motion unit Flashcards
motion unit
how far something has moved
distance
it is the distance and direction of an objects change in position from the starting point
displacement
it is the distance an object travel per unit of time
speed
is the total distance travelled divided by the total time travel
average speed
the speed at a given point
instantaneous speed
the speed of an object and the direction of its motion
velocity
is the rate of change of velocity
acceleration
a push or pull
force
a force where both force cancel each other out
net force
forces on an object that are equal sizes and opposite in direction
balanced forces
is a the tendency of an object to resist any change in its motion
inertia
is the force that opposes the sliding motion of two surfaces that are touching each other
friction
the acceleration of an object in the same direction as the net force on the object and the acceleration can be calculated from following equation
newtons second law of motion
the resistance created by two objects when sliding against each other
static fraction
the force acting on an object that is moving through air flowing in the opposite direction
air resistance