Unit 9- Properties of Waves

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•
Science
•
8th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
What is an electromagnetic wave?
Back
An electromagnetic wave is a wave that can travel through the vacuum of space and consists of oscillating electric and magnetic fields.
2.
FLASHCARD QUESTION
Front
What is the speed of light in a vacuum?
Back
The speed of light in a vacuum is approximately 299,792 kilometers per second (km/s).
3.
FLASHCARD QUESTION
Front
What is the difference between mechanical waves and electromagnetic waves?
Back
Mechanical waves require a medium (solid, liquid, or gas) to travel through, while electromagnetic waves do not require a medium and can travel through a vacuum.
4.
FLASHCARD QUESTION
Front
What is a transverse wave?
Back
A transverse wave is a type of wave where the particles of the medium move perpendicular to the direction of the wave's travel.
5.
FLASHCARD QUESTION
Front
What is a longitudinal wave?
Back
A longitudinal wave is a type of wave where the particles of the medium move parallel to the direction of the wave's travel.
6.
FLASHCARD QUESTION
Front
What is wavelength?
Back
Wavelength is the distance between two consecutive points that are in phase on a wave, such as crest to crest or trough to trough.
7.
FLASHCARD QUESTION
Front
What is frequency?
Back
Frequency is the number of waves that pass a given point in one second, measured in hertz (Hz).
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