Waves Flashcards
what do waves do?
Transfer energy and information.
How is the energy transferred?
By oscillations in the material which the wave is travelling through.
Name the 2 types of waves and give an example
Longitudinal - Sound
Transverse - Light + electromagnetic spectrum
what does a longitudinal wave look like?
Small thin lines that bunch together then spread apart again and again.
what does a transverse wave look like?
Roundish waves that go up and down.
what happens to the oscillations in a longitudinal wave?
They are parallel to the direction of the wave.
What happens to the oscillations in a transverse wave?
They are perpendicular to the direction of energy.
What is the period of a wave?
Time taken for 1 complete wave.
What is the peak of a T wave?
The top of a wave
What is the trough of a T wave?
The bottom of a wave
What is the amplitude?
From the peak or trough to the mid-point.
What is the mid-point?
The middle of a wave represented by a line.
What is the bunched areas of L wave?
Compression
What is the spread out area of an L wave?
Rare-fraction
What is the frequency?
The number of waves per second.
