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
Physics
Time, speed, Displacement, Acceleration
| Term | Definition |
|---|---|
| Time | The SI unit of time is seconds |
| Distance | The SI Unit of distance is meters |
| Displacement | Distance in a given direction |
| Velocity | The rate of change of displacement with respect to time |
| Speed | Is the rate pof change of distance with respect to time, SI u it is meter per second |
| Instantaneous Speed | is the speed of an object at a particular instant or point in time |
| Instantaneous speed = | The average speed measured over a very short distance or time interval to a very high degree of accuracy |
| Constant Velocity | If an object moves in a straight line and does not speed up or slow down, it has a constant velocity |
| Acceleration | The rate of change of velocity with respect to time |
| Uniform acceleration | If an object is picking up or losing velocity at the same steady rate or if the average velocity between any two points in a journey wy is always the same, then that body has a constant acceleration |
| Velocity time graphs: slope= Area underneath= straight line= | the slope is the acceleration the area underneath is the distance travelled if the slope is a straight line then its acceleration is constant |
| Sources of error in measuring acceleration due to gravity using free fall apparatus | Use smallest value for t since inaccurate measurements tend to be overstated avoid parallax error when measuring s & measure from the bottom of the ball Ensure the ball used is small, dense, polished, round, sphere. the air resistance is negligible |
Created by:
user-1973937