Lesson 10 Flashcards
(7 cards)
1
Q
The arrangement of an electric field and a magnetic field that oscillate perpendicular to one another is known as an
A
Electromagnetic wave
2
Q
do electromagnetic waves require a medium to travel through
A
No
3
Q
Electromagnetic waves can have many different frequencies. When we include all of these frequencies of electromagnetic waves, the result is…
A
The electromagnetic spectrum
4
Q
Radio waves:
A
Used for communication, radios, tv, remote controls, cordless phones
5
Q
Microwaves:
A
Microwave ovens, cell phones, satellite and space communication, airplanes communicate with them
6
Q
Infrared:
A
Night. Vision, burglars alarms, remote controls
7
Q
Ultraviolet:
A
Sunlight, black lights (glow in the dark)
