The Need for Speed

1. the rate at which the velocity of an object changes
3. an object shot through the air
6. a coordinate system from which motion is viewed
8. motion where the object's velocity doesn't change
12. a push or pull exerted on an object; has both direction and magnitude and may be a contact or a field force
13. distance divided by time
15. a series of images showing the positions of a moving object taken at regular time intervals
16. the magnitude of the acceleration vector while the direction of the acceleration is the direction of the acceleration vector
18. motion where the object's velocity increases and the object accelerates downward
19. you use this method to add vectors together
20. the force that causes a projectile to curve downward

2. the center-seeking acceleration of an object moving in a circle at a constant speed
4. the apparent force that seems to pull on a moving object but does not exert a physical outward push on it and is observed only in rotating frames of reference
5. a quantity, such as position, that has both magnitude and direction
7. the movement of an object at a constant speed around a circle with a fixed radius
9. the path followed by a projectile
10. diagram that depicts the direction and relative magnitude of a vector quantity
11. the change in the position of an object over time
14. the time needed for a body to rotate once on its axis
17. the path of a projectile through space