Lesson 1 vocab
Define wave
A disturbance that carries energy and travels in a repeating pattern
Define appear
show up
Define absorb
To take in
Define signal
A message
What is the crest?
The top point of a transverse wave
Define amplitude
The greatest height of a wave from its resting position
Define circular waves
Waves that are caused by a disturbance at a singular point
Define system
a group of parts that work together as a whole
Define range
all of the possibilities between two endpoints
What is the trough?
The bottom point of the transverse wave?
Define wavelength
the distance between similar points on a wave
Define Wave period
The amount of time it takes for a wave to complete one back and forth motion
Define reflect
to bounce off a surface
Define transmitter
The part of a device that sends out radio signals
Define Transfer
"to relocate"
Define Frequency
The number of wave repetitions in a certain amount of time
Define Plane wave
A wave that is made when a line of matter is disturbed
Define ray
a line of energy that continues in one direction until it hits an object
Define antenna
The part of a device that takes in the radio waves
Define longitudinal waves
a wave that moves in the same direction as the particles
Define Transverse
A wave that moves perpendicular to the direction of the particles
Define superposition
When more than one wave moves through a medium and meets-the waves add together
Define refract
When light rays bend and enter a new medium
Define receiver
What converts the radio waves into a usable message (turn signals into music, images, or date to make web pages)
What is the difference between digital and analog signals?
digital signals- use clear cut values such as numbers, which are sometimes called digits
analog signals-send information in a continuous stream