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Unit Exam Study Guide - Electricity/Magnetism/Spectrum

Total questions: 125

Worksheet time: 2hrs 43mins

Name
Class
Date
1.

How are different types of radiation arranged along the electromagnetic spectrum?

a)

By how fast they travel

b)

By their sources

c)

By the amount of energy they carry

d)

By how radioactive they are

2.

Indicate the electromagnetic waves that are longer than Visible light.

a)

Ultraviolet

b)

Infrared

c)

X ray

d)

Microwaves

3.

Electromagnetic waves all have the same __________ and _______________.

a)

wavelength and speed

b)

speed and amplitude

c)

Frequency and amplitude

d)

Amplitude and wavelength

4.

What type of wave has the largest wavelength and the lowest frequency on the electromagnetic spectrum?

a)

Radio

b)

Micro

c)

Gamma

d)

X ray

5.

Which electromagnetic waves are useful for Television?

a)

Gamma

b)

x ray

c)

radio

d)

microwave

6.

________________ have the highest energy and shortest wavelength of all electromagnetic waves.

a)

Gamma

b)

X Ray

c)

Radio

d)

Microwaves

7.

Electromagnet waves transfer ____________ without matter.

a)

information

b)

energy

c)

x rays

d)

medium

8.

As the wavelength of an electromagnetic wave gets LONGER, the frequency gets ____________.

a)

Lower

b)

Higher

c)

does not change

d)

doubles

9.
Which has the SHORTEST wavelength and, therefore, the highest frequency/most energy
a)
Radio waves
b)
Ultraviolet Rays
c)
Gamma Rays
d)
X-rays
10.
Which has the LONGEST wavelength and, therefore, the lowest frequency/energy
a)
Gamma Rays
b)
Radio Waves
c)
Visible Light
d)
Infrared rays
11.
Which of the following electromagnetic waves has the lowest energy?
a)
gamma ray
b)
infrared wave
c)
visible light wave
d)
microwave
12.

The name for the range of electromagnetic waves placed in order of increasing frequency is...

a)

Electromagnetic Spectrum

b)

Electromagnesis

c)

Visible light spectrum

d)

The range of light

13.

As frequency increases on the electromagnetic spectrum, what happens to the wavelength?

a)

It stays the same

b)

It decreases

c)

It increases

d)

It doubles

14.

Which of the following is not in the electromagnetic spectrum?

a)

Light waves

b)

Sound waves

c)

Radio Waves

d)

X-rays

15.

Which EM waves have the longest wavelength?

a)

radio

b)

x-rays

c)

ultraviolet

d)

gamma rays

16.

Which EM waves have the shortest wavelength?

a)

radio

b)

x-rays

c)

ultraviolet

d)

gamma rays

17.

Which EM waves are invisible? (more than one correct answer)

a)

radio

b)

visible

c)

ultraviolet

d)

gamma rays

18.

Which EM waves are have a SHORTER wavelength than visible?

a)

radio

b)

none

c)

infrared

d)

x-rays

19.

Which EM waves are have the lowest frequency?

a)

radio

b)

none

c)

infrared

d)

x-rays

20.

Which EM waves are have the highest energy & are the most dangerous?

a)

radio

b)

gamma rays

c)

infrared

d)

x-rays

21.

Which color waves have the lowest frequency?

a)

red

b)

yellow

c)

green

d)

violet

22.

Which color waves have the shortest wavelength?

a)

red

b)

yellow

c)

green

d)

violet

23.

What happens to frequency when wavelength decreases?

a)

stays the same

b)

decreases

c)

increases

d)

There is no relationship between wavelength & frequency.

24.

Which type of electromagnetic wave travels fastest through a vacuum?

a)

radio

b)

gamma rays

c)

visible light

d)

They all travel at the same speed.

25.

The diagram shows a person observing a thunderstorm located several kilometers away. The person hears the thunder several seconds after seeing the lightning. Which statement accurately explains the difference in observations of sound and light by the observer?

