Unit 1 Forces and Motion Flashcards
1
Q
a force of attraction between objects that is due to their masses and that decreases as the distance between the objects increases
A
gravity
2
Q
a push or a pull exerted on an object that may change the motion or shape of the object; force has strength and direction
A
force
3
Q
the SI unit for force (symbol, N)
A
newton
4
Q
the speed of an object in a particular direction
A
Velocity
5
Q
the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change
A
acceleration
6
Q
velocity is an example of it
A
vector
7
Q
the movement of objects such as a ball through space
A
projectile motion
8
Q
The curved path the ball takes through the air
A
trajectory
9
Q
a force that isnt even
A
unbalanced force
10
Q
the friction of air molecules
A
drag
