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42 Cards in this Set
- Front
- Back
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air pressure system
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provide and regulates air pressure to cause vocal cords to vibrate
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Vibratory System
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when the vocal folds vibrate they change rhe air pressure to sound waves producing a voiced sound or what is termed as a buzzy sound
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Vocal folds
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soft tissues which are the main components of the voice box
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resonating system
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the vocal tract chanhes the buzzt sound into a persons recognizable voice
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Loudness
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a sound that varies from one person to another
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Intensity
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the amount of energy usrd per unit area
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Pitch
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refera to the hoghness and lowness of a pitch
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Quality
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distinguish two sounds of the same pitch and loudness but different source of sound
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sound
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a longitudinal wave produced by vibrating objects
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light
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is an electromagnetic wave that is very important because it enables you to see things around you
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Isaac newton
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discovered light
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Cristian Huygens and robert hooke
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showed that light can be ecplained by the wave theory
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James clerk maxwell
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identified that light is an electromagnetic wave
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Electromagnetic wave
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consists of both electric anf magnetic feilds maving togwther moving together periodicaly in space
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Light
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travels in a straight line
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shadow
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a region which light rays do not reach a surface because light is blocked by an object
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umbra
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darker part of a shadow
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pebumbra
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lighter/ outer part of the shadow
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Color
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differing qualities of loght being emitted or reflected by the objects
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Black
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abswnce of light
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selective reflection
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certain frequencies of light depending on the object
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Transmission
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the color of the transparent material is dependent on the color pigment of the material and on the light illuminating it
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white light
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when colored lights are mixed at different frwquencies
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Heat
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transfer of energy
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Temperature
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indicates the hotness or coldbess of a substance
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Thermometer
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device that measures temperature
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Conduction
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a method of charging wherein there is a direct contact between two objects
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Electrostatic
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force that a charged particle exerts on another charged particle
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Neutron
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neutrally charged particle
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Induction
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no direct contact between two objects
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atomic number
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njmber of protons in a neutral atom
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Electron
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negatively charged particle
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proton
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positively charged paticle
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Coulomb
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SI unit for charge
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Charge
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fundamental quantity of all electric phenomena
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ION
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charged particle with an unequal number of protons and electrons
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negative ions
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has an excess electron
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positive ions
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has an excess of protons
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insulator
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does not allow heat to transfer
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conducter
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allows heat to transfer
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convection
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transfer of energy through the motions of fluids
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lighting rod
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used to catch and direct lightning to the ground during thunderstorm
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