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chapter 9 perone
2/21/18
Question | Answer |
---|---|
reference point | place or object used for comparison to determine if an object is in motion |
motion | state in which one object's distance from another is changing |
when is an object in motion? | if its distance changes relative to a reference point |
velocity | rate of change of position in a given direction |
acceleration | rate at which velocity changes/ change in speed or direction |
increasing speed | motion at which speed increases |
decreasing speed | motion at which speed decreases |
change in direction | any time the object changes direction |
acceleration formula | FV-IV time |
speed formula | distance time |
average speed formula | total distance total time |
speed | the rate at which an object moves |
constant speed | when the speed of an objects stays the same |
average speed | the mean of at least more than one speed |