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Conceptual Physics Chap. 2 Hewitt
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Gravity
Terms in this set (13)
force
A push or pull exerted on an object
net force
The combination of all forces acting on an object
vector
An arrow that has represents the magnitude and direction of a quantity
vector quantity
a quantity that needs both magnitude and direction for a complete description
scalar quantity
a quantity that can be described by magnitude only and has no direction
mechanical equilibrium
a state wherein no physical changes occur
equilibrium rule
whenever the net force on the object is zero.
support force
the upward force that balances the weight of an object on a surface
resultant
the sum of two or more vectors
Static equilibrium
when an object is at rest
Dynamic equilibrium
Objects moving at constant speed in a straight-line path.
tension
A force that pulls on a material.
parallelogram rule
The resultant force can be found using a parallelogram where the vectors are adjacent sides. The diagonal of the parallelogram is the resultant.
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