Force Flashcards
force =
mass x acceleration
an object will remain at rest or at constant speed…
until acted on by a resultant force
what can change velocity of an object
the resultant force, by change ints direction of speed
Spring constant (K) =
force / extension (X)
what is the limit of proportionality
when the force is not proportional to the extension anymore, therefore is the maximum the spring can hold otherwise it gets damaged
what are always in the same direction
the resultant force and the acceleration
what is solid friction
the force between two surfaces that may impede motion and produce heating
friction acts on objects moving through
liquids and gases (air resistance)
what is the moment of a force
the measure of its turning effect, like a seesaw
moment =
force x distance form the pivot
know that
force 1 x distance 1 = force 2 x distance 2
when there is no resultant force and no resultant moment
an object is at equilibrium
