Calculate the acceleration due to gravity and the deviation for each height. The chart below shows four different times(s) an object hits the ground from four different heights(in). Kitchen Table Height= 30.5in Counter Top Height= 38in Sewing Table Height= 20in Chair Height = 17in 0.415 seconds (s) 0.484s 0.335s 0.308s 0.408s 0.684s 0.310s 0.303s 0.424s 0.634s 0.368s 0.310s 0.395s 0.505s 0.362s 0.305s

Acceleration may result from what? (2.3) (a) an increase in speed (b) a decrease in speed (c) a change in direction (d) all of the preceding

KEY TERMS 1. physics (intro) 2. position (2.1) 3. motion 4. scalar (2.2) 5. vector 6. average speed 7. distance 8. instantaneous speed 9. average velocity 10. displacement 11. instantaneous velocity 12. acceleration (2.3) 13. average acceleration 14. acceleration due to gravity 15. free fall 16. terminal velocity 17. centripetal acceleration (2.4) 18. projectile motion (2.5) For each of the following items, fill in the number of the appropriate Key Term from the preceding list. b. _____ Difference between final and initial velocities divided by time

Yes or no: Is each of the following quantities a vector? (a) force (b) temperature (c) the volume of water in a can (d) the ratings of a TV show (e) the height of a building (f) the velocity of a spoils car (g) the age of the Universe