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Lesson 1 MOTION
Term | Definition |
---|---|
postion | the exact place an object is |
direction | the way an object faces |
motion | a change in an object's location |
distance | how far something travels |
speed | a measure of how fast or slow something moves |
relative | compared with |
predict | to tell what is likely to happen in the future |
force | a push or pull that can act on or change an object |
contact forces | a push or pull that happens when two objects touch |
tension force | the pulling force that stretches objects |
spring force | force exerted by an object that has been stretched or squeezed |
friction | a force that goes against movement of an object |
noncontact force | a force that acts on an object without touching it |
gravity | the force that pulls objects toward each other |
gravity | the force that pulls objects toward each other |
exert | to apply strength or effort |