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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 |