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Fact Sheet all stuff
| Term | Definition |
|---|---|
| Vector | is a physical quantity that describes something’s magnitude (size) and direction |
| Scalar | is a physical quantity that describes something’s magnitude (size) |
| Displacement, d | indicates how far an object ends up from its initial position, regardless of its total distance traveled |
| Average Velocity, v | is displacement divided by the time interval over which that displacement occurred |
| Average Speed | is total distance divided by time duration |
| To determine how far from the detector an object is located | look at the vertical axis of the position-time graph |
| To determine how fast an object is moving | look at the steepness (i.e. the slope) of the position-time graph |
| To determine instantaneous speed from a curved position-time graph | take the slope of a tangent line |
| To determine which way the object is moving | look at which way the position-time graph is sloped |
| A position-time slope like a front slash / means | means the object is moving away from the detector |
| A position-time slope like a back slash \ means | means the object is moving toward the detector |
| Concave up, a U shape means | indicates a positive acceleration |
| Concave down, a frown means | indicates a negative acceleration |
| To determine how fast (speed) an object is moving | look at the vertical axis of the velocity-time graph |
| To determine which way the object is moving | look at whether the velocity-time graph is above or below the horizontal axis |
Created by:
Kendra9283
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