Frame of reference:
a zero point from which physical quantities are measured
Displacement:
a change in position in a certain direction
Velocity:
displacement in a given time (speed is the magnitude of velocity) (direction is the same as displacement)
Acceleration:
a change in velocity in a given time
Kinematics:
motion under constant acceleration Galileo derived the ____ equation through experimentation. He used 2 experiments.
Position:
an object's location
Galileo
developed the kinematics equations which explain projectile motion.