Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Phys 02 Motion
Linear Motion (Speed, Acceleration, Motion Graphs) Terms
| Question | Answer |
|---|---|
| physics term for your 'surroundings' | frame of reference |
| reference point (0,0) in a coordinate system | origin |
| meaning of "at rest" | motionless |
| location within the frame of reference | position |
| change in position with respect to surroundings (frame of reference) | motion |
| when your motion can be different depending on what it is compared to, that is _?_ motion | relative |
| when riding on an elevator, you are motionless compared to _?_ | the inside of the elevator |
| when riding on an elevator, you are moving relative to _?_ | the floors in the building, etc. |
| when treating an object as a single point in motion, you are using the _?_ model | particle |
| describe the motion: .............. | slower steady speed |
| describe the motion: . . . . . . . . | faster steady speed |
| describe the motion: . . . . . . . | very fast steady motion |
| describe the motion: .. . . . . . . . | accelerating |
| separation between positions | distance |
| distance in a particular direction | displacement |
| abbreviation for distance/displacement | ∆x |
| quantity having only magnitude (size) | scalar |
| quantity having BOTH magnitude (size) and direction | vector |
| total distance ÷ total time | average speed |
| rate of change of distance (or "how fast") | speed |
| quantity measured with a speedometer | instantaneous speed |
| device in car that measures total distance traveled | odometer |
| rate of change of displacement (speed in a particular direction) | velocity |
| examples include +25 m/s, or 15 m/s East | velocity |
| SI unit of distance or displacement | m |
| SI unit of speed or velocity | m/s |
| direction assigned to negative (–) horizontal displacement or velocity | west |
| direction assigned to positive (+) horizontal displacement or velocity | east |
| symbol for speed or velocity | v |
| SI unit for time | s |
| rate of change of speed/velocity | acceleration |
| SI unit of acceleration | m/s^2 (m/s/s) |
| another term for negative (–) acceleration... but don't use it in physics! | deceleration |
| abbreviation for acceleration | a |
| abbreviation for acceleration due to gravity | g |
| gravitational acceleration near Earth's surface (3 significant digits) | 9.80 m/s^2 |
| graph shape that indicates y is independent of x | horizontal line |
| graph shape that indicates y is directly proportional to x | linear (diagonal) line |
| graph shape that indicates y is inversely proportional to x | hyperbolic |
| graph shape that indicates y is proportional to the square of x | parabolic |
| x-t graph for object at rest | horizontal line (may be on or above the x-axis) |
| v-t graph for object at rest | horizontal line on the x-axis (0) |
| a-t graph for object at rest | horizontal line on the x-axis (0) |
| x-t graph for object at constant speed/velocity | linear (diagonal) line |
| v-t graph for object at constant speed/velocity | horizontal line (above x-axis) |
| a-t graph for object at constant speed/velocity | horizontal line on the x-axis (0) |
| x-t graph for object undergoing constant acceleration | parabola |
| v-t graph for object undergoing constant acceleration | linear (diagonal) line |
| a-t graph for object undergoing constant acceleration | horizontal line (above x-axis if +, below x-axis if –) |
| synonym for "constant" or "unchanging" used to describe motion | uniform |
| slope of an x-t graph: unit and quantity given | m/s; speed |
| slope of a v-t graph: unit and quantity given | m/s^2; acceleration |
| slope of an a-t graph: unit and quantity given | m/s^3; the 'jerk' |
| area underneath an x-t graph: unit and quantity given | m•s; --- |
| area underneath a v-t graph: unit and quantity given | m; distance |
| area underneath an a-t graph: unit and quantity given | m/s; (change in) speed |
| if graph lines A & B on an x-t graph cross at point P, what does that represent? | A & B are at the same place (ex: A passes B at point P) |
| if graph lines A & B on a v-t graph cross at point P, what does that represent? | A & B are moving at the same speed at P (not passing!!!) |
| if the motion of A and B are on the same x-t graph, how do you know which is going faster? | the faster one has a steeper graph |
| if the motion of A and B are on the same a-t graph, how do you know which has the greatest change in speed? | the one with greater change will have a larger area between its graph |
Created by:
goakley
Popular Physics sets