Physical Science: Waves, Sound, and Light, Book O

Chapter 3: Electromagnetic Waves

Electromagnetic Waves

1.
Electromagnetic waves are made by __________.
A)vibrating electrical charges
B)strong compressions
C)vibrating water molecules
D)vibrating air molecules
2.
What type of waves do not require matter to carry energy?
A)mechanical
B)electromagnetic
C)transverse
D)compressional
3.
Electric current passing through a wire produces __________.
A)a compass
B)a permanent magnet
C)a magnetic field around the wire
D)geographic poles
4.
Which of the following has the shortest wavelength?
A)green light
B)X rays
C)radio waves
D)infared radiation
5.
Magnetic fields that surround all magnets exert __________.
A)the magnetic force
B)electric current
C)resistance
D)air pressure
6.
Which of the following enables your body to make vitamin D?
A)ultraviolet radiation
B)infared waves
C)gamma rays
D)visible light
7.
The entire range of electromagnetic wave frequencies is known as __________.
A)visible light
B)ultraviolet radiation
C)the electromagnetic spectrum
D)magnetism
8.
The energy carried by an electromagnetic wave is called __________ energy.
A)thermal
B)mechanical
C)radiant
D)potential
9.
__________ is a molecule composed of three oxygen atoms.
A)Ozone
B)Nitric oxide
C)An antioxidant
D)CFC
10.
What exerts the force that causes other electric charges to move?
A)conductors
B)the electric field
C)electrical poles
D)insulators
11.
Which of the following devices does NOT utilize radio waves?
A)cellular telephone
B)radar
C)satellite
D)television remote control
12.
Protons have a __________ charge and electrons have a __________ charge.
A)negative, neutral
B)positive, negative
C)positive, neutral
D)negative, positive
13.
Which of the following electromagnetic waves can break molecular bonds?
A)radio waves
B)microwaves
C)infared waves
D)gamma rays
14.
The negatively charged particles in an atom are called __________.
A)electrons
B)protons
C)neutrons
D)negatrons
15.
Global Positioning System is a system of satellites, ground monitoring stations, and receivers that __________.
A)broadcast television signals
B)provide two-way radio service for police cars, fire trucks, and ambulances
C)provide mobile telephone service
D)provide information about the receiver's exact location at or above Earth's surface
16.
As frequency increases, wavelength __________.
A)becomes faster
B)increases
C)decreases
D)remains constant
17.
Waves that use matter to transfer energy are called __________ waves.
A)mechanical
B)medium
C)electromagnetic
D)mass
18.
__________ is the number of vibrations that occur in 1 s.
A)Interference
B)Frequency
C)Amplitude
D)Wavelength
19.
Radio waves with wavelengths between 10 cm and 1mm are called __________.
A)microwaves
B)X rays
C)infared waves
D)ultraviolet waves
20.
__________ is the distance from the top of one crest of a transverse wave to the top of the next crest in that wave.
A)Wavelength
B)Amplitude
C)Frequency
D)Wave velocity
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