Waves 4.0 / 5 based on 2 ratings ? PhysicsWavesGCSEAQA Created by: caitlinx08Created on: 26-04-17 19:02 What is a Longitudinal Wave? A wave in which the oscillation is the same direction of the wave. 1 of 27 What is a Transverse Wave? A Transverse wave is one in which the oscillation at 90 degrees to the direction of the wave. 2 of 27 What is the Wave Speed equation? Wave speed = frequency x wavelength 3 of 27 What is the Wavelength? The wavelength of any wave is the distance between two matching points on neighbouring waves. 4 of 27 What is the amplitude? The amplitude of any wave is the maximum distance a point moves from it's rest position. The larger the amplitude, greater the energy of the wave. 5 of 27 What are the high points of a Transverse wave called? The Peaks. 6 of 27 What is the low points of a Transverse wave called? The Troughs. 7 of 27 What is the frequency? The frequency is the number of waves passing any point each point. 8 of 27 What is Wave Speed measured in? Metres per second (m/s) 9 of 27 What is frequency measured in? Hertz (Hz) 10 of 27 What is Wavelength measured in? Metres (m) 11 of 27 What is the angle of incidence equal to? The angle of reflection. 12 of 27 What is Refraction? As light passes from the air into glass it changes direction slightly, this is known as refraction. 13 of 27 What type of a Wave is sound? Longitudal. 14 of 27 What do sound waves travel fastest through? Sound travels fastest through solids. They travel more slowly through liquids and slowest through gases. 15 of 27 Why can't sound waves travel through a vacuum? Sound is a vacuum, this means there is no air. Sound waves cannot travel through a vacuum. 16 of 27 What are sound waves caused by? They are caused by something moving backwards and forwards repeatedly. These vibrations that travel through the air and called sound waves. 17 of 27 What is the speed of sound equation? Speed of sound = measured distance/time on computer 18 of 27 What is the speed equation? Speed = frequency x wavelength 19 of 27 The larger the amplitude... The louder the sound. 20 of 27 The greater the frequency... The higher pitched the sound. 21 of 27 What is the normal range of human hearing? 20 Hz (infrasound) - 20,000 Hz (ultrasound) 22 of 27 A disadvantage of an ultrasound scan... The picture of the scan isn't very clear. 23 of 27 An advantage of an ultrasound scan... It is safe to use and doesn't harm you (or the baby). 24 of 27 What are the two types of waves generated by seismic activity called? P-waves and S-waves. 25 of 27 What can the waves get through? P-waves can pass through solids and liquid rock, S-waves can only pass through solid rock. 26 of 27 What are the 3 different layers of the earth called? The mantle, outer core and inner core. 27 of 27
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