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Physics for exam
First Exam
| Question | Answer |
|---|---|
| Change in position over time | Motion |
| what you are comparing motion to | Frame of Reference |
| states where the zero point is and the direction the value increases | Coordinate System |
| same distance traveled each second (faster it goes, steeper the slope) | Constant Speed |
| Series of points which represents position over equal intervals of time | Motion Diagram |
| the length between 2 points | distance |
| magnitude- no direction (ex. distance) | Scalar quantity |
| distance and direction | displacement |
| Magnitue and direction (ex. displacement) | vector quantity |
| At a constant velocity average velocity equals the ___________ ___________ | instantaneous velocity |
| Displacement- with constant acceleration | d=1/2(Vf+Vi)t |
| maximum speed that a falling object can reach | terminal velocity |
| time it takes to go up and go down are the ____ if it is thrown and caught at the same velocity. | same |
| an object shot in the air | projectile |
| path an object takes | trajectory |
| When an object is moving in ______ motion it has a constant velocity | horizontal |
| When an object is moving in _______ motion, gravity caues it to accelerate at 9.8m/s/s | Vertical |
| Horizontal motion and vertical motion are _____ of each other | independent |
| How does the acceleration due to gravity affect the velocity of a falling object? | |
| sum of all forces acting on an object | net force |
| when fnet=0, no accleration and the object is either at rest or moving t a constant velocity the object it in ________ | equilibrium |
| the force that is perpendicular to the surface, magnitude is equal to gravity | normal force |
| the force an object expereinces as a result of all the forces acting on it | apparent weight |
| a push or pull exerted on an object | force |
| Newton's second law | the acceleration of an object is equal to the sum of the forces acting on the object, divided by the mass of the object |
| Newton's first law | an object that is at rest will remain at rest, and an object that is moving will continue to move in a straight line with constant speed, if and only if the new force acting on that object is zero. |
| the tendency of an object to resist change | inertia |
| the force exerted by a fluid on the object moving through the fluid. | drag force |
| Newton's Third Law | all forces come in pairs |
| a force exerted by a string or rope | tension |
Created by:
amandasiwek
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