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| Question | Answer |
|---|---|
| the rate of change in velocity of an object | acceleration |
| the force needed to create and maintain circular motion | centripetal |
| velocity increasing or decreasing steadily | constant acceleration |
| a scientific test in which there is only one variable | controlled experiment |
| a force caused by air rubbing on an object | drag |
| the ability to do work | energy |
| a push or a pull, measured in newtons pounds | force |
| a force created by the rubbing of two objects against each other | friction |
| the force of the earth's pull on an object | gravity |
| the energy of motion | kinetic energy |