forces Flashcards
(17 cards)
what quantity has magnitude only
scalar
what quantities does a vector have
magnitude and direction
what is a force
push/pull that acts on an object due to the interaction with other objects
what is a non contact force
objects are physically touching
what Is a non contact force
physically separated
what is an example of a contact force
air resistance and tension
what is an example of a non contact force
gravitiational force and magnet force
is a force a scalar or vector
vector
the weight of an object may be considered to act a single point referred to as …
centre of mass
the weight of an object and the mass of an object are …
directly proportional
how is weight measured
calibrated spring balance ( newton meter )
what is a single force called
the resultant force
1 joule =1
newtonmeter
work done against the frictional forces acting on an object can cause …
a rise in temp of the object
what is distance
how far am object moves
distance does not involve …
direction
