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Electrical Energy and Energy Transformations

Total questions: 50

Worksheet time: 47mins

Name
Class
Date
1.

the flow of electricity in a wire or other conductor is what type of energy

a)

chemical electricity

b)

current electricity

c)

static electricity

d)

mechanical energy

2.
Magnetism produced by an electric current
a)
battery
b)
electromagnetism
c)
open circuit
d)
closed circuit
3.

a buildup of electric charges on an object

a)

static electricity

b)

electric force

c)

electrical circuit

d)

electric discharge

4.

objects with like charges will...

a)

attract

b)

repel

c)

get closer together

d)

do nothing because they are neutral

5.

Objects with unlike charges will...

a)

repel

b)

attract

c)

move away from each other

d)

do nothing because they are neutral

6.

a complete loop without any breaks in it through which electric current flows

a)

open circuit

b)

closed circuit

7.

an electrical circuit with at least one break in the loop

a)

open circuit

b)

closed circuit

8.

Which of the following are Conductors of Electricity?

(multiple answers)

a)

copper

b)

rubber

c)

aluminum

d)

wood

e)

gold

9.

Which of the following are Insulators of Electricity?

(multiple answers)

a)

wood

b)

rubber

c)

dry air

d)

steel

e)

water

10.

Which of the following are Insulators of Electricity?

(multiple answers)

a)

glass

b)

silver

c)

copper

d)

many plastics

e)

cotton

11.

Which of the following are Conductors of Electricity?

(multiple answers)

a)

water

b)

cloth

c)

sand

d)

steel

e)

graphite (mineral)

12.

Usually, the electric charge that moves is the _______. They can move from one object to another, causing the material to take on a temporary change.

a)

electron

b)

proton

c)

static

13.

True or False, Lightning is a form of static electricity.

a)

True

b)

False

c)

Both

d)

Neither

14.

When a balloon is rubbed on clothes it acquires a charge by ___________.

a)

sound energy

b)

gravity

c)

Friction

d)

magnetism

15.
Which device would have the main function of converting electrical energy into kinetic energy?
a)
light bulb
b)
remote control car
c)
TV
d)
toaster
16.
Which of the following forms of energy are BEST represented by a lit light bulb? 
a)
chemical, light and potential
b)
heat, kinetic and light
c)
electrical, kinetic and potential
d)
electrical, light and heat
17.

This circuit is .....?

a)

open

b)

parallel

c)

closed

18.
This circuit is...?
a)
open
b)
closed
c)
parallel
d)
all of the above
19.
What types of charges attract?
a)
Positive and Positive
b)
Positive and Neutral
c)
Negative and Neutral
d)
Positive and Negative
20.
Most atoms have a _________________ charge
a)
positive
b)
neutral
c)
negative
d)
all atoms are different in charge
21.
In what direction do the electrons flow in a circuit with a battery as the energy source?
a)
clockwise
b)
counterclockwise
c)
from positive end of the battery around the circuit to the negative end
d)
from negative end of the battery around the circuit to the positive end
22.
In most electrical circuits, the pathway is made of:
a)
Wood
b)
Plastic
c)
Metal
d)
Static
23.
Pick the correct sentence to describe this circuit.
a)
This circuit will work because it is a closed circuit.
b)
It is a complete series circuit.
c)
This circuit will not work because there is no energy source.
d)
This circuit will not work because there is no switch.
24.

Electricity can only flow if a circuit is...

a)

Simple

b)

Incomplete

c)

Open

d)

Closed

25.

If one battery is facing another battery and both positives are touching, will the circuit work?

a)

Yes

b)

No

c)

yes, but only if the switch is closed

d)

sometimes

26.

What supplies the electrical energy in a circuit?

a)

A. the wires

b)

B. the lightbulb

c)

C. the battery

d)

D. the switch

27.

Will the lightbulb light up in the circuit above?

a)

A. No, the circuit in not closed.

b)

B. Yes, the penny is a good insulator.

c)

C. Yes, the penny is a good conductor.

d)

D. No, the penny blocks the flow of electricity.

28.

