Set: PS Vocab 9-9-09 to 10-06-09

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All 14 terms

TermDefinition
motiona change in position in a certain amount of time
frame of referencea system of objects that are moving relative to one another
relative motionthe movement of an object relative to a frame of reference
distancethe length of the path between two points
sciencea system of knowledge and methods used to find that knowledge
technologyapplication of knowledge
scalarquantity described by magnitude but not direction (time, area, volume)
vectora quantity that has magnitude and direction
speedratio between the distance an object moves and the amount of time required to move that distance
average speedthe overall rate of speed at which an object moves; calculated by dividing the total distance an object travels by the total time
instantaneous speedthe rate at which an object is moving at a given moment in time
velocitythe speed of an object in a particular direction
accelerationthe rate at which velocity changes over time
forcea push or a pull that causes an object to accelerate

Set Information

Terms 14
Creator kevinzhengli
Created October 7, 2009
Groups None
Subjects physical, science, force, motion, gravity, velocity, acceleration, speech
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Description

Physical Science Vocab list for 9-9-09 to 10-06-09

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Most Missed Words

  1. acceleration the rate at which velocity changes over time - 3 misses
  2. speed ratio between the distance an object moves and the amount of time required to move that distance - 3 misses
  3. distance the length of the path between two points - 2 misses
  4. force a push or a pull that causes an object to accelerate - 2 misses
  5. average speed the overall rate of speed at which an object moves; calculated by dividing the total distance an object travels by the total time - 2 misses
  6. relative motion the movement of an object relative to a frame of reference - 2 misses
  7. motion a change in position in a certain amount of time - 2 misses