lesson 1 Flashcards
(10 cards)
force
a push or pull exerted on an object
newton
how scientists measure force
velocity
the speed of an object in a particular direction
acceleration
the rate of which velocity changes
projectile movement
movement of objects, such as a ball
trajectory
the curved path an object takes
vector
describes both how fast something is and what direction i is in
gravity
force of attraction between objects that is due to their masses and that decreases at the distance between the object decreases
netforce
some of all the forces acting on the object
noncontact forces
that can act at a distance