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

a)

A. The battery is not charged.

b)

B. The lightbulb is not part of a closed circuit.

c)

C. The circuit does not have a switch.

d)

D. The bell uses most of the energy from the battery.

29.

Look at the diagram. What is the term for "A"?

a)

Conductor

b)

Switch

c)

Transformer / Load

d)

Energy Source

30.

Look at the diagram. What is the term for "B"?

a)

Conductor

b)

Switch

c)

Transformer / load

d)

Energy Source

31.

Look at the diagram. What is the term for "D"?

a)

Conductor

b)

Switch

c)

Transformer / load

d)

Energy Source

32.
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
33.
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
34.
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.
35.

Which is an example or examples of a load? choose all that apply

a)

Kite

b)

Computer

c)

Bread

d)

Lamp

e)

fan

36.
Will this configuration of a complete circuit and light a bulb?
a)
yes
b)
no
37.
Will this configuration of a complete circuit light a bulb?
a)
yes
b)
no
38.

Which is true about atoms? Choose all that apply.

a)

protons and neutrons are in the nucleus

b)

electrons move around the nucleus

c)

electrons have a negative charge and protons have a positive charge.

d)

protons move around the nucleus and electrons and neutrons are in the center,

e)

neutron have a negative charge

39.
Some students observing a classroom device being used, noticed the below energy transformations. 
Electrical → Mechanical → Sound
Which device were the students most likely observing?
a)
A triple beam balance measuring an object’s mass.
b)
A pencil sharpener plugged into a wall outlet.
c)
A projector displaying a diagram on the screen.
d)
A working flashlight used to light up a dark corner.
40.
The picture shows a microwave oven. As a microwave oven is operated, electrical energy is transformed into all of the following types of energy EXCEPT —
a)
Solar
b)
Light
c)
Thermal
d)
Mechanical
41.

Electrical charges building up in clouds and then discharging, is one way

a)

that thunder occurs

b)

that lightning occurs

c)

that low pressure system occurs

d)

that a tornado occurs

42.

Ms Pippin rubbed two balloons with a piece of wool. What will happen when the balloons are brought near each other?

a)

The balloons will repel each other.

b)

The balloons will attract each other.

c)

The balloons will become positively (+) charged.

d)

The balloons will pop.

43.

the negatively charged particle in an atom, moves freely, can be released, shared, or “stolen” from an atom is called a/an

a)

proton

b)

neutron

c)

electron

d)

atom

44.

Will the balloons ATTRACT or REPEL each other?

a)
b)
45.
The girl's hair and the comb are attracting  one another.  The hair and the comb have
a)
opposite charges
b)
like charges
46.
Atoms may have protons which carry a...
a)
positive charge
b)
negative charge
c)
neutral or no charge
d)
opposite
47.

Ms Pippin rubbed one balloon with a piece of wool. What will happen when that balloon is brought near another balloon?

a)

The balloons will repel each other.

b)

The balloons will attract each other.

c)

The balloons will become positively (+) charged.

d)

The balloons will pop.

e)

nothing will happen because the balloons have a neutral charge

48.

A lamp is plugged into a wall outlet. Which sentence explains what happens to the electric energy as the light shines?

a)

The electric energy gets used up.

b)

The electric energy changes into light and heat energy and is destroyed.

c)

The electric energy is created again after it produces light and heat energy.

d)

The electric energy changes into light and heat energy and is not destroyed.

49.

Students built a simple circuit connecting a battery to a light bulb. Which energy transformations happen when the students close the circuit and the bulb lights up?

a)

Chemical to light to electrical

b)

Electrical to chemical to light

c)

Chemical to electrical to light

d)

light to electrical to chemical

50.

The diagram shows an electric circuit with four bells that a student plans to build. When the student connects the wire as shown, which of the bells will ring?

a)

Bell 1 only

b)

Bells 1 and 4 only

c)

Bells 3 and 4 only

d)

Bells 1, 2, 3, and 4

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