Chapter 1 Vocabulary Flashcards
1
Q
motion
A
an objects change in position relative to a reference point
2
Q
speed
A
the distance traveled divided by the time interval during which the motion occured
3
Q
velocity
A
the speed of an object in a particular direction
4
Q
acceleration
A
the rate at which velocity changes over itme
5
Q
force
A
a push or pull exerted on an object in order to change the motion of the object:force has size and direction
6
Q
Newton (N)
A
the SI unit for force
7
Q
net force
A
the combination of all of the forces acting on an object
8
Q
frcition
A
a force that opposes motion between two surffaces that are in contact
9
Q
gravity
A
a force of atttraction between objects that is due to their masses
10
Q
weight
A
a measure of a gravitational force on an object
11
Q
mass
A
a measure of the amount of matter in an object
