Chapter 1.1-1.4 Flashcards
1
Q
motion
A
an object’s change in postion relative to a reference point
2
Q
speed
A
the distance traveled divided by the time interval during which the motion occurred
3
Q
velocity
A
the speed of an object in a particular direction
4
Q
acceleration
A
the rate at which velocity changes
5
Q
force
A
a push or pull
6
Q
newton
A
the SI unit for force
7
Q
net force
A
the combination of all of the forces acting on an object
8
Q
friction
A
a force that opposes motion between two surfaces that are in contact
9
Q
gravity
A
a force of attraction between objects that is due to their masses
10
Q
weight
A
a measure of the gravitational force on an object
11
Q
mass
A
a measure of the amount of matter in an object
