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19 Cards in this Set
- Front
- Back
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What is frame of reference?
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The objects used to define motion are F.O.R
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Objects that make up frame of reference are treated ..
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as if they are not moving.
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What two terms do scientists use to describe how far an object has moved?
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Distance and displacement
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Distance
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how far an object moves
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displacement
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a measure of how far the starting point is from the ending point.
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In many cases which is shorter displacement or distance
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displacement
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Do you need to give displacement and distance a length and direction?
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Yes
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Speed
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describes how far an object travels in a certain amount of time. aka how fast an object moves
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Velocity describes
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how fast an object is moving and in what direction it is moving.
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How do u calculate speed?
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Distance traveled and time it took are needed
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What is the SI unit for speed
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m/s
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ex of variable speed
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3m/s end on 0m/s
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Average speed or velocity is
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total distance traveled divided by total time it took to travel that distance.
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Equation for velocity or average speed
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V=D/T
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Instantaneous speed of an object is
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its speed at a given instant
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instant means
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point in time
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If an object is moving at a constant speed , its instantanious speed is BLANK to its constant speed
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Equal
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What is the symbol for speed ? What about Velocity?
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Both are v
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Equation for slope
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slope = Vertical change/horizontal change
or slope = Change in distance/ Change in time |
