domingo, 22 de agosto de 2010

Foreces and Newton´s first Law (vocabulary # 1)

Force:a push or pull exerted by one object on another









Friction:a force that opposes the motion of an object in  contact with the surface














drag force:a force that oppose the motion of and object through a liquid or gas.

 
 gravity:a force of attraction that exist between all object with mas


 












net force:the combined effect  of all the forces acting on an object


balanced force: forces that cancel each other out when acting together on a single object


unbalanced force: forces that do not cancel each other out when acting together on a single object


inertia:the tendency of an object to oppose a change in motion



momentum: the mass of an object multiplied by its velocity



2 comentarios:

  1. You need to work on other vocabularies...
    keep working

    ResponderEliminar
  2. La plata del vestuario de la feria esta aparte de los veinte dolares

    ResponderEliminar