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Chapter 9-Science

What kind of motion does Acceleration refer to? Increasing Speed, Decreasing Speed, and Changing direction
The rate at which velocity changes is __________. acceleration
A decrease in speed is sometimes called Deceleration or negative acceleration
a type of motion where objects change direction but not speed is called circular motion
To determine acceleration of an object moving in a straight line, you must calculate the change in speed per unit of time
When a graph shows speed versus time as a slanted straight line the acceleration is constant
A graph of distance versus time for an accelerating object is curved
An object is in motion when its distance from another object changes
What is a reference point? a place or object used for comparison to determine whether something is in motion.
Created by: Jujubees