The observations you make during this activity show one of the laws of motion: A force is needed to change the speed or direction of an object.
(you; make; T:during this activity show) (A force; is needed; to change the speed or direction of an object) (A force; to change; the speed or direction of an object)
you A force A force
make is needed to change
T:during this activity show
to change the speed or direction of an object
the speed or direction of an object