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WorksheetsElectromagnetism
Total questions: 11
Worksheet time: 6mins
Name
Class
Date
1.
How do like poles interact with each other?
a)
They repel each other.
b)
They attract each other.
c)
Throw a toaster into a bathtub.
d)
No relationship.
2.
Which can sound NOT travel through?
a)
A Gas
b)
A Plasma
c)
A Vacuum
d)
A Liquid
3.
Which is NOT a unit of measurement for Electromagnetism?
a)
Hertz for Frequency
b)
Meters for Wave-length
c)
Newtons for Force
d)
Volts for Energy
4.
What was sonar originally an acronym for?
a)
Silly Ostrich Not a Rooster
b)
SOund Navigation And Ranging
c)
Super Over Noise And Resonance
d)
Sending Out Navigation Albeit Radio
5.
What carries cell phone signals?
a)
Microwaves
b)
Sound Waves
c)
Gamma Rays
d)
Radio Waves
6.
What are electrons called when they are unconnected to an atom?
a)
Free Electrons
b)
Valence Electrons
c)
Vacuum Electrons
d)
Conduction Bands
7.
What technology is the basis of cell phone technology?
a)
basic two-way radios
b)
satellite signaling
c)
motion ranging
d)
sound distribution
8.
How does radar differ from sonar?
a)
Radar uses radio waves.
Sonar uses sound waves.
Sonar uses sound waves.
b)
Sonar only uses audible sound.
c)
Radar can be used in water.
d)
Sonar covers a larger distance.
9.
What is the name of the generator that produces electromagnetic waves in a microwave oven?
a)
Autobot
b)
Decepticon
c)
Magnetron
d)
Genitor
10.
Some sonar sets release sound signals too high-pitched for humans to hear. These sound frequencies are called...
a)
Supersonic
b)
Ultrasound
c)
Loud
d)
Power Sound
11.
Which sonar set emits pulses (pings), then receives the returning sound echo?
a)
Passive Sonar Set
b)
Active Sonar Set
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