They can change the direction of motion, increase or decrease the speed of the applied motion, and magnify or reduce the force that you apply.
(They; can change; the direction of motion) (They; increase; ) (the force; apply; you) (They; decrease; the speed of the applied motion) (They; magnify; )
They They the force They They
can change increase apply decrease magnify
the direction of motion
you
the speed of the applied motion