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6th gr Forces

TermDefinition
force push or pull on matter that enables that matter to CHANGE motion and interact
contact force actual touch or contact to interact with matter
noncontact force exist without touch or contact and still influence matter
applied force contact - directly applied to object; example: pushing on a wall
normal force contact - a support force; example: a book resting on a table
friction contact - force of surfaces resistance against an object's motion along it
gravitational noncontact - force of ATTRACTION between MASSES of matter
magnetic noncontact - force of ATTRACTION or Repulsion between CHARGES of matter
unbalanced forces change the motion of an object
balanced forces keep the object in motion with a constant speed and in the same direction OR at rest
Newtons (N) unit of measurement of a force; is named after Sir Isaac Newton
spring scale force sensor can be used to measure force in Newtons
magnitude quantity or amount
net force the sum of all forces acting on an object; if BALANCE =0, if UNBALANCED ≠0
Created by: NEISDSci
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