Features Of Waves Flashcards
What is the crest of a wave
The top of the wave
What is the trough of a wave
The bottom of the wave
What is the wavelength
The distance between two of the same points on the wave
What is wavelength measured in
Metres (m)
What is the amplitude of a wave
How high the wave is above the resting point.
What is the frequency of a wave
The number of waves in 1 second.
What are the units for frequency of a wave
Hertz (Hz)
What are the two types of wave
Longitudinal and transverse waves
What are transverse waves
The oscillations are at right angles to the direction of travel (they go up and down)
What are longitudinal waves
The oscillations are along the same direction as the direction of travel (they go back and forth)
What type of wave is light
Transverse wave
What is the angle of insidence equal to
Angle of reflection
What is geostationary
Stays in the same position all the time
What is geosynchronous
Has an orbit time of 24 hours
What is used to send satellites information
Microwaves because they can travel through the atmosphere
What are radio waves
Used between mobile phones and cell towers
What is the perpendicular line to the mirror line
The normal
What is the calculation for speed
Speed = distance divided by time
What happens to water waves
Depth goes up as the speed goes up
How do u calculate wave speed
Frequency x wavelength
What has the longest wavelength in the electromagnetic spectrum
Radio waves
Name the order of the electromagnetic spectrum
Radio waves Microwaves I.R (infrared radiation) Visible Light Ultra Violet X -ray Gammar rays
What happens to the speed of water waves are as the water gets deeper
Speed goes up but less waves
What do you call it when light bends as it travels into a glass block
Refraction
What has the highest frequency
Gamma
Which parts are ionising(can damage cells)
Ultra Violet, X ray, and Gammer ray
What is similar about all parts of the electro magnetic spectrum?
They can travel through vacuum
They have the same speed
Can transfer energy
Which is the only part of the system we can see?
Visible light spectrum
Which electromagnetic spectrum can kill microorganisms?
Ultra Violet
Which electromagnetic spectrum is used for satellite transmissions
Radio waves
Which rays do people give out?
Infrared radiation
