domingo, 22 de agosto de 2010

Image From Voc #2 and #3

Voc #3 + Voc #4

Potential Energy:the Energy Stored in an Object or Material.
Gravitational Potential Energy:The Potential Energy of an Object located above the ground.
Kinetic Energy:The Energy of a moving object.
Work:Force Applied to an Object times the distance the object moves.
Simple Machine:A Device with few parts that makes it easier to do work
Effort Force:The Force Applied to a machine.
Resistance Force:The Force that make machine actis against.
Lever:A Simple Machine made of a ridgid bar on a pivot point.
Fulcrum:A Pivot Point of a Lever
Mechanical Advantage:The Number of times a machine multiplies the force applied.
Pulley:A Grooved wheel that turns by the action of a rope in the groove.
Wheel And Axle:A Simple Machine Made of a handle or axis attached to the center of a wheel

domingo, 15 de agosto de 2010

Image From Voc#1 + #2



Voc#1 + Voc#2 Forces And Newtons First Law - More Of Newtons Law

Force:A Push or pull exerted by one object on another.
Friction:A Force that Oppoes the motion of an object in contact with a surface.
Drag-Force:A Force that oppoes the motion of an object throughta liquid or gas.
Gravity:A Force of Attraction that exists between all object with mass.
Net-Force:The Combined effect of all the forces acting on an object.
Balanced-Forces:Forces that cancel each other out when acting together on a single object.
Unbalanced-Forces:Forces that do not cancel each other out when acting together on a single object.
Inertia:The Tendecy of an object to oppoes a change in motion.
Momentum:The Mass of an object Multiplied by its velocity