2018 Wave Notes as produced by Miss Horn
Wave notes pdf
Wave notes word
Here are a list of current wave resources. I will add more as I go through them. Thanks to other schools if you have kindly supplied material. I really appreciate it as do my students.
waves-summary-notes-gairloch1 Some of these notes are for National 4, use with the content statements so you don’t spend too long learning the National 4 work.
vflambda-vdt This starts with a practical model that you can complete in class using the Virtual Physics/ Flash Learning. It then shows how v=fλ is equivalent to v=d/t. Finally some questions will let you practise what you know.
WAVES questions word WAVES questions pdf
Here are the WAVES outcome answers. Not quite finished, but I bet I’ve done a better job than most of you
LO waves 3 ANSWERS_4
Here are some definitions to learn for the waves topic. Remember you must be able to spell:
REFLECT, DIFFRACT and REFRACT
||the distance from the middle of the wave to the top (or the bottom) measured in metres. Maximum displacement from the mean position!
||maximum disturbance of the particles in a wave. (or distance from middle to top of wave) (m)
|Angle of incidence
|| the angle between an incident ray and the normal (a line perpendicular to the reflecting surface at the point of incidence) (°)
|Angle of reflection
|| the angle between a reflected ray and the normal (°)
|Angle of refraction
||the angle between the light ray in the more optically dense material and the normal. (°)
||The critical angle is the angle of incidence above which total internal reflection occurs. (°)
||occurs when wave meet a barrier, the waves bend around an obstacle. Long waves diffract more thank short waves.
|Energy and waves
||Waves transmit energy. The greater the amplitude the more energy is transferred.
||the number of waves per second. Frequency is measured in hertz (Hz).
|| number of waves produced or passing a point per second. (Hertz or Hz)
|Law of reflection
||The angle of incidence = the angle of reflection
||In a longitudinal wave the particles move along the line of the direction of travel of energy.
||a line at 90° to the surface at the point of incidence, (from which all angles are measured.)
|| Time for one wave to pass a point or time for one wave to be produced. (s)
|Principle of reversibility of light
||The principle of reversibility of light states that a ray of light which travels along any particular path from some point A to another point B travels by the same path when going from B to A.
||when a wave “bounces off” a surface we say it is reflected. (Particles can also reflect)
||when light waves travel from one material to another the waves slow down and there is a reduction in wavelength in the optical thicker material. Unless the waves enter along the normal there is also a change of direction.
||rate of covering a distance. Number of metres travelled per second. (ms-1) The speed of the waves is represented by the formula
|Total Internal Reflection
||When a wave hits a boundary at an angle larger than the critial angle the wave is entirely reflected if the material on the other side of the boundary is less optically dense.
||In a transverse wave the particles move at 90 degrees to the direction of the flow of energy.
|| a way of transferring energy.
||the speed at which the wave travels
||the distance between the same point on successive waves.
|| the distance between two successive points on a wave. (metre or m)
||The wavelength of a wave is the horizontal distance between two adjacent troughs or crests or any two corresponding points on the wave