Waves Flashcards
(26 cards)
What are the forms of energy
Heat
Light
Electrical
Sound
What is a wave
A repeating disturbance or movement that transfers energy through matter or space
What is a medium
A form of matter through which the wave travels
What is the difference between mechanical and electromagnetic
Mechanical requires a medium
Electromagnetic don’t require a medium
What is a transverse wave
The matter in the wave moves up and down at a right angle to the direction of the wave
What is a longitudinal wave
The matter in the wave moves back and forth parallel to the direction of the wave
What is wave length
A measure of distance so the units for wave length are always distance units such as mm, cm and m
What is wave frequency
The number of waves that pass through point in one second. Unit of frequency is one sec
What is the amplitude of a wave
Directly related to the energy of a wave
How do u find the amplitude of a longitudinal wave
Determined by closeness of waves
How do you work out the amplitude of a transverse wave
How far up/down from nodal line
What is energy
The ability to work
How do you measure the frequency of a wave
Count the number of waves in the diagram
How do you measure wave length
Find the distance between the middle of two waves side by side
How do you measure the speed of travel
Wavelength x frequency
What is energy
The ability to do work
What are three types of electromagnetic wave
Light
X-rays
Other forms of radiation
What are two transverse waves
Ocean wave
Light wave
What is the crest of a wave
The top of the wave
What is the trough
The bottom of the wave
How do you measure the frequency of a wave
Count the number of waves in the diagram
How do you measure wave length
Find the distance between the middle of two waves side by side
How do you measure the speed of travel
Wavelength x frequency
How do you measure the frequency of a wave
Count the number of waves in the diagram
