P1 waves Flashcards
A type of wave in which vibrations are at right angles to the direction of energy transfer
Transverse
A type of wave in which vibrations are parallel to the direction of energy transfer
Longitudinal
Examples of Longitudinal waves are
Sound waves and Mechanical waves
Examples of Transverse waves are
All Electromagnetic waves
Define Diffraction
The spreading out of a wave as it passes through a gap or an obstacle
Diffraction happens most when
The size of the gap is about the same size as the wavlength of the wave
Define Virtual image
An image formed by virtual rays of light or an image that can’t be projected onto a screen
Define Redshift
The wavelength of light from stars or galaxies is stretched due to them moving away
The speed that all Electromagnetic waves travel at in a vacuum
The speed of Light 300,000,000 meters per second
All Electromagnetic waves are this type of wave
Transverse waves
Microwaves are used for satellite communications because
Microwaves can pass through the ionosphere
Define Cosmic Microwave Background Radiation
The initial Gamma rays released at the start of the Big Bang. Provide evidence that the universe has expanded and strected the waves
The order of the Electromagnetic spectrum from longest to shortest wavelength
Radio, Microwave, Infra red, Visible light, Ultra Violet, X rays, Gamma
The more redshift we observe
The faster the star or galaxy is moving away from us and the further away from us it is
Define Wavelength
The distance between two identical points on a wave form. Often measured peak to peak
