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motion
word | defenition |
---|---|
contact force | when two objects hit or bump into each other (friction) |
inertia | objects want to resist motion (at rest stays at rest in motion stays in motion) |
Action-at-a-distance force | when two forces act on each other but don't touch or bump (gravity) (magnets repealing) |
newtons 1 law | Something at rest stays at rest and something in motion stays in motion (law of inertia) |
newtons 2 law | the force needed to move an object depends on mass and acceleration (when moving with more force it will go faster) |
for every action there has to be a equal and opposite reaction | |
net force | a combination of forces acting on a object |
units for force | newtons |
units for acceleration | M/S squared |
formula for force | F=ma |
calculation of net force | 1v+2v=3v same direction add different subtract |