energy, all waves transfer what?, Transverse waves, what wave moves perpendicular to the direction in which the particles are vibrating (i.e. a water wave moves forward but the particles move up and down)., Longitudinal waves, what wave moves parallel to the direction in which the particles are vibrating (i.e. a sound wave moves forwards and the particles vibrate forwards and backwards)., a longitudinal wave., A sound wave is an example of, of transverse waves., Electromagnetic radiation and water waves are examples of, Wavelength, λ, what is Distance from a point on a wave to an identical point on the next wave. Measured in metres (m), Amplitude, what is Size of maximum disturbance from the centre line, Period, T, what is Time taken for one full wave to pass a point. Measured in seconds (s), Wave speed, v, what is Distance travelled by a wavelength in one second. Measure in metres per second (ms-1), Frequency, f, what is Number of waves passing a fixed point every second. Measured in hertz (Hz), Diffraction, What happens when a wave passes through a gap or passes by an object., More, Long wavelengths diffract, Less, Short wavelengths diffract, Gamma Rays, X-Rays, Ultraviolet, Visible, Infrared, Microwaves, Radio waves, Know the relative frequency and wavelength of bands of the electromagnetic spectrum, the speed of light: 3 × 108 ms-1, All waves in the electromagnetic spectrum are transverse waves and travel at, Refraction, what occurs when light passes from one medium to another, due to a change in the properties of that medium., Speed decrease, Wavelength decreases, Angle of refraction is less than angle of incidence when angle of incidence is greater than 0 degrees, For a wave entering a more dense medium:, Speed increases, Wavelength increases, Angle of refraction is greater than angle of incidence when angle of incidence is greater than 0 degrees, For a wave entering a less dense medium:

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