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Power To The People

Total questions: 76

Worksheet time: 1hrs 4mins

Name
Class
Date
1.

A student builds a circuit made up of a battery, two light bulbs, and a switch. What will the student most likely observe in this circuit?

a)

Light bulb 1 and light bulb 2 will both be on

b)

Light bulb 1 will be off, but light bulb 2 will be on

c)

Light bulb 1 and light bulb 2 will both be off

d)

Light bulb 1 will be on, but light bulb 2 will be off

2.

The diagram shows a series circuit with three lit bulbs. How many of the bulbs will remain lit if the wire is cut a the point shown by the arrow?

a)

0

b)

1

c)

2

d)

3

3.

A string of lights with small bulbs is shown below. The bulbs are connected by wire that is covered in an insulator. When the lights are on, electricity travels in....

a)

a complete circuit

b)

a sound wave

c)

a light ray

d)

an incomplete path

4.
In the picture, 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
d)
There is no charge
5.

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 insulates electricity

6.
A fifth grade class constructed this circuit.  Which of these objects most likely made the light glow when connected to points X and Y?
a)
plastic straw
b)
cotton string
c)
aluminum foil
d)
rubber eraser
7.

Describe a series circuit.

a)

a circuit that has multiple branches

b)

a circuit that has one path

c)

a circuit that dead ends after a light bulb

8.

What is a parallel circuit?

a)

a continuous loop

b)

a circuit with one path

c)

a circuit with multiple branches for each individual appliance or light

9.

Will the light bulbs light up in this image?

a)

Yes, both of them will

b)

Yes, but only the one on the right

c)

No, neither of them will

d)

Yes, but only the one on the left

10.

What type of circuit is this an image of?

a)

series circuit

b)

parallel circuit

11.

In this image is a...

a)

series circuit

b)

parallel circuit

12.

Is this a working circuit?

a)

Yes

b)

No

c)

I'm not sure, I would need to test it myself.

13.

Will this circuit light the bulbs?

a)

Yes, both will light up

b)

Yes, but only the one on the right

c)

Yes, but only one on the left

d)

No, neither of the bulbs will light up

14.
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
15.
Is the following photo of an open circuit or closed circuit? 
a)
A closed circuit which allows electricity to flow
b)
An open circuit which does not allow electricity to flow
16.

The flow of electricity is called...

a)

circuit

b)

load

c)

electrical current

d)

power source

17.
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.
18.

What is missing from this circuit? Why would the light bulbs be off?

a)

The battery, there is no power for the circuit to work.

b)

The switch is open, so the circuit is broken.

c)

The third light bulb, that is needed to complete the circuit.

d)

The wires are not connected properly.

19.

What will most likely happen if you add an additional battery to a circuit?

a)

the bulb will shine half as bright as it did with one battery

b)

the bulb will shine the same

c)

the bulb will shine brighter than it did with one battery

d)

the bulb will not shine

20.

Area around a magnet in which magnetic forces can act

a)

magnetic field

b)

magnets

c)

magnetic pole

21.

an object that attracts certain kinds of metals, such as iron 

a)

magnetic field

b)

magnets

c)

magnetic pole

22.

 the end of a magnet, where magnetic forces are greatest

a)

magnetic field

b)

magnets

c)

magnetic pole

23.

Is the image showing magnets repelling or attracting another magnet?



(a)  

24.

What are the two magnetic poles

(a)  

25.

Which of these substances conducts electricity the best

a)

wood

b)

brick

c)

copper

d)

plastic

26.

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

27.

What is a battery?

a)

switch

b)

power source

c)

insulator

28.

Where is the strongest attraction force of the magnet?

a)

at the poles

b)

in the middle

c)

above the magnet

d)

below the magnet

29.

The force of magnetism is stronger when magnets are ______________.

a)

cold

b)

round

c)

closer together

d)

farther apart

30.

A magnetic field is a force field created by

a)

gravity

b)

force

c)

magnets

31.

Energy due to motion

a)

kinetic

b)

potential

32.

A north pole and a south pole will attract each other.

a)

True

b)

False

33.
True or False: All metals stick to magnets.
a)
True
b)
False
34.

What will happen when these magnets are brought close together?

a)

They will attract each other.

b)

They will repel each other.

c)

Both the magnets will turn to the left.

d)

Both the magnets will turn to the right.

35.
What do magnets stick to?
a)
copper
b)
wood
c)
iron
d)
plastic
36.
Magnetism is a type of ____________
a)
force
b)
book
c)
plant
d)
animal
37.
Which object would a magnet attract?
a)
a glass bottle
b)
a piece of paper
c)
a metal paper clip
compass
d)
a rubber eraser
magnetic field
38.
The further two magnets are apart, the __________________ the force of magnetism.
a)
stronger
b)
weaker
c)
same
39.
Two like charges
a)
 neutralize each other.
b)
repel each other. 
c)
must be neutrons. 
d)
attract each other.
40.

What charge is the proton?

a)

positive

b)

no charge (neutral)

c)

negative

d)

Senaida-charged

41.

What charge is the electron?

a)

Logan-charged

b)

negative

c)

positive

d)

no charge (neutral)

42.

