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Energy and Circuits

Total questions: 63

Worksheet time: 40mins

Name
Class
Date
1.

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

2.

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

3.
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
4.
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
5.
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.
6.

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

7.
Which of these materials is a good insulator?
a)
Plastic and metal
b)
Metal and rubber
c)
Plastic and rubber
8.
Metal is used to make electrical wires because_______.
a)
It allows an electric current to freely flow.
b)
It slows electric currents from flowing.
c)
It is very cheap.
d)
It is very expensive.
9.
What is the energy source for a circuit?
a)
Light bulb
b)
Battery
c)
Wire
d)
Switch
10.
What is it called when a circuit is complete?
a)
Closed circuit
b)
Light bulb circuit
c)
Open circuit
d)
Series circuit
11.
A student 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 flow of electricity can’t make a bulb light
c)
the switch must be open for electricity to flow
d)
yarn does not conduct electricity
12.
Electricity is the flow of _________.
a)
Protons
b)
Neutrons
c)
Electrons
13.
The best conductors for electricity are made of...
a)
wood
b)
plastic
c)
rubber
d)
metal
14.
wood is a _____?
a)
conductor
b)
insulator
15.
water is a______?
a)
conductor
b)
insulator
16.
A conductor is ____________
a)
something that allows electric current to flow easily
b)
something that limits the flow of electricity
17.
Electrical energy can make heat energy. 
a)
True
b)
False
18.
What material would be safest to use as an insulator to cover electrical wires?
a)
rubber
b)
tin
c)
aluminum
d)
water
19.

Why does the following circuit not work?

a)

The light bulb is broken

b)

The switch is closed

c)

The wood block is an insulator

d)

The battery is dead

20.

Why does the following circuit not work?

a)

The light bulb is broken

b)

The switch is closed

c)

The wood block is an insulator

d)

The battery is dead

21.

Which wire would you need to cut in order for the circuit to be incomplete (not work)?

a)

wire 1

b)

Wire 3

c)

wire 5

22.

Which wire would you need to cut in order for the circuit to be incomplete (not work)?

a)

wire 1

b)

Wire 3

c)

wire 5

23.

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

24.

Open switch 2. Which light does not work?

a)

White

b)

Blue

c)

Yellow

d)

Red

25.

Which of the following could be used to complete a circuit?

a)

Cloth

b)

Cardboard

c)

Rubber Band

d)

Penny

26.

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

27.

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

28.

Which two wires can be cut and still allow all of the devices to work?

a)

Wires 2 and 5

b)

Wires 1 and 4

c)

Wires 5 and 6

d)

Wires 2 and 3

29.

Electricity can often cause sparks that cause fires. What would be the best substance to insulate a wire?

a)

Copper

b)

Steel

c)

Wood

d)

Plastic

30.

What needs to be changed to make this circuit work?

a)

Add an extra wire

b)

Flip one of the batteries

c)

Reconnect the wires to the lightbulb so that they are both touching the same connector

31.

Cut the wire in the space shown. How many bulbs stay lit?

a)

1

b)

2

c)

3

d)

0

32.

When the lights are on, electricity travels in ....

a)

Parallel circuit

b)

Incomplete path

c)

Complete path

d)

i like tortles

33.

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

34.

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

35.

The circuits below are an example of ...

a)

Series circuits

b)

Simple circuits

c)

Parallel circuits

d)

Insulated circuits

36.

Which of these is required to complete a circuit

a)

A wire made of only insulated material

b)

A switch

c)

A lightbulb

d)

A power source

37.

In a video we watched in class, a crazy dude named Bob was able to cook a steak with only electricity. Why was this possible?

a)

i like tortles

b)

The circuit was incomplete

c)

Electrical currents generate thermal energy

d)

The mechanical energy of the wires hitting the steak caused friction

38.

What energy form is being used?

a)

Sound

b)

Thermal

c)

Light

d)

Mechanical

39.

What energy form is being used for us to hear the bird?

a)

Light

b)

Thermal

c)

Sound

d)

Electrical

40.

What energy form is being used for the boy to eat?

a)

Mechanical

b)

Thermal

c)

Light

d)

Sound

41.
What energy form is this? 
a)
Mechanical
b)
Light
c)
Sound
d)
Electrical
42.
What energy form is this? 
a)
Light, Thermal, Sound
b)
Electrical
c)
Light
43.

What energy form is being used to help the girl win the race?

a)

Sound

b)

Electrical

c)

Light

d)

Mechanical

44.

What energy form is being used for the concert?

a)

Sound

b)

Light

c)

Electrical

45.
What energy form is this? 
a)
Sound
b)
Electrical
c)
Thermal
d)
Light
46.
What energy form is this? 
a)
Sound
b)
Thermal
c)
Light and Electrical
d)
Mechanical
47.

What energy form is used to cook with?

a)

Sound

b)

Electrical

c)

Thermal

d)

Mechanical

48.
What energy form is this? 
a)
Mechanical
b)
Sound
c)
Thermal
49.

What type of energy is needed talk to a friend?

a)

Light and Mechanical

b)

Sound and Thermal

c)

Mechanical and Sound

d)

Mechanical and Thermal

50.

A flashlight uses what type of energy to help you see in the dark?

a)

Mechanical

b)

Sound

c)

Light

d)

Thermal

51.

What type of energy is NOT needed for our class to take a test?

a)

Thermal

b)

Electrical

c)

Light

d)

Mechanical

52.

When I bake cookies, what types of energy do I need to use?

a)

Electrical, Thermal, Light

b)

Thermal, Electrical

c)

Sound, Light, Mechanical

53.

Rub your hands together. Which form of energy is produced from the friction when you rub your hands together?

a)

mechanical

b)

electrical

c)

light

d)

thermal

e)

sound

54.

You turn on a lamp that is on top of your desk. When the lamp is on, electrical energy changes to what other form of energy?

a)

mechanical

b)

electrical

c)

light

d)

thermal

e)

sound

55.

Pablo wants to know how long a battery will power a circuit. He connects the battery to a circuit. Which form of energy will stop being produced when the energy in the battery runs out?

a)

mechanical

b)

electical

c)

light

d)

thermal

e)

sound

56.

The toy bunny is battery operated. When it turns on, it moves around banging on the drum. Which type of energy is the movement of the rabbit considered?

a)

mechanical

b)

electrical

c)

lights

d)

thermal

e)

sound

57.

What energies are needed for this fan to work ?

a)

electrical and thermal

b)

electrical and mechanical

c)

mechanical and sound

d)

mechanical and thermal

58.
What form of energy is being used when a person pushes heavy boxes across the floor? 
a)
Electrical energy
b)
Mechanical energy
c)
Heat energy
d)
Sound energy
59.

Which form of energy is produced when a guitar string vibrates?

a)

Sound energy

b)

Electrical energy

c)

Chemical energy

d)

Light energy

60.

What is energy?

a)

The ability to do work

b)

A force

c)

Electricity

d)

The ability to transform work

61.

What is energy?

a)

The ability to do work

b)

A force

c)

Electricity

d)

The ability to transform work

62.
What kind of energy is represented in this picture?
a)
Thermal
b)
Potential
c)
Nuclear
d)
Mechanical
63.
What kind of energy does this device use?
a)
Chemical
b)
Electrical
c)
Thermal
d)
Chemical

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