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Forces Test
flashcards on different forces
Question | Answer |
---|---|
What is a force? | A push or a pull that acts on an object. |
What are forces measured in? | Newtons |
What is friction? | A force that opposes the motion of objects that touch as they move past each other |
What are the four types of friction? | Static Friction, Sliding friction, Rolling friction, and Fluid Friction |
What is gravity? | A force that acts between any two masses |
What is projectile motion? | The motion of a falling object after it is given an initial forward velocity |
What is weight? | The force of gravity acting on an object |
What is mass? | The amount of matter in an object. |
What is Newton’s first law of motion? | The state of motion of an object does not change as long as the net force acting on the object is zero |
What is inertia? | The tendency of an object to resist a change in it’s motion |
What is Newton’s second law of motion? | F=M(A) |
What is Newton’s third law of motion? | Whenever one object exerts a force on the second object, the second object exerts a equal and opposite force on the first object |
Do action and reaction forces cancel? | Action and Reaction forces do not cancel |
What are net forces? | The overall force acting on an object after all the forces are combined |