What charge is the neutron?

a)

no charge (neutral)

b)

positive

c)

negative

d)

Katlyn-charged

43.
Two oppositely charged particles are held in place near each other. When the particles are released, what will most likely happen?
a)
the will accelerate towards each other
b)
they will accelerate away from each other
c)
they will move towards each other at a constant speed
d)
they will move away from each other at a constant speed
44.
The Electric Force is strongest when charges are...
a)
close together
b)
far apart
c)
the electric force is constant everywhere
45.

Is a metal cookie sheet a conductor or an insulator?

a)

Conductor

b)

Insulator

46.

Heat transfer that occurs when objects of different temperatures are touching

a)

Radiation

b)

Convection

c)

Conduction

47.

The only heat transfer that can occur through empty space. It travels through electromagnetic waves.

a)

Conduction

b)

Convection

c)

Radiation

48.

As the ball is dropped, the potential energy decreases while the kinetic energy increases however the amount of energy stays the same.

a)

True

b)

False

49.
Which of the following best describes the energy transformations that occur when a flashlight that runs on batteries is turned on?
a)
chemical → light → electrical
b)
electrical → light → chemical
c)
light → electrical → chemical
d)
chemical → electrical → light
50.
The Theory of the Conservation of Energy states -
a)
Energy can be created, just not destroyed. It changes its form from one type to another.
b)
Energy can never be created nor destroyed. It can only change its form from one type to another.
c)
The total energy in our Universe changes, as different forms of energies can be transformed from each other under certain circumstances.
d)
Energy transformations do not passively occur in our lives, rather we actively make use of energies and transform energies.
51.
Which kind of energy change occurs when a candle is burning?
a)
Chemical to light.
b)
Light to electrical.
c)
Solar to heat.
d)
Chemical to electrical.
52.

The stored energy of an object is called ______?

a)

flowing energy

b)

kinetic energy

c)

potential energy

d)

sun energy

53.
The Electrical Energy of the stove is transferred to _____ Energy.
a)
Solar
b)
Thermal
c)
Potential
d)
Electrical
54.
Energy transformations occur when...
a)
energy is created through conduction
b)
energy changes from one form to another
c)
two forces slide together that are touching
d)
a chemical reaction takes place
55.
The faster an object moves, the ________ kinetic energy it has. 
a)
more
b)
less
c)
none of the above
d)
all of the above 
56.

Energy stored because of gravity is called:

a)

Gravitational Potential Energy

b)

Kinetic Energy

c)

Mechanical Advantage

d)

Chemical Energy

57.

According to the law of conservation of energy, energy can be created or destroyed.

a)

True

b)

False

58.

A stretched rubber band represents what type of potential energy?

a)

gravitational potential energy

b)

elastic potential energy

c)

chemical potential energy

d)

kinetic potential energy

59.

What is the wasted energy here? (we want movement)

a)

heat, light and sound

b)

chemical, electrical and movement

c)

Sound, sound and sound

60.

What is the main energy transfer that happens in a gas heater?

a)

Electrical energy to heat energy

b)

Chemical potential energy to heat energy

c)

Kinetic energy to heat energy

d)

Chemical potential energy to kinetic energy

61.

What is “useful output” energy?

a)

Energy that is used by the appliance

b)

Useful energy that is put into the system

c)

Energy that is produced that we cannot use

d)

Energy that is produced that we can use to do work

62.

In an electric drill, the input energy is electrical energy. Which of these is wasted output energy?

A – Sound energy B – Kinetic energy C – Heat energy

a)

A, B

b)

A, C

c)

B, C

d)

B

63.
In energy transformations, "wasted energy" usually takes what form?
a)
heat
b)
chemical energy
c)
light
d)
sound waves
64.

When is energy lost?

a)

During transformations only

b)

During transformations and transfers

c)

During transfers only

d)

During GPS outages

65.
The house illustrated here uses panels on the roof to collect a natural resource and convert it into electricity that can be used.
Which alternative energy source does this house use?
a)
Water
b)
Wind
c)
Solar
d)
Geothermal
66.

A kettle uses 100J of electrical energy to produce 7J of sound energy and 93J of thermal energy. How efficient is the kettle?

a)

100%

b)

7%

c)

93%

d)

95%

67.

A washing machine uses 250J of electrical energy to produce 125J of useful energy. How efficient is it?

a)

5%

b)

50%

c)

55%

d)

100%

68.

Which form of energy is represented in this image?

a)

kinetic

b)

thermal

c)

potential

d)

radiant

69.
At which point is potential energy greatest?
a)
W
b)
X
c)
Y
d)
Z
70.
Which 2 letters have the most kinetic energy
a)
W & Y
b)
X & Z
71.

The SI Unit for Energy is

a)

Joule

b)

Potential

c)

Calorie

d)

Kilojoule

72.

Heat energy is also called ______ energy.

a)

chemical

b)

electrical

c)

mechanical

d)

thermal

73.
The process of energy changing from one form into another
a)
efficency
b)
law of conservation of energy
c)
energy transformation
d)
thermal energy
74.
A material that reduces or prevents the transfer of energy.
a)
conductor
b)
conduction
c)
radiation
d)
insulator
75.
A material that transfers energy easily.
a)
insulator
b)
heat
c)
conduction
d)
conductor
76.
Efficiency is...
a)
The percentage of energy that is actually used to do work
b)
The stuff in the walls that keeps energy in

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