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Science 7 10-3/4

Science 7 10-3

QuestionAnswer
inertia object resists change in motion
mass measures the amount of inertia an object has
Newtons 1st Law object in rest stays at rest, object in motion stays in motion - unless acted upon by unbalanced force
Newton's 2nd Law acceleration depends on objects mass and net force acting on it
Increase acceleration increase force or decrease mass
Newton's 3rd Law equal and opposite force, action-reaction
momentum mass times velocity
law of conservation of momentum total momentum of objects stays the same (conserved) unless outside force acts on it
two moving objects momentum of one object increases and momentum of other decreases
one moving object all momentum transferred from moving object to nonmoving object (moving stops, nonmoving goes)
friction outside force that causes momentum not to be conserved (it is released)
Created by: jmeager