B. Scientific Dictionary for Motion and its Applications

Search through Lessons One through Four to find the word, phrase or law* which best fits each definition, description or statement. When you have finished, the list will be in alphabetical order.

	the rate of change of velocity with respect to time, a vector quantity.
	the force of friction acting on an object moving through the air (aka drag).
	the kind of relationship where an increase in the magnitude of one variable corresponds to an increase in the magnitude of the other variable.
	the change in position, a vector quantity.
	a push or a pull tending to change the motion of an object.
	an abstract diagram in which an object's environment is replaced by the forces it exerts on the object.
	a force which always opposes motion.
	a two dimensional representation of the relationship between variables.
	the force of attraction between the earth and an object.
	the kind of relationship where an increase in the magnitude of one variable corresponds to a decrease in the magnitude of the other variable.
	* "Zero net force means zero acceleration."
	* "Acceleration varies directly with net force and inversely with mass."
	* "For every action force there is an equal and opposite reaction force."
	the perpendicular force exerted by a stable surface on an object in contact with the surface.
	the rate of change of displacement with respect to time, a vector quantity.