12 terms

Chapter 1 Motion

STUDY
PLAY
Speed
The distance traveled by an object divided by the time taken to travel that distance.
Velocity
The speed of an object in a particular direction.
Acceleration
The rate at which velocity changes .
Reference Point
An object that helps determine if another object is moving.
Motion
When an object changes position over time relative to a reference point.
SI Unit for Speed
m/s
SI Unit for Acceleration
m/s²
(m/s/s)
International System of Units (SI)
A system of units that scientists use for measurement worldwide.
Distance
The length of a path between two points.
Average Speed
Total distance divided by total time.
Instantaneous Speed
The speed an object is moving at a given instant of time.
Slope
The steepness of a line on a graph; tells how fast one variable changes in relation to another variable on a graph.