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Forces Vocabulary
forces vocab
Question | Answer |
---|---|
Momentum | the product of an objects mass and its velocity |
Formula for momentum | m=pv |
Laws of conservation of momentum | the total momentum of any group of objects remains the same unless outside forces also act on the objects |
force | a push or pull that gives energy to an object |
units of force | forces are measured in newtons; N |
net force | the toal of all the forces acting on an object |
inertia | the tendincy of matter to resist a change in its motion |
balanced forces | the net force acting on an object is zero |
unbalanced forces | the net force acting on an object is not zero |
magnitude | the amount (size) of a measurement |
friction | a force that one surface exerts on another when two surfaces are in contact with each other |