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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 |