Physics Toolkit - Effingham County Schools
... If you squeeze together several turns of the coiled-spring toy and then suddenly release them, pulses of closely-spaced turns will move away in both directions. This is called a longitudinal wave. The disturbance is in the same direction as, or parallel to, the direction of the wave’s motion. Sound ...
... If you squeeze together several turns of the coiled-spring toy and then suddenly release them, pulses of closely-spaced turns will move away in both directions. This is called a longitudinal wave. The disturbance is in the same direction as, or parallel to, the direction of the wave’s motion. Sound ...
Unit 2 - Angelfire
... passenger tend to keep moving in accord with Newton's first law. Their motion carries them towards a windshield which results in a large force exerted over a short time in order to stop their momentum. If instead of hitting the windshield, the driver and passenger hit an air bag, then the time durat ...
... passenger tend to keep moving in accord with Newton's first law. Their motion carries them towards a windshield which results in a large force exerted over a short time in order to stop their momentum. If instead of hitting the windshield, the driver and passenger hit an air bag, then the time durat ...
Periodic Structures - Photonics Research Group
... diffraction gratings for optical filters, monochromators and spectrum analyzes are only a few. Especially because of the introduction of wavelength division multiplexing (WDM) in optical fiber communication, gratings are becoming indispensable for various filter functions. We will start by analyzing ...
... diffraction gratings for optical filters, monochromators and spectrum analyzes are only a few. Especially because of the introduction of wavelength division multiplexing (WDM) in optical fiber communication, gratings are becoming indispensable for various filter functions. We will start by analyzing ...
4 OSCILLATIONS AND WAVES
... quantity and, therefore, must have a direction. In this case, since the motion is linear or one dimensional, it is sufficient to specify the direction as simply being positive or negative. The choice of whether above or below the rest position is positive is arbitrary but, once decided, this must be ...
... quantity and, therefore, must have a direction. In this case, since the motion is linear or one dimensional, it is sufficient to specify the direction as simply being positive or negative. The choice of whether above or below the rest position is positive is arbitrary but, once decided, this must be ...
Chapter 11
... distance A and released from rest As the object moves toward the equilibrium position, F and a decrease, but v increases At x = 0, F and a are zero, but v is a maximum The object’s momentum causes it to overshoot the equilibrium position ...
... distance A and released from rest As the object moves toward the equilibrium position, F and a decrease, but v increases At x = 0, F and a are zero, but v is a maximum The object’s momentum causes it to overshoot the equilibrium position ...
ch13_lecture
... overshoot the equilibrium position The force and acceleration start to increase in the opposite direction and velocity decreases The motion continues indefinitely ...
... overshoot the equilibrium position The force and acceleration start to increase in the opposite direction and velocity decreases The motion continues indefinitely ...
Wavelength
In physics, the wavelength of a sinusoidal wave is the spatial period of the wave—the distance over which the wave's shape repeats, and the inverse of the spatial frequency. It is usually determined by considering the distance between consecutive corresponding points of the same phase, such as crests, troughs, or zero crossings and is a characteristic of both traveling waves and standing waves, as well as other spatial wave patterns. Wavelength is commonly designated by the Greek letter lambda (λ). The concept can also be applied to periodic waves of non-sinusoidal shape. The term wavelength is also sometimes applied to modulated waves, and to the sinusoidal envelopes of modulated waves or waves formed by interference of several sinusoids.Assuming a sinusoidal wave moving at a fixed wave speed, wavelength is inversely proportional to frequency of the wave: waves with higher frequencies have shorter wavelengths, and lower frequencies have longer wavelengths.Wavelength depends on the medium (for example, vacuum, air, or water) that a wave travels through.Examples of wave-like phenomena are sound waves, light, and water waves. A sound wave is a variation in air pressure, while in light and other electromagnetic radiation the strength of the electric and the magnetic field vary. Water waves are variations in the height of a body of water. In a crystal lattice vibration, atomic positions vary.Wavelength is a measure of the distance between repetitions of a shape feature such as peaks, valleys, or zero-crossings, not a measure of how far any given particle moves. For example, in sinusoidal waves over deep water a particle near the water's surface moves in a circle of the same diameter as the wave height, unrelated to wavelength. The range of wavelengths or frequencies for wave phenomena is called a spectrum. The name originated with the visible light spectrum but now can be applied to the entire electromagnetic spectrum as well as to a sound spectrum or vibration spectrum.