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Forces Review
Physics review of forces
Question | Answer |
---|---|
SI unit for force | Newtons |
SI unit for mass | kilograms |
SI unit for acceleration | m / s^2 |
anything that causes an object to accelerate | force |
force that must touch the object it works on | contact |
force that acts from a distance | field |
force that always acts in the opposite direction of the motion | friction |
force that is equal and opposite of gravity when object is on a level surface ; aka support force | normal |
force that opposes gravity when object is falling through the air | air resistance |
diagram of all the forces acting on an object | free body diagram |
the sum of all the forces acting on an object | net force |
"F = ma" is this law of motion | 2nd |
"For every force, there is an equal and opposite force" is this law of motion | 3rd |