motion
changing position relative to a reference point
displacement
distance and direction of a change in position relative from the starting point
speed
the rate at which an objects position changes
what are the axis's on a distance time graph
time is the x axis and distance is the y axis
what is the slope on a distance time graph
the speed
velocity
the distance and the speed relative to a reference point
how is an objects position described
relative to a reference point
what is momentum
defined for a particular frame of reference and the product of mass and velocity
acceleration
the rate of change of velocity
speed increases when
the acceleration and velocity are in the same direction
speed decreases when
the acceleration and velocity are in opposite directions
if an object is moving in a straight line the change in velocity is
the final speed minus the initial speed
acceleration toward the center of a curved path
centripetal acceleration