lesson 1 Flashcards
1
Q
force
A
a push or pull exerted on an object
2
Q
newton
A
how scientists measure force
3
Q
velocity
A
the speed of an object in a particular direction
4
Q
acceleration
A
the rate of which velocity changes
5
Q
projectile movement
A
movement of objects, such as a ball
6
Q
trajectory
A
the curved path an object takes
7
Q
vector
A
describes both how fast something is and what direction i is in
8
Q
gravity
A
force of attraction between objects that is due to their masses and that decreases at the distance between the object decreases
9
Q
netforce
A
some of all the forces acting on the object
10
Q
noncontact forces
A
that can act at a distance
