lesson 3 Flashcards
1
Q
motion
A
change in an object’s position relative to a reference point
2
Q
reference point
A
a location to which another location is compared
3
Q
speed
A
the distance traveled divided by the time interval during which the motion occurred
4
Q
velocity
A
the speed of an object in a particular direction
5
Q
acceleration
A
the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change
6
Q
inertia
A
an object’s resistance to any change in motion
7
Q
deceleration
A
acceleration in a negative direction, diminishing of speed
8
Q
force
A
any action that changes the shape or the movement of an object
9
Q
friction
A
the force that slows objects down when they rub against each other
10
Q
accelerometer
A
used the measure acceleration
