# Force, Motion, and Energy

 Sound the movement of waves through a medium(vibrations) Pitch the measurement of a high sound or low sound Frequency The number of vibrations per second Wavelength the distance between two compressions Visible Spectrum ROY G. BIV Refraction when light bends reflection when light bounces off of an object sonar sound navigation and ranging, humans use echoloation with the use of sonar, a sound signal is sent out and part of it will be reflected back if it strikes an object or "target" light light is a source of energy opaque if no rays pass though an object transpaqrent if rays pass easily throgh an object, clear or see through, translucent if some rays pass through an object static electricity the build up of electric charge on the surface of objects. - Benjamin Franklin learned that lightning was a form of static electricity conductor electric currents are able to flow insulator electric currents are not able to flow compression wave sound is a copression wave vibration a rapid motion back and forth, to move or cause to move back and forth or from side to side very quickly electricity anything involving electric charges but usally refers to static, direct current, and alternating current electricity. open circuit a circuit with a break in it (stops electricity from moving closed curcuit a circuit with no breaks or interuptions parallel circuit a curcuit where different parts of the circuit are on seperate paths series circuit a basic circuit consisting of three elements: a conductor, a load, and an energy source and has only one pathway electromagnet a magnet produced by an electric current, usally a type of iron wrapped in a conductor magnetism magnetism and electricty are very closely related; a current running through a wire and a magnet produce a magnetic field energy the abilityto do work friction two objects rubbing against each other to create heat(ex.rubbing hands together potential energy energy at rest. Potential energy is also stored energy. kinetic energy energy in motion simple machine machines used to make work easier compound machine a combination of two or more simple machines(Ex. wheelbarrow, scissors, bicycle) lever a simple machine with fulcrums (pivot points) are usually levers. a bar used to pry or move something. (Ex. seesaw, crowbar, shovel, nutcracker) screw a nail shaped or rod-shaped piece of metal with a winding ridge around its length used for fastening and holding pieces together.(Ex. jar lid, corkscrew) pulley a simple machine with ropes or chains used to raise something.(Ex. hoist a flag, raise window blinds. wheel and axle a simple machine consisting, in its typical form, of a cylindrical drum to which a wheel concentric with the drum is firmly fastened: ropes are so applied that as one unwinds from the wheel, another rope is wound on to the drum. inclined plane a ramp-like object that makes moving heavy things easier. wedge a sharp object, sometimes with jagged edges. AuthorJarvis1 ID141819 Card SetForce, Motion, and Energy Descriptiondefinitions Updated2012-04-19T19:57:39Z Show Answers