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5F1
5F Ch1 Vocabulary
Term | Definition |
---|---|
work | The use of force to move an object through a distance |
friction | A force that opposes motion when two surfaces rub against each other. |
magnetism | A force of pushing or pulling between magnetic poles. |
gravitation | A force that pulls all objects towards each other. |
force | A push or pull that causes an object to move, stop, or change direction. |
machine | A thing that makes work seem easier by changing the size or direction of a force. |
balanced forces | Forces equal in size and opposite in direction. |
unbalanced forces | Opposing forces of which one force is greater than the other. |
power | The amount of work done for each unit of time. |
net force | The value of combined forces on an object. |