Sound Chapter 3: EM Waves Question Preview (ID: 33569)


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Which rays have the highest frequencies?
a) Gamma Rays
b) X-Rays
c) UV Rays
d) Visible Light

The particle model is best explained by what?
a) Photoelectric Effect
b) Polarized Light
c) Polarized Filters
d) Photons

When FM signals travel what changes?
a) The frequency of the wave
b) The amplitude of the wave
c) The wavelength of the wave
d) The loudness of the wave

The frequency remains the same on what radio waves?
a) AM waves
b) FM waves
c) new radios
d) old radios

Which electromagnetic (EM) waves have the longest wavelengths and lowest frequencies?
a) Radio Waves
b) Infrared Waves
c) Ultraviolet Rays
d) Gamma Rays

In electromagnetic (EM) waves, the magnetic fields are what to the electric fields?
a) Perpendicular (right angle)
b) 180 dgrees
c) next to
d) to the left of

A thermogram uses what types of waves to identify warm and cool parts of objects?
a) Infrared Rays
b) Visible Light
c) Microwaves
d) Radio Waves

What is the part of the spectrum you can see?
a) Visible Light
b) Microwaves
c) Infrared Rays
d) Radio Waves

What effect is shown when electric current flows when light shines on certain substances?
a) Photoelectric Effect
b) Polarized Effect
c) Polarized Light
d) Photoelectric Light

What kind of light consists of waves that vibrate in only one direction?
a) Polarized Light
b) Unpolarized light
c) Light Waves
d) EM Waves

How are electromagnetic (EM) waves classified?
a) Longitudinal waves
b) Transverse waves
c) Short waves
d) Long waves

What makes long-distance telephone calls possible anywhere in the world?
a) Satellite telephone systems
b) Gravity
c) The curve of Earth
d) Waves

Radio waves carry information from a broadcasting station to your radio and what?
a) TV
b) Phone
c) GPS
d) iPad

What stops radio waves from going one satellite to the other?
a) The curve of Earth
b) The sun
c) Planets
d) Gravity

What uses microwaves, then the signal goes to a tower, then a hub, then to a switching station, then to a tower close to you?
a) Cell Phone Communication
b) Microwaves
c) Waves
d) GPS

How can light act as a wave?
a) Light is an electromagnetic wave; just like when light passes through a polarizing filter
b) Light is an light wave; just like when light passes through a polarizing filter
c) Light is an electromagnetic wave; just like when light passes through a unpolarizing filter
d) Light is an visible light wave; just like when light passes through a polarizing filter

How can light act as a particle?
a) It can act like stream of particles called photons; just like in the photoelectric effect
b) It can act like stream of particles called light; just like in the photoelectric effect
c) It can act like stream of particles called photons; just like in the particle effect
d) It can act like stream of particles called photons; just like in the light effect

What is electromagnetic spectrum?
a) The range of electromagnetic waves placed in order
b) The range of colors placed in order
c) The range of best waves placed in order
d) The range of oldest waves placed in order

In a vacuum, all EM waves have the same what?
a) wavelength
b) speed
c) frequency
d) amplitude

Which waves have some electrical and magnetic properties?
a) Electromagnetic waves
b) Longitudinal Waves
c) Transverse Waves
d) Mechanical Waves

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