Waves! AQA physics waves (: 3.5 / 5 based on 6 ratings ? PhysicsWaves and SoundGCSEAll boards Created by: MopBrownCreated on: 11-09-11 15:22 What does Amplitude mean? The height of a wave crest or the depth or a wave trough from the position of rest. 1 of 18 What does Frequency mean? the number of wave crests passing a point in one second 2 of 18 What does wavelength mean? The distance from one crest to the next crest or from one trough to the next trough 3 of 18 What is the unit of frequency Hertz (Hz) 4 of 18 What is a transvers wave? Wave in which the vibrations are perpendiculare to the direction of energy transfer 5 of 18 What is a longitudinal wave? Wave in which the vibrations are parallel to the direction of energy transfter 6 of 18 When a longitudinal wave passes though air, what happens to the air particles at compression? The air particles get pushed closer together 7 of 18 Sound waves are... longitudinal waves 8 of 18 Light waves are... transverse waves 9 of 18 What is refraction? When a wave changes direction when it passes arcoss a boundary between two transparent substances 10 of 18 What is diffraction? The spreading of waves when they pass through a gap or around the edge of an obstacle that has a simmilar size as the wavelength of the waves 11 of 18 What happens to the light ray when it enters a more dense substance? The light ray slows down and the ray changes direction towards the normal 12 of 18 What is the angle of incidence? the angle between the incidence ray and the normal 13 of 18 What is the angle of reflection the angle between the reflected ray and the normal 14 of 18 What is ment by an eletromagnetic wave? Eletric and magnetic disturbance that transfers evergy from one place to another 15 of 18 Ultraviolet light can be used For fluorescent lights 16 of 18 What are radio waves? Low frequency eletromagnetic radiation used to transmit info such as television and radio programs 17 of 18 what is the speed of a sound wave of frequency 330Hz and wavelenght 1cm? 3.3m/s 18 of 18
Comments
Report