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PHYSics TEST
Mrs. Eisenlord
| Question | Answer |
|---|---|
| When position changes compared to a reference point | motion |
| Speed at one moment in time | instantaneous speed |
| Total distance divided by total time | average speed |
| A non-moving object used to detect if something is moving | reference point |
| A graph that shows the motion of an object | position-time graph |
| A push or a pull | force |
| Most important constant force | gravity |
| When forces are not equal and not opposite; cause changes in motion | unbalanced force |
| When forces are equal and opposite; cannot change motion | balanced force |
| A force that is always on an object | constant force |
| A force that acts on an object for just a short bit of time | momentary force |
| A force that acts in the direction opposite an object's motion | friction |
| Stored energy | potential energy |
| Energy that is being used | kinetic energy |
| Heat energy | thermal energy |
| Energy cannot be created or destroyed, but it can be _______ | transformed |
| A line on a position-time graph that is going away from the reference point will be facing __ | up |
| A line on a position-time graph that is moving toward the reference point will be facing ____ | down |
| A line that means no motion will be ____ | flat |
| What kind of line means that the speed is constant? | straight |
| The x-axis on a position-time graph | time |
| The y-axis on a position-time graph | position |
| To solve an average speed problem, you use this operation | division |
| To solve a distance problem, you use this operation | multiplication |
| Gravity is shown in a force diagram as an arrow pointing ____ | down |
| We show forces in diagrams as ______ | arrows |
| Potential and kinetic are two types of ______ | energy |
| The ______ an object is lifted, the more potential energy it has | higher |
| If two objects are lifted to the same height, the object with more ____ will have more potential energy | mass |
| If there are two lines on a position-time graph, the _______ one is faster | steeper |