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Kinematics Review
| Question | Answer |
|---|---|
| Define Scalar | Quantities that are a fully described magnitude |
| Define Vector | Quantities that are fully described by both a magnitude and a direction |
| Define Velocity | Rate of change of position |
| Define Acceleration | Rate of change of velocity |
| Define Mechanics | The study of describing motion using diagrams, words, numbers, graphs, and equations |
| Distance: Scalar or Vector | Scalar |
| Displacement: Scalar or Vector | Vector |
| Speed: Scalar or Vector | Scalar |
| Velocity: Scalar or Vector | Vector |
| Acceleration: Scalar or Vector | Vector |
| 5 Miles: Scalar or Vector | Scalar |
| 2 in, up: Scalar or Vector | Vector |
| 20 Degrees Fahrenheit: Scalar or Vector | Scalar |
| 3ft North: Scalar or Vector | Vector |
| If you walked 15 meters to the right and then 6 to the left what is your displacement if the origin is 0? | 9 Meters |
| If you walked 6 to the right and 3 to the left what is the distance? | 9 Meters |
| An object is moving for 10 seconds and went a total distance of 100 meters. What was the speed? | 10 m/s |
| T/F If the velocity of an object is constant, its acceleration must be zero | True |
| T/F An object can be moving for 10 seconds and still have zero displacement | True |
| T/F A vector is a large quantity and a scalar is a small quantity | False |
| T/F The quantity 20 m/s is a speed and such is a scalar quantity | True |
| An object was traveling for 10 m/s and went a total of 20 meters. How long did it take them to reach the 20 meters? | 2 seconds |
| Formula for velocity | Xf - Xi --------- t |
| What do you round to when calculating velocity? | Hundreths |
| An object starts 10 meters from the origin and ended up -3 meters from the origin. This took 13 seconds. What is the velocity? | -1 m/s |
| Falling at an average acceleration of 9.8 m/s/s. If the object falls how long will it take for it to reach a speed of 49 m/s? | 5 seconds |
| _____ Slope = positive direction | Uphill |
| _____ Slope = negative direction | Downhill |
| Constant velocity is a _______ line | Straight |
| Changing velocity is a _______ line | Curved |
| A curved line = _______ | Acceleration |
| An object is stopped when the line is _________ | Horizontal |
| If the line is horizontal it's velocity is ______ m/s | Zero |
| To find velocity you take displacement divided by ______ | Time |
| Slope = _______ | Velocity |
| If the object is going in a negative direction it's velocity is _____ | Negative |
| If the object is going in a positive direction it's velocity is _____ | Positive |
| Constant velocity is represented by a _______ line | Horizontal |
| Changing velocity is represented by a ________ line | Straight |
| Slope = _________ | Acceleration |
| When the object is a rest it crosses the ___ axis | X |
| When the object speeds up it is going _____ the X-axis | Away |
| When the object slows down it is going _____ the X-axis | Towards |
Created by:
16esmith
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