SlideServe
Télécharger Obtenir Pro
Menu
Accueil Pro
Préférences
ApparenceLight Aide et commentaires
© SlideServe · v2026

Understanding Waves: Types, Properties, and Calculations

annis avatar
annis
12 diapositives · 277 Views · Jul 16, 2014

Waves are disturbances that transfer energy through a medium or vacuum, manifesting as elastic deformations, pressure variations, or electromagnetic radiation. They are categorized into mechanical and non-mechanical waves based on their requirement for a medium. Mechanical waves include sound and water waves, characterized by longitudinal and transverse movements. Key properties comprise amplitude, wavelength, frequency, and speed. This guide explores wave types, their behavior, and simple calculations to further understanding of wave mechanics.

Understanding Waves: Types, Properties, and Calculations - slide 1
01 / 12Understanding Waves: Types, Properties, and Calculations
1 / 17

Télécharger la présentation

Understanding Waves: Types, Properties, and Calculations
Une image / un lien ci-dessous est fourni (tel quel) pour télécharger la présentation

Politique de téléchargement : le contenu du site vous est fourni TEL QUEL pour votre information et votre usage personnel ; il ne peut être vendu, concédé sous licence ni partagé sur d’autres sites sans l’accord de son auteur.Le contenu vous est fourni TEL QUEL, pour votre information et votre usage personnel uniquement. Téléchargez la présentation en cliquant sur ce lien. Lors du téléchargement, si vous ne parvenez pas à télécharger une présentation, l’éditeur a peut-être supprimé le fichier de son serveur.Pendant le téléchargement, si vous ne parvenez pas à obtenir une présentation, le fichier a peut-être été supprimé par l’éditeur.

F I N

Plus de contenu associé

Transcription de la présentation

  1. “ a disturbance or variation that transfers energy progressively from point to point in a medium and that may take the form of an elastic deformation or of a variation of pressure, electric or magnetic intensity, electric potential, or temperature “ What is a Wave? Wave = a disturbance or variation which travels through a medium Vibrations and Waves by RifkiIrawan

  2. a wave : the transfer of energy from one point to another. WAVE non - mechanical mechanical do not require a medium for the transfer of energy to occur require a medium for the transfer of energy to occur Electromagnetic waves (EM) Water waves Sound waves

  3. Types of Waves Waves are divided into types according to the direction of the displacements in relation to the direction of the motion of the wave itself. Longitudinal Waves the displacement of the medium is parallel to the propagation of the wave Velocity of propagation displacement

  4. Transverse Waves the displacement of the medium is perpendicular to the direction of propagation of the wave displacement Velocity of propagation

  5. Longitudinal Waves compressions λ rarefactions one wavelength

  6. Transverse Waves one wavelength crest λ amplitude trough

  7. Transverse Waves Longitudinal Waves Water Waves

  8. Terms used to describe wave motion • The high points are called crests while the low points are called troughs. • The amplitude is the maximum displacement from the rest position. • The wavelength(λ) is the distance between two successive crests or two successive troughs. • The frequency ( f ) is the number of crests (or troughs) that pass a point per second. The unit of frequency is Hertz ( Hz ). • The period ( T ) is the time taken to generate one complete wave. • The speed ( v ) of the wave is the distance moved by a wave in one second. T = 1 / f v = λ/ T v = f x λ or

  9. End of presentation

  10. Exercise : • A vibration of frequency 5 Hz sends a wave of wavelength 0.8 m down a rope. What is the speed of the wave? • A wave of wavelength 1.5 m travels down a rope at a speed of6 m s-1. What is the frequency of the wave? • The water waves below are traveling along the surface of the ocean at a speed of 2.5 m/s and splashing periodically against Wilbert's perch. Each adjacent crest is 5 meters apart. The crests splash Wilbert's feet upon reaching his perch. How much time passes between each successive drenching? Answer and explain using complete sentences.

  11. 9 cm P Q 1. What is the velocity of a wave of frequency 600 Hz and wavelength 0.5 m ? 2. What is the frequency of a wave of wavelength 0.9 m and velocity 300 ms-1? a. What is the wavelength of the waves shown in the figure above ? b. The wave which is now at P reaches Q in 3 seconds. What is the speed of the wave ? 3. What is the wavelength of a wave of velocity 300 ms-1and frequency 1000 Hz ? c. What is the frequency of the wave ?

  12. 1. A source of frequency 500 Hz emits waves of wavelength 0 .2 m. How long does it take the waves to travel 400 m ? 2. A wave of frequency 500 Hz travels between two points P and Q with a velocity of 300 ms-1? How many wavelengths are there in PQ if the length of PQ is 600 m! 3. A source of frequency 3 Hz generates waves with an amplitude of 0.5 cm and a wavelength of 12 cm. What is the velocity with which the waves travel across the surface ?