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Changes in M, F, D
Changes in Motion, Force, and Direction
Question | Answer |
---|---|
When an object is at rest, what energy is the greatest? | potential |
When an object is in motion, what energy is the greatest? | kinetic |
Mrs. Goff's dog _____ is kinetic energy. | running |
Mrs. Goff's dog _____ is potential energy. | resting |
What is a push or pull? | force |
All changes in _____ require the input of a force. | motion |
What is motion? | a change in position |
What is inertia? | to do nothing |
An object will stay at rest or in motion until an outside force acts on it. | Newton's First Law |
Force equals mass times acceleration. | Newton's Second Law |
Action - reaction law | Newton's Third Law |
What measures force? | Newtons |
What measures mass? | Kilograms |
What measures acceleration? | Meters per second squared |
When forces are in balance, the object is at _____. | rest |
When forces are not balanced, the object is in _____. | motion |
What is speed? | how fast something is moving |
What is velocity? | how fast something is moving and the direction |