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