The following two videos cover the wide range of wave behaviour, including reflection, refraction, diffraction and wave superposition. Wave superposition occurs when two or more waves are travelling through the same medium at the same time, the net displacement at any point in time, is simply the sum of the individual wave displacements. Diffraction is the bending of waves around obstacles and openings. Reflection is the change in direction of a wavefront at an interface between two different media so that the wavefront returns into the medium from which it originated, while refraction is the change in direction of a wave passing from one medium to another. In this post, we explain the behaviour of waves in a variety of situations by investigating the phenomena of reflection, refraction, diffraction and wave superposition, as a part of the Prelim Physics course under the module Waves and Thermodynamics and sub-part Wave Behaviour.
What is reflection, refraction, diffraction and wave superposition? Latent Heat Involved in a Change of State.They will be able to build patterns to show what occurs and draw them. They will compare wavelengths and frequency. Reflection, refraction and diffraction are all boundary behaviors of waves associated with the bending of the path of a wave. Relationship between the Change in Temperature of an Object and its Specific Heat Capacity (Q = mc△T) This investigation gets students to investigate what happens to waves when they hit barriers move around barriers and pass through gaps.Relationship Between the Temperature of an Object and Kinetic Energy.Applying Equations and Relationships to Solve Questions (Refraction Index, Snell's Law, Critical Angle, Intensity of Light).Relationship Between the Inverse Square Law, the Intensity of Light and the Transfer of Energy.Practical Investigation: Phenomenon of the Dispersion of Light.Refraction and Total Internal Reflection.Practical Investigation: Formation of Images in Mirrors and Lenses see into a room that is around a corner because of the extensive diffraction of light waves.Behaviour of Standing Waves on Strings and Pipes.Reflection, Diffraction, Resonance and Superposition of Sound Waves.Relationship Between Distance and Intensity of Sound.Displacement of Air Molecules as Variations in Pressure.Practical Investigation: Pitch and Loudness of a Sound.Resonance in Mechanical Systems (Driving Frequency, Natural Frequency, Amplitude, Transfer of Energy).Reflection, Refraction, Diffraction and Wave Superposition.Graphs of Displacement as a Function of Time (Transverse and Longitudinal Waves).Practical Investigation: Transverse, Longitudinal, Mechanical and Electromagnetic Waves.Practical Investigation: Creation of Mechanical Waves.
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