motion
Terms
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- acceleration
- the rate at which velocity changes. refers to increasing speed, decreasing speed, and changing direction
- slope
- rise divided by run
- intantaneous speed
- the rate at which an object is moving at a given instant in time
- kilo-
- one thousand
- slope
- the steepness of a line on the graph. tells u how how fast 1 variable changes in relation to the other
- motion
- an object is in motion when its distance from another object is changing
- calculating speed
- distance divided by time
- acceleration in a straight line
- final speed minus initial speed divided by time
- speed
- of an object is the distance the objest travels per unit of time
- average speed
- divide the total distance divided by teh total time
- reference point
- is a place or object used for comparison to determine if something is in motion
- run
- horizontal
- international system of units
- a system thst scientists use all over the world so they can communicate clearly
- milli-
- one thousandth
- graphing acceleration
- u can use both a speed- verus-time graph and a distance- versus- time graph to analyze the motion of an accelerating object
- centi-
- one hundreth
- rise
- up
- distance-versus-time graph
- curved line tells u that the object is accelerating
- speed- versus- time graph
- to find acceleration u must calculate the slope of the line : rise divided by run
- straight line acceleration
- to determine the acceleration of an object moving in a straight line u must calculate the change in speed per unit of time
- velocity
- speed in a given direction ex: 25km/h eastward