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1.
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Stnd 07: Mechanical and Electromagnetic Waves
Examine the wave
diagrams shown below. Two-Part
Question
Part One: Contrast transverse waves and longitudinal waves Part Two:
Are these waves mechanical or electromagnetic
a. | Part One: Transverse-particles move perpendicular, longitudinal-particles move
parallel
Part Two: These types of wave are mechanical, not electromagnetic. | b. | Part One:
Transverse-particles are absorbed, longitudinal-particles are diffused.
Part Two: These types of
wave are electromagnetic, not mechanical. | c. | Part One: Transverse-particles are reflected,
longitudinal-particles are refracted
Part Two: These types of wave are electromagnetic, not
mechanical. | d. | Part One: Transverse-particles move parallel, longitudinal-particles move
perpendicular
Part Two: These types of wave are mechanical, not
electromagnetic. |
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2.
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Stnd 07: Mechanical and Electromagnetic Waves
You are using a
telescope to look up into the night sky, and you observe a blinking light from a satellite in orbit
around the Earth. What logical
conclusion can you make about the properties of light from this observation?
a. | Light travels at 186, 000 miles per second. It can travel through some
mediums. | b. | Light cannot travel through vacuums, but it can travel through solids, liquids, and
gases | c. | Light can travel through a vacuum. It can also travel through any
medium. | d. | Light can travel through a vacuum. It can also travel through a
gas. |
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3.
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Stnd 07: Mechanical and Electromagnetic Waves
Examine the wave
diagrams shown below Electromagnetic Wave | Mechanical Wave | | | | |
Which of the
following answers correctly explains how light waves and radio waves are different from all
mechanical waves?
a. | Radio and light waves can propagate without a medium in a vacuum. | b. | Light and radio
waves are always transverse waves, never longitudinal. | c. | Radio waves and light waves transmit energy but
mechanical waves transmit matter | d. | Light waves and radio waves slow down in a
vacuum. Mechanical waves speed up. |
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4.
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Stnd 07: Mechanical and Electromagnetic Waves
A ray of light shines
through a transparent window. Next it shines through a transparent glass cup containing water and a
straw in it. You notice that the straw in the water appears to be misshaped. The light shining
through the glass next impacts a mirror on the far side of the room. Diagram 01 | Diagram 02 | Diagram 03 | Diagram 04 | | | | | | | | |
Two-Part Question
Part One: Place the diagrams
in the correct sequence to match the provided narrative above. Part Two: Identify the type
of wave: Mechanical or Electromagnetic?
a. | Part One: Diagram 01, Diagram 02, Diagram 03
Part Two: Visible light is an
electromagnetic wave | b. | Part One: Diagram 03, Diagram 04, Diagram
02
Part Two: Visible light is an electromagnetic wave | c. | Part One: Diagram
02, Diagram 04, Diagram 03
Part Two: Visible light is a mechanical wave | d. | Part One: Third
Diagram, 1st Diagram, Second Diagram
Part Two: Visible light is a form of solar
radiation |
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5.
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Stnd 07: Mechanical and Electromagnetic Waves
Examine the diagram
below.
Identify the wave type shown above, and
describe two key characteristics of this wave.
a. | This is a radio wave. These waves are electromagnetic and do not require a
medium. | b. | This is an electromagnetic air pressure wave. These waves do not require a
medium. | c. | This is an infrared wave. They are mechanical waves and require a
medium. | d. | This is a sound wave. They are mechanical waves and require a medium to
propagate. |
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6.
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Stnd 08: Waves in Communication Systems
Fiber optic cables have
greatly improved communication systems by increasing the bandwidth for data/images to be
transmitted. Which kinds
of waves are used with fiber optic cables, and how fast can waves propagate through these
cables?
a. | They use ultraviolet waves that move at the speed of light. | b. | They use a
combination of radio waves and sound waves at the speed of sound. | c. | They use visible
light waves that move at the speed of light. | d. | Fiber optic cables use infrared waves at the
speed of light. |
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7.
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Stnd 08: Waves in Communication Systems
An air traffic controller
monitoring radar signals determines that an aircraft is flying at the wrong altitude. She
communicates with the airplane’s pilot via radio to alert them about this.
Which two
kinds of waves was the air traffic controller using, and what kind of waves are they?
a. | Radar waves and Radio. Radar is mechanical. Radio waves are
electromagnetic. | b. | Microwaves and Visible Light waves. Both of these are electromagnetic
waves. | c. | Microwaves and Radio waves. Both of these are electromagnetic
waves. | d. | Microwaves and Gamma Rays. Microwaves and gamma waves are
mechanical. |
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8.
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Stnd 08: Waves in Communication Systems
Two boys playing in their
neighborhood are communicating with each other using two-way radios (also known as walkie-talkies).
They are one mile away from each other, and they cannot see each other.
Which kinds of waves are the boys using for
this communication?
a. | They are using sound waves (electromagnetic) and radio waves
(mechanical). | b. | They are using sound waves (electromagnetic) and X-ray waves
(mechanical). | c. | They are using and radio waves (electromagnetic), and sound waves (mechanical).
| d. | They are using light waves (mechanical) and microwaves
(electromagnetic). |
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9.
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Stnd 08: Waves in Communication Systems
Remote control devices for
television and computer mice are common items that are routinely used by people all around the globe.
TV Remote Control | Computer Mouse | | | | |
Which kinds of waves do
these devises utilize, and what communication process best describe their use?
a. | Infrared waves. Human to Machine then Machine to Machine. | b. | Infrared waves.
Machine to Machine then Human to Human. | c. | Sound waves. Human to Machine then Machine to
Machine. | d. | Ultraviolet waves. Machine to Machine.then Machine to
Human |
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10.
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Stnd 08: Waves in Communication Systems
If you are injured or sick,
you may have to go to a hospital to receive special medical treatment involving waves.
Which two kinds of electromagnetic waves do doctors often use to
look inside of patients without surgery?
a. | Sound waves (ultra-sound) and radio waves can propagate through our
bodies. | b. | X-ray and gamma waves can propagate through our bodies to create visual images.
| c. | Ultraviolet and Infrared waves can propagate through our bodies to create
pictures. | d. | Light waves and sound waves can enable a doctor to look inside our
bodies. |
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