CHAPTER 1 TEST REVIEW

Transcription

1 PRE-IB PHYSICS Name: DEVIL PHYSICS Period: Date: # Marks: 48 Raw Score: IB Curve: BADDEST CLASS ON CAMPUS CHAPTER 1 TEST REVIEW OVERALL OBJECTIVE: SC.912.P Analyze the motion of an object in terms of its position, velocity, and acceleration (with respect to a frame of reference ) as functions of time. OBJECTIVE: Know the meanings of the following terms: mechanics, kinematics, dynamics, translational motion, displacement, average speed, velocity, and uniformly accelerated motion. Understand that average acceleration is defined as the change in velocity divided by the time required to make this change. Understand that instantaneous acceleration is defined as the change in velocity divided over an infinitesimally short period time. 1. Define the following terms: a. ( 1 / ) mechanics b. ( 1 / ) kinematics c. ( 1 / ) dynamics d. ( 1 / ) translational motion e. ( 1 / ) displacement giancoli chap 2 test review 2011.docx Page 1 of 7

2 f. ( 1 / ) average speed g. ( 1 / ) velocity h. ( 1 / ) average acceleration i. ( 1 / ) instantaneous acceleration j. ( 1 / ) uniformly accelerated motion OBJECTIVE: Calculate average velocity when given a change in displacement and a change in time. 2. ( 3 / ) Yesterday while driving down 5 th avenue, I was able to get from 34 th street to 49 th street in 2 minutes and 6 seconds. If each block is a 1/10 th of a mile, what was my average velocity in mph? OBJECTIVE: Calculate change in displacement when given change in time and average velocity 3. ( 3 / ) How far would I go if I drove for 37 min when moving at m/s? giancoli chap 2 test review 2011.docx Page 2 of 7

3 OBJECTIVE: Calculate change in time when given change in displacement and average velocity 4. ( 3 / ) How long would it take to travel 102 cm when moving at 9.6 cm/min? OBJECTIVE: Calculate acceleration when given change in velocity and change in time 5. ( 3 / ) During my run down 5 th avenue, I got stuck behind a Bio teacher doing 15 mph (24 km/hr I was so bored driving so slow, I did the conversion). Once I got around her, I was able to accelerate to 70 km/hr in just 3.5 seconds. What was the acceleration of my rocket Nissan Frontier in m/s 2? OBJECTIVE: Calculate change in velocity when given acceleration and change in time 6. ( 3 / ) When I mash down on the brakes of my rocket Nissan Frontier, I can decelerate at 8.6 m/s 2. If I do that for 2 seconds while travelling at 25 m/s, what will my new speed be? OBJECTIVE: Calculate change in time when given acceleration and change in velocity giancoli chap 2 test review 2011.docx Page 3 of 7

4 7. ( 2 / ) The stoplights on 5 th avenue are timed so that if you drive an average m/s you can hit every one green. How long will it take me to accelerate from rest to that speed in my rocket Nissan Frontier if my acceleration is limited to 5.82 m/s 2 (because I have the A/C on)? 8. ( 0 / ) True or False (circle one) I spend way to much time driving down 5 th avenue. OBJECTIVE: Use kinematic equations to solve problems involving horizontal, uniformly accelerated motion. 9. ( 3 / ) A plane must reach a speed of 80 m/s in order to take off. At full power, the plane can maintain a constant rate of acceleration of 2.5 m/s 2. The runway is 1km long. Should the pilot go for it? 10. ( 4 / