![]() Identify amplitude and wavelength from given diagramsĭescribe a method to measure the speed of sound waves in airĭescribe a method to measure the speed of ripples on a water surface. The wave speed is the speed at which the energy is transferred (or the wave moves) through the medium.Īll waves obey the wave equation: wave speed = frequency× wavelength ( v = f λ) The frequency of a wave is the number of waves passing a point each second. The wavelength of a wave is the distance from a point on one wave to the equivalent point on the adjacent wave. The amplitude of a wave is the maximum displacement of a point on a wave away from its undisturbed position. Students should be able to describe wave motion in terms of their amplitude, wavelength, frequency and period. Students should be able to describe evidence that, for both ripples on a water surface and sound waves in air, it is the wave and not the water or air itself that travels. Students should be able to describe the difference between longitudinal and transverse waves. Sound waves travelling through air are longitudinal. Longitudinal waves show areas of compression and rarefaction. The ripples on a water surface are an example of a transverse wave. Waves may be either transverse or longitudinal. It does not store any personal data.Back to Teaching Rota Year 9 Wave Properties Objectives The cookie is set by the GDPR Cookie Consent plugin and is used to store whether or not user has consented to the use of cookies. The cookie is used to store the user consent for the cookies in the category "Performance". This cookie is set by GDPR Cookie Consent plugin. The cookie is used to store the user consent for the cookies in the category "Other. The cookies is used to store the user consent for the cookies in the category "Necessary". The cookie is set by GDPR cookie consent to record the user consent for the cookies in the category "Functional". The cookie is used to store the user consent for the cookies in the category "Analytics". These cookies ensure basic functionalities and security features of the website, anonymously. Necessary cookies are absolutely essential for the website to function properly. position is the general word for the arrangement of the body: in a reclining position. syn: position, posture, attitude, pose refer to an arrangement or disposal of the body or its parts. In the rope example, the rest position would be the position of the rope when it is stretched out and no waves are moving through it, which is a straight line from one end to the other. The rest position in a wave is the position in which the wave would sit if there was no disturbance moving through it, which is sometimes also called the equilibrium position. Synonym(s): postural position, postural resting position, rest position. The usual position of the mandible when the patient is resting comfortably in the upright position and the condyles are in a neutral unstrained position in the glenoid fossae. The distance between two consecutive crests or two consecutive troughs is the wavelength. The bottom of a wave is called the trough. Rarefaction- a region in a longitudinal (sound) wave where the particles are furthest apart.What is compression in a wave?Ĭompression- a region in a longitudinal (sound) wave where the particles are closest together. Peak-to-peak (pk-pk) is the difference between the maximum positive and the maximum negative amplitudes of the wave. Tsunamis are ocean waves triggered by: Large earthquakes that occur near or under the ocean Volcanic eruptions Submarine landslides Onshore landslides in which large volumes of debris fall into the water Scientists do not use the term “tidal wave” because these waves are not caused by tides.Īmplitude is the fluctuation or displacement of the wave from its mean value. The commands for these positions are Parade, REST Stand At, EASE AT EASE and REST. ![]() These positions are used to rest an element for short periods, while at the halt. The term amplitude can have slightly different meanings depending upon the context of the situation. That section which lies below the undisturbed position is called the trough. The section of the wave that rises above the undisturbed position is called the crest. What is the undisturbed position of a wave? ![]() 4 What is the meaning of rest position?. ![]()
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