Motion Flashcards
scalar
a quantity with magnitude and no direction
vector?
a force with magnitude and direction
Is velocity scalar or vector
vector
displacement
Straight line distance and direction between the start and end point
is displacement scalar or vector
vector
is speed scalar or vector
scalar
what is the formula for acceleration
a = (v-u)/t
what is the unit of acceleration
m/s^2 or ms^-2
is acceleration vector or scalar
vector
Newtons first law
Law of inertia. An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Newtons second law
f = ma
Newtons third law
For every action there is an equal and opposite reaction
define acceleration
change of speed or direction
if the acceleration is 0, what is the total net force on the object
0N
what could an object be doing if it has no net force?
Constant speed/stationary
