PPT-Calculating Period, Frequency, Wavelength and Velocity of Waves

Measuring Waves Variables Recap Frequency f of waves passing a point in 1 second SI unit Hertz Hz shorter wavelength higher frequency higher energy 1 second Range for human hearing . will be held during the final examination period and in the regularly scheduled classroom unless special room arrangements are made with the Registrar Thursday Evening Classes Thursday December 11 Tuesday Evening Classes Friday December 12 Wednesday The Electromagnetic Spectrum. What is Light?. A difficult question, thousands of years in understanding.. Very difficult to study,. since it cannot be. caught, and it is very. difficult to measure.. What is Light?. What is a wave?. A wave is a repeating disturbance or movement that transfers energy through matter or space. Waves transfer energy not matter. The water waves below are carrying energy but are not moving. Waves can only exist as they have energy to carry.. Group velocity: the speed of information. Group-velocity dispersion. Superposition again. Standing waves: the . sum of two oppositely. traveling waves. Beats: the sum of two different frequencies. 1. Periodic Motion – any repeated motion with regular time intervals. Simple Harmonic Motion – vibration about an equilibrium position in which a restoring force is proportional to the displacement from equilibrium . Which of the following waves . requires a material medium through which to travel? . (a) Sound . (b) Television . (c) Radio. (d) X ray. Q1. (a) Sound . Sound is a mechanical wave, transferred through air, or other media, by vibrations passed along through the media. by meaning that it requires a medium through which to travel. . Waves. Wave. A . repeating movement or disturbance that transfers energy through matter or space.. All waves carry energy without transporting matter from place to place.. Molecules pass energy along to neighbor molecules who then pass energy to neighbor. 1. . A certain violet light has a wavelength of 413 nm. What is the frequency of this light?. 2. . What is the wavelength of radiation whose frequency is 1.50 x 10. 13. Hz?. 3. . How much energy is associated with a photon in the microwave region of the spectrum with a frequency of 6.6 x 10. REMINDER!. DON’T FORGET. TO . STUDY!. . Electromagnetic waves. Mechanical waves. Interference. Reflection. Refraction. Pitch. diagrams. 1. Define . the following words:. Crest . – . the highest part of a transverse wave.. 4 Basic Properties of Waves . Amplitude. Wavelength. Frequency. Speed. Amplitude . Maximum distance the particles of the medium carrying the wave move away from the resting place. Amplitude of Transverse Wave. Waves. Water and Seismic Waves. Transverse Waves. Longitudinal Waves. Frequency, Period and Amplitude. Crests, Troughs and Wavelength. Universal Wave Equation. Waves. Waves are disturbances which transfer energy over a distance. A. . B. . C. DO NOW TUESDAY. Give your own definition of a wave.. Learning Targets. 1.1a Define mechanical wave. . 1.2a Define electromagnetic wave. .. 1.3a Identify an electromagnetic . Essential Knowledge.  . 3.B.3:. . Restoring forces can result in oscillatory motion. When linear restoring force is entered on an object displacement from an equilibrium position, the object will undergo a special type of motion called simple harmonic motion (SMH). . Chapter 1 section 2. Electromagnetic Spectrum. In . 1852. , James Clerk Maxwell proved that . visible. light was part. of a larger spectrum.. Each. color of . visible. light is a different . wavelength of electromagnetic radiation..