28 terms

# Chapter 8 Waves

Ch. 8 Waves

#### Terms in this set (...)

Transverse Wave
A mechanical wave that causes particles in a matter to move up and down (or left to right) from the actual direction of the energy.
Seismic Wave
Energy waves released into the earth during an earthquake.
Wavelength
The distance between two consecutive points on two consecutive waves (crest to crest or trough to trough).
Mechanical Wave
Waves that move through matter (solid, liquid, and gas).
rarefraction (relaxation)
Area of a longitudinal wave where the particles are farther apart.
Amplitude
The distance to the top of the crest (or the bottom of the trough) to the resting point.
Longitudinal/Compressional Wave
Causes matter to move back and forth in the same direction that the wave is moving
Frequency
The number of waves that pass a given point per second.
Electromagnetic Wave
Transverse waves that can move through "space" (or areas without matter) or vacuum.
Pitch
How low or high sound is perceived (more frequency higher sound, less frequency lower sound).
Medium
The material that the matter is made up of that the wave is traveling through. (Desk = solid, water = liquid, air = gas)
Compression
Area of a longitudinal wave where the particles are closer together.
Wave
A disturbance that causes vibrations of particles to be sent through a matter (solid, liquid, or gas), or through space.
RMIVUXG
Order of electromagnetic waves from weak to powerful (Radio, Micro, Infrared, Visible Light, Ultraviolet, X-Ray, Gamma)
______________(transverse and compressional) waves travel the fastest through a solid and ______________ waves (transverse) travel the fastest through a gas.
Mechanical, Electromagnetic
Waves carry __________ from particle to particle in mechanical waves (water, sound, etc.)
Energy
Higher the frequency (more waves per second) = higher the _______.
Pitch
A _______ is a repeating disturbance that is transferring energy through matter.
Wave
_________ waves = waves that travel through
the Earth (earthquakes)
Seismic
A __________ must occur in a medium (like air or water) for a _________ to be created and heard.
vibration, sound
A __________ is a compressional wave that travels up through the water from an underwater earthquake.
Tsunami
Frequency is measured in ________.
(number of waves going by every second)
Hertz
Amplitude is measured in ________.
(how loud something is)
decibels
__________________ waves (like light) can travel through a vacuum (an area without matter - like space).
Electromagnetic
In Electromagnetic waves RMIVUXG is in order with R having the ____________ wavelength to G having the _____________ wavelength.
longest, shortest
Frequency increases the wavelength _____________.
decreases
When the particles of a medium that a wave is traveling in move back and forth in the same direction as the wave it is a __________________ or __________________ wave.
longitudinal or a compressional
Due to waves ONLY moving energy and NOT the PARTICLES of the matter they travel through when a water wave starts out at sea and finally hits a beach the actual water molecules that lands on the sand come from where?
The water closest to the shore.