Q3 final Flashcards
inertia
the tendency of an object to resist its change in motion
mass
the amount of matter in objects
weight
the force of gravity pulling on an object
equilibrium
there is no change in the objects motion | the net force is 0
force
a push or pull on an object
net force
the sum of all the forces acting on an object
normal force
the force of a surface pushing upward on an object, it is always perpendicular to the surface
distance
the total distance actually traveled by an object
Support force
Another name for normal force
displacement
where an object ends up relative to where it started
speed
the distance an object goes in a certain amount of time
velocity
speed plus direction; the displacement of an object in a certain amount of time
acceleration
a change in velocity
scalar
a quantity that has only magnitude
vector
a quantity with magnitude AND direction
newtons 1st law
objects have inertia
newtons 2nd law
f = ma
newtons 3rd law
equal and opposite reaction
free fall
when the only force acting upon an object is gravity
terminal velocity
when the force of air resistance on a falling object is equal to the force of gravity (as fast as you are falling)
momentum
inertia and motion (momentum = mv)
impulse
a force applied for an amount of time (P = Ft)
