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motion & force


1.Motion A object's change in position relative to a reference point.
2.Reference point The earths surface is common reference point for determining motion.
3.speed The distance traveled divided by the time interval during which the motion occurred
4.velocities The speed of an object in a particular direction
5. Acceleration The rate at which velocity changes over time; an object accelerates it its speed,direction, or both change.
6.Force A push or pull exerted on an object in order to change the motion of the object; force has size and direction.
7.Newton The SI unit for force (symbol, N)
8.Net force The combination of all of the forces acting on a object
9.Balanced forces When the forces on a object produce net of O N the forces are balanced
10.Unbalances forces When the net on and object is not O N the forces on the object are unbalanced
11.How do you know when something has moved ? An object is in motion if its distance relative to another object is changing. To tell if an object is moving, you use a reference point.
12.Energy energy is the ability to do work.
13. Potential energy potential energy is any form of energy that has stored potential that can be put to future substances
14. Kinetic Energy kinetic energy is the energy in moving objects or mass Examples:mechanical energy
15.Energy Transformation Energy transformation, also known as energy conversion, is the process of changing energy from one form into another.
Created by: Velic Selma



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