 

a)

Human eyes see light faster than their ears can hear sound.

b)

The medium the waves are traveling through is different for each type of wave.

c)

Light waves travel faster than sound waves.

d)

Sound waves travel faster than light waves.

26.

The picture below shows a ringing bell inside a vacuum jar. As air is pumped from the vacuum jar, the sound level of the ringing bell will decrease until it can no longer be heard.

This happens because air must be present in the jar in order for

a)

sound to be transferred

b)

electricity to flow through the wires

c)

the rubber to seal the jar

d)

the bell clanger to vibrate

27.

The diagram below shows a light ray. In this diagram, the light ray is being

a)

 transmitted

b)

absorbed

c)

reflected

d)

refracted

28.

The diagram below shows a pencil in a glass of water. When viewed from the side, the pencil appears to be broken. What process causes this to happen?

a)

absorption

b)

evaporation

c)

reflection

d)

refraction

29.

What do electromagnetic waves NOT need to transfer energy?

a)

matter

b)

speed

c)

wavelength

d)

frequency

30.

What type of electromagnetic wave has a higher frequency than visible light and a larger wavelength than x-rays

a)

Infrared

b)

Gamma

c)

visible

d)

Ultraviolet

31.

Indicate the electromagnetic waves that are longer than Visible light.

a)

Ultraviolet

b)

Infrared

c)

X ray

d)

Microwaves

32.

Electromagnetic waves can travel through the vacuum of (a)   .

33.

Electromagnetic waves all have the same __________ and _______________.

a)

wavelength and speed

b)

speed and amplitude

c)

Frequency and amplitude

d)

Amplitude and wavelength

34.

What type of wave has the largest wavelength and the lowest frequency on the electromagnetic spectrum?

a)

Radio

b)

Micro

c)

Gamma

d)

X ray

35.

In the visible light waves what color has the highest frequency electromagnetic waves?

a)

Red

b)

Violet

c)

Green

d)

Yellow

36.

Which electromagnetic waves are useful for Television?

a)

Gamma

b)

x ray

c)

radio

d)

microwave

37.

The medical profession uses _______ to sterilize medical equipment - just like the google cabinet in the science classroom.

a)

Infrared

b)

x ray

c)

Gamma

d)

Ultraviolet

38.

Heat seeking missiles use _____________ electromagnetic technology.

a)

Gamma

b)

X ray

c)

Microwave

d)

Infrared

39.

________________ have the highest energy and shortest wavelength of all electromagnetic waves.

a)

Gamma

b)

X Ray

c)

Radio

d)

Microwaves

40.

Electromagnet waves transfer ____________ without matter.

a)

information

b)

energy

c)

x rays

d)

medium

41.

As the wavelength of an electromagnetic wave gets LONGER, the frequency gets ____________.

a)

Lower

b)

Higher

c)

does not change

d)

doubles

42.

Which wavelengths of the EM spectrum are dangerous to life?

a)

radio, micro and gamma

b)

gamma, infrared, and UV

c)

Infrared, UV and X Rays

d)

UV, X rays and Gamma

43.

The lowest point on a wavelength is a(n) ____________.

a)

value

b)

trough

c)

crest

d)

medium

44.

The distance between two crests or two troughs is defined as _________________

a)

medium

b)

wavelength

c)

frequency

d)

amplitude

45.
What is a conductor?
a)
 A material that allows electricity to flow through it.  The circuit is complete. 
b)
A material that does not allow electricity to flow through.  It stops the flow of electricity.
c)
A light switch.
46.
The wire that gives off the light in a light bulb.
a)
fahnestock clip
b)
support wires
c)
filament
47.
The form of energy that can produce light, heat, motion, and magnetic force.
a)
electricity
b)
water
c)
grass
48.
Parallel Circuit
a)
Electricity has more than one way to travel through the circuit.  The light bulb burns the longest.
b)
Lightbulb burns the brightest in this circuit.
c)
railroad tracks
49.
An example of an insulator is?
a)
metal
b)
plastic
c)
brass
d)
aluminum
50.
The circuit that has only one path for electricity to travel around.
a)
parallel circuit
b)
series circuit
c)
no circuit
51.
The act of going around. A system that connects electrical devices so they will operate is?
a)
skeleton
b)
mystery box 
c)
circuit
52.
What holds the filament in a lightbulb?
a)
glass bulb suport
b)
support wires
c)
wire attachment point
53.
Which idea is NOT a trouble-shooting step to find out why the electric circuit is not working?
a)
Test the wires, are they tightly connected to the fahnestock clips?
b)
Are the batteries lined up negative to positive?
c)
Is the lightbulb big enough?
54.
A unit used to measure the electric potential of a battery is called...
a)
current
b)
electricity
c)
volt
55.
An example of a conductor is?
a)
metal paperclip
b)
glass marble
c)
wooden golf tee
56.

Why 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

57.
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
58.
An outlet in a wall and a battery are examples of __________.
a)
Power source 
b)
Load
c)
Energy pathway
d)
ALL of them 
59.
The light bulb in the circuit is an example of _______. 
a)
Load
b)
Battery source
c)
Energy pathway
d)
All of them
60.
Which will light a bulb?
a)
A battery and a paper clip
b)
A battery and a wire
c)
A paper clip and a wire
d)
A switch and a wire
61.

All matter is made up of...

a)

atoms

b)

electricity

c)

batteries

62.

What are the two ends of a battery called?

a)

south and north

b)

positive and negative

c)

Santa and Reindeer

63.

Which of the following is a type of circuit?

a)

Bulb Circuit

b)

Triple Circuit

c)

Parallel Circuit

64.

What type of circuit is this?

a)

Parallel Circuit

b)

Open Circuit

c)

Series Circuit

65.

What type of circuit is this?

a)

Parallel Circuit

b)

Open Circuit

c)

Series Circuit

66.
wood is a _____?
a)
conductor
b)
insulator
67.
Silver is a _____?
a)
insulator
b)
conductor
68.
A material in which electrons are able to move easily
a)
Circuit
b)
Insulator 
c)
Resistance 
d)
Conductor 
69.
this circuit is .....?
a)
open
b)
parallel
c)
closed
d)
The cutest little circuit evah!
70.
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
71.
Which of these substances conducts electricity the best?
a)
wood
b)
brick
c)
copper
d)
plastic
72.
What is the power source for this circuit?
a)
Battery
b)
Electric socket
c)
Wires
d)
Magic
73.
An object through which electrons can easily flow is called a(n) ___________.
a)
Conductor
b)
Insulator
74.
Which one is a conductor? 
a)
wood 
b)
iron 
c)
plastic spoon 
d)
paper 
75.
If u add more batteries to your circuit with one light bulb it will get brighter. 
a)
True
b)
False 
76.
A circuit in which energy can freely flow.
a)
Closed Circuit
b)
Free Circuit
c)
Open Circuit
d)
Energy Circuit
77.
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.
78.
Which will light a bulb?
a)
A battery and a paper clip
b)
A battery and a wire
c)
A paper clip and a wire
d)
A switch and a wire
79.
To have a complete electric circuit, the path must be _____
a)
small
b)
closed
c)
big
d)
open
80.
In most electrical circuits, the pathway is made of:
a)
Metal
b)
Plastic
c)
Static
d)
Wood
81.
What is a common energy source for a circuit?
a)
A battery
b)
A bulb
c)
A wire
d)
An appliance
82.
Who is this?
a)
Grouch
b)
Grinch
c)
Gus
d)
Gary
83.
What's my name?
a)
Tweety Bird
b)
Whirlly Bird
c)
Angry Bird
d)
Mocking Bird
84.
Who Am I?
a)
Rez
b)
Taz
c)
Moz
d)
Wez
85.
Name this guy.
a)
Waggy
b)
Shaggy
c)
Yaggy
d)
Baggy
86.

What causes magnetism?

a)

The motion of electric charges

b)

The alignment of the sun and the moon

c)

Gravitational forces between planets

d)

Chemical reactions between different substances

87.

What do electrons do to generate magnetism?

a)

They move in a straight line

b)

They spin around the nucleus of an atom

c)

They remain stationary

d)

They glow

88.

Why are materials like cloth or paper said to be weakly magnetic?

a)
Non-magnetic substances and lack of aligned magnetic domains
b)
Aligned magnetic domains
c)
High iron content
d)
Presence of strong magnetic fields
89.

Which substances are strongly magnetic?

a)
Lead
b)
Silver
c)
Gold
d)
Iron, Nickel, Cobalt
90.

What must happen for a substance to become magnetized?

a)
Random alignment of domains
b)
Domains align in the same direction
c)
Increase in pressure
d)
Temperature decrease
91.

What are the two poles of a magnet called?

a)
Positive pole and Negative pole
b)
Top pole and Bottom pole
c)
East pole and West pole
d)
North pole and South pole
92.

What happens when opposite poles of magnets are near each other?

a)
They create a magnetic field.
b)
They cancel each other out.
c)
They repel each other.
d)
They attract each other.
93.

How can some substances be magnetized by an electric current?

a)
Electric current creates heat that attracts magnetic materials.
b)
Electric current generates sound waves that magnetize substances.
c)
Electric current flowing through a material creates a magnetic field that aligns magnetic domains within the material.
d)
Electric current causes a chemical reaction that induces magnetism.
94.

What is the magnetic field?

a)
The magnetic field is a vector field that describes the magnetic influence of electric charges in motion.
b)
The magnetic field is a scalar quantity.
c)
The magnetic field is only present in the absence of electric charges.
d)
The magnetic field is perpendicular to the direction of electric charges.
95.

What role do electrons play in magnetism?

a)
Electrons create magnetic fields when they move.
b)
Electrons repel magnetic fields
c)
Electrons have no effect on magnetism
d)
Electrons attract magnetic fields
96.

What makes the atoms in iron, cobalt, and nickel strongly magnetic?

a)
Lack of oxygen in the environment
b)
Presence of protons in the nucleus
c)
Unpaired electrons in the outermost shell
d)
High temperature
97.

What is the result when you rub a piece of iron along a magnet?

a)
The iron becomes magnetized.
b)
The iron becomes demagnetized
c)
The iron becomes electrified
d)
The iron repels the magnet
98.

Why do the same poles of magnets repel each other?

a)
Opposite magnetic fields attract each other.
b)
Magnets are naturally repelled by each other.
c)
Similar magnetic fields interact to create a repulsive force.
d)
The same poles of magnets have a strong gravitational force.
99.

How does temperature affect the strength of a magnet?

a)
Temperature weakens a magnet by increasing the alignment of magnetic domains.
b)
Temperature affects the strength of a magnet by disrupting the alignment of magnetic domains.
c)
Temperature increases the strength of a magnet by aligning magnetic domains perfectly.
d)
Temperature has no effect on the strength of a magnet.
100.

What is the principle behind electromagnetic induction?

a)
The speed of light is the principle behind electromagnetic induction.
b)
Voltage induces a changing magnetic field in a conductor.
c)
Electromagnetic induction only occurs in insulators.
d)
Changing magnetic field induces voltage in a conductor.
101.

Which of the following is not a method to demagnetize a magnet?

a)
Freezing
b)
Hitting with a hammer
c)
Exposing to sunlight
d)
Heating
102.

Which of the following is NOT a type of electromagnetic wave?

a)
Microwaves
b)
Radio waves
c)
Ultraviolet waves
d)
Infrared waves
103.

Who established that electricity and magnetism are aspects of one common phenomenon?

a)
James Clerk Maxwell
b)
Isaac Newton
c)
Albert Einstein
d)
Nikola Tesla
104.

What are electric forces produced by?

a)
Magnetic fields
b)
Gravity
c)
Friction
d)
Charged particles
105.

What is responsible for most of the physical and chemical properties of atoms and molecules?

a)
Proton configuration
b)
Neutron configuration
c)
Atomic weight
d)
Electron configuration
106.

Magnetism is a force of ____________________________ that occurs between two _____________ objects.

a)

attraction or repulsion, magnetic

b)

external or internal, magnetic

c)

external or repulsion, electronic

d)

attraction or internal, electronic

107.

A magnetic field is a field of force that is produced by moving ________ charges.

a)

northern

b)

positive

c)

gravitational

d)

electric

108.

The magnetic ____________ around a bar magnet is shown above.

a)

legs

b)

flowers

c)

field

d)

direction

109.

The Earth produces its own ________ field.

a)

spectrum

b)

electric

c)

magnetic

d)

progressive

110.

A compass points toward the south pole of Earth's magnetic field, located near the Earth's geographical ________.

a)

north

b)

south

c)

east

d)

west

111.

In magnetic materials, all of the ________ are pointing in the same direction.

a)

doors

b)

electrons

c)

domains

d)

orbits

112.

A permanent magnet is a material that produces a ___________________ field without any ___________________ magnetic field being present.

a)

electronic, internal

b)

magnetic, internal

c)

magnetic, external

d)

electronic, external

113.

Permanent magnets can be demagnetized by ___________________ them past the Curie point (approximately 1,060 °F).  

a)

heating

b)

freezing

c)

shaking

d)

solidifying

114.

Every magnet has both a _________ pole and a __________ pole.

a)

North, South

b)

East, West

c)

Positive, Negative

d)

Positive, South

115.

Certain materials respond to magnetic fields by becoming ______________ themselves. ____________ is one of these materials.

a)

magnetic, Plastic

b)

electronic, Iron

c)

magnetic, Iron

d)

electronic, Plastic

116.

Some objects that normally aren't magnetic can become magnetized when connected to a circuit. Items that are magnetized in this way are called ________.

a)

electromagnets

b)

electrons

c)

electrochromic devices

d)

permanent magnets

117.

Probably the most useful thing about electromagnets is that they can be turned ________ and ________.

a)

on, off

b)

positive, negative

c)

north, south

d)

on, negative

118.

If two magnets are close together, the magnetic force will be ________.

a)

smelly

b)

weak

c)

strong

d)

positive

119.

If two magnets are placed so that a north pole and a south pole are facing each other, they will _____________ each other.

a)

date

b)

spin

c)

repel

d)

attract

120.

If two magnets are placed so that two ____________ poles or two ____________ poles are facing each other, they will repel each other.

a)

North, South

b)

external, internal

c)

positive, negative

d)

North, West

121.

Although magnetic fields are _____________, one common way that people investigate them is to use ________ filings.

a)

invisible, iron

b)

touchable, iron

c)

invisible, plastic

d)

touchable, plastic

122.

By sprinkling iron filings in a magnetic field on a flat surface, it is possible to see the __________ of a magnetic field.

a)

shape

b)

distance

c)

mass

d)

temperature

123.

The image above shows how iron filings respond to magnetic fields generated by two magnets with ____________ poles facing each other.

a)

opposite

b)

like

c)

positive

d)

negative

124.

The image above shows how iron filings respond to magnetic fields generated by two magnets with ____________ poles facing each other.

a)

like

b)

opposite

c)

positive

d)

negative

125.

A horseshoe magnet will generate a magnetic field similar in shape to that of two ________ poles brought near each other.

a)

like

b)

opposite

c)

positive

d)

negative

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