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12C Forces Terms Pt2
Question | Answer |
---|---|
What is inertia? | Property of matter that causes objects to resist changes in motion. Proportional to mass. |
What is Newton's first law? | If the net force acting on an object is zero, the object will maintain its state of motion or constant velocity. |
What is Newton's second law? | When the net force acting on an object is not zero, the object will accelerate in the direction of the net force. Fnet = ma |
What is mass? | How much matter is in an object. Same everywhere in the universe. Symbol m. |
What are the SI units for mass? | Kilograms |
What is weight? | The force of gravity acting on an object. Differs from place to place in the universe. Symbol Fg. |
What are the SI units for weight? | Newtons |
How can weight be calculated? | Fg = mg |
What is Newton's third law? | For every force, there is a reaction force equal in magnitude but opposite in direction. |
What is "mu"? | The coefficient of friction. Unitless quantity. |