HPhys2

The flashcards below were created by user doctorwhogirl998 on FreezingBlue Flashcards.

1. Position:
separation from a reference point
2. Distance:
separation between two objects
3. Scalar:
a quantity that only has magnitude or size
4. Vector:
a quantity that has both magnitude and direction
5. Displacement:
magnitude and direction of an object’s change in position (a vector); can be positive or negative
6. Distance:
a scalar quantity
7. Speed:
ratio of distance traveled to time interval
8. Velocity:
ratio of change in position to time interval over which change took place
9. Constant velocity:
if v is the same for all time intervals
10. Slope of position-time graph
is velocity
11. If position-time graph is a straight line
object is moving at constant velocity.
12. Instantaneous velocity:
velocity of an object at a given instant
13. Instantaneous velocity
is slope of the tangent at the time on a position-time graph
14. Acceleration:
ratio of the change in velocity to the time interval over which it occurs.
15. Slope of velocity-time graph
is acceleration
16. For uniform acceleration
Velocity-time graph is a straight line
17. Area under a velocity-time graph
is displacement.
18. Area under acceleration-time graph
is change in velocity.
19. Acceleration is constant during upward or downward motion
 Author: doctorwhogirl998 ID: 189524 Card Set: HPhys2 Updated: 2012-12-14 22:04:32 Tags: Physics Folders: Description: Physics: Motion in One Dimension Show Answers: