Conceptual Physical Science 4th Edition
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12 terms
Terms | Definitions |
|---|---|
 SPEED | DISTANCE COVERED PER AMOUNT OF TIME: DISTANCE COVERED/TRAVEL TIME |
| INSTANTANEOUS SPEED | THE SPEED AT ANY GIVEN INSTANT |
| AVERAGE SPEED | DISTANCE TRAVELED DIVIDED BY THE TRAVEL TIME |
| CONSTANT SPEED | SPEED THAT DOES NOT CHANGE OVER TIME |
| VELOCITY | THE SPEED OF AN OBJECT & ITS DIRECTION OF MOTION |
| ACCELERATION | CHANGE IN VELOCITY DIVIDEDBY THE TIME NEEDED FOR THE CHANGE TO OCCUR |
| FORCE | A PUSH OR A PULL.......SI UNIT IS NEWTON (N) |
| BALANCED FORCE | IF 2 OR MORE FORCES ARE BALANCED.....THEIR EFFECTS CANCEL EACH OTHER OUT |
| UNBALANCED FORCE | IF THEIR EFFECTS DO NOT CANCEL EACH OTHER OUT |
| NET FORCE | WHEN MORE THAN ONE FORCE ACTS ON AN OBJECT, THE FORCES ARE COMBINED |
| INERTIA | TENDENCY TO RESIST A CHANGE IN MOTION |
| FRICTION | FORCE BETWEEN 2 SURFACES IN CONTACT THAT RESISTS THE MOTION OF THE SURFACES PAST EACH OTHER |
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