Waves 1
Waves carry __________
What is energy?
I have the longest wavelength on the spectrum
What is radio waves?
sound waves cannot carry energy through this
What is a vacuum?
The distance from crest to crest or trough to trough
What is wavelength?
What type of wave is a sound wave?
longitudinal or mechanical
This type of wave needs a medium
Mechanical Waves
What is the only electromagnetic radiation (light wave) you can see?
What is visible light?
What is a medium? Give an example
material that mechanical wave needs to travel through.
solid, liquid, Gas
What is the height of a wave known as?
amplitude
If you were in outerspace, would anybody be able to hear you scream?
No. Require medium to travel through
This type of wave does not need matter to transfer energy.
What is an electromagnetic wave?
What is the energy decreases?
The matter that mechanical waves travel through is known as ____________.
What is a medium?
What happens when the wavelength gets longer?
Frequency becomes lower; energy becomes lower
Sound waves travel the fastest in what medium? The slowest in what medium?
fastest- solids
slowest- gases
High frequency waves have _______ wavelengths.
What are SHORT wavelengths?
What is a practical application of a radio wave
radio, TV, military communications, phone.
Sound waves will travel faster in this kind of matter.
What is a solid?
How can you tell if a wave has a high amount of energy?
High frequency or high amplitude
This transmits energy through matter or empty space
A wave
This is the bending of a wave as it passes between two substances
Refraction
In what medium do light waves travel the slowest? the fastest?
slowest = solid
fastest = gas
**light SLOWS down in more dense materials **
What type of wave can travel through a vacuum?
EM Wave
(Radio, Light, UV, Infrared, Microwave)
The number of wavelengths that pass a given point per second.
What is frequency?
Explain why you will never hear an explosion in space
what is because space is a vacuum and there are no particles for the sound to travel through