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Waves: Mechanical and Electromagnetic. What is a wave? Different kinds of waves. What can waves do? Describing waves and their properties. Interference Pictorial and mathematical description. Sound and musical scales. From the source and through the medium Standing waves Resonance Scales The Doppler effect.
A mechanical wave is a disturbance that travels through some material or substance called the medium for the wave. There are basically two kinds of waves{transverse and longitudinal waves. Waves propagate through the medium at a de nite speed called the wave speed. As the wave propagates through the medium, the particles sustaining the wave
13.4 Plane Electromagnetic Waves. To examine the properties of the electromagnetic waves, let’s consider for simplicity an electromagnetic wave propagating in the +x-direction, with the electric field E pointing in the +y-direction and the magnetic field B in the +z-direction, as shown in Figure 13.4.1 below.
Mechanical Waves 15-1. Introduction. Wave pulse. Source: disturbance + cohesive force between adjacent pieces. A wave is a disturbance that propagates through space Mechanical wave: needs a medium to propagate. Distinctions. Wave velocity vs. particle velocity. Wave can travel & Medium has only limited motion.
Chapter 12. Mechanical Waves and Sound. To describe mechanical waves. To study superposition, standing waves, and interference. To understand sound as a longitudinal wave. To study sound intensity and beats. To understand the Doppler effect and frequency shifts. To examine applications of acoustics and musical tones.
All electromagnetic (EM) waves are transverse and travel at 3 x 108 ms-1 in a vacuum. Transverse waves can be demonstrated by shaking a slinky vertically or through the waves seen on a string, when it's attached to a signal generator. Longitudinal waves - oscillation of particles is parallel to the direction of energy transfer .
Electromagnetic waves are transverse, sound waves are longitudinal and mechanical waves may be either transverse or longitudinal. All types of electromagnetic waves travel at the same speed through a vacuum (space).
