24.

A circuit will not work if it has complete parts.

a)

TRUE

b)

FALSE

25.

Batteries store electrical energy.

a)

TRUE

b)

FALSE

26.

Removing the plug of an appliance with wet hands.

a)

SAFE practice

b)

DANGEROUS practice

27.

Putting liquids like water and juice away from an electric appliance.

a)

SAFE practice

b)

DANGEROUS practice

28.

Sticking your finger to an electric outlet.

a)

SAFE practice

b)

DANGEROUS practice

29.

What supplies the energy in a simple circuit?

a)

battery

b)

circuit

c)

switch

d)

wire

30.

A/an ________________ circuit has no breaks and the bulb will light up.

a)

open

b)

closed

31.

10. A/an _____________ circuit has a break and the bulb will not light up.

a)

open

b)

closed

32.

Will the light bulb light up if the switch remains open as shown?

a)

No, because the electric circuit is not complete.

b)

Yes, because the circuit will be complete.

c)

No, because the battery will push the electric current.

d)

Yes, because the circuit will be complete.

33.
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
34.
A material in which electrons are not able to move easily is called _______.
a)
Circuit 
b)
Insulator 
c)
Resistance 
d)
Conductor
35.
This is the symbol for a _____?
a)
switch
b)
light 
c)
battery
d)
wires
36.
What is this symbol for?
a)
light bulb
b)
switch
c)
battery
d)
resistor
37.
A pathway for electricity to travel is called___________
a)
current
b)
static electrcity
c)
circuit
d)
circle
38.
A continuous flow of electricity is called_____________
a)
series
b)
circuit
c)
static
d)
current
39.

What would best complete this circuit?

a)

A wire

b)

A switch

c)

A battery

d)

A light bulb

40.
This is the symbol for a _____?
a)
Lamp
b)
Water wheel
c)
Loudspeaker
d)
Motor

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