Force, Motion, and Energy

the movement of waves through a medium(vibrations)

the measurement of a high sound or low sound

The number of vibrations per second

the distance between two compressions

ROY G. BIV

when light bends

when light bounces off of an object

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 is a source of energy

if no rays pass though an object

if rays pass easily throgh an object, clear or see through,

if some rays pass through an object

the build up of electric charge on the surface of objects. - Benjamin Franklin learned that lightning was a form of static electricity

electric currents are able to flow

electric currents are not able to flow

sound is a copression wave

a rapid motion back and forth, to move or cause to move back and forth or from side to side very quickly

anything involving electric charges but usally refers to static, direct current, and alternating current electricity.

a circuit with a break in it (stops electricity from moving

a circuit with no breaks or interuptions

a curcuit where different parts of the circuit are on seperate paths

a basic circuit consisting of three elements: a conductor, a load, and an energy source and has only one pathway

a magnet produced by an electric current, usally a type of iron wrapped in a conductor

magnetism and electricty are very closely related; a current running through a wire and a magnet produce a magnetic field

the abilityto do work

two objects rubbing against each other to create heat(ex.rubbing hands together

energy at rest. Potential energy is also stored energy.

energy in motion

machines used to make work easier

a combination of two or more simple machines(Ex. wheelbarrow, scissors, bicycle)

a simple machine with fulcrums (pivot points) are usually levers. a bar used to pry or move something. (Ex. seesaw, crowbar, shovel, nutcracker)

• 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)

a simple machine with ropes or chains used to raise something.(Ex. hoist a flag, raise window blinds.

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.

a ramp-like object that makes moving heavy things easier.

a sharp object, sometimes with jagged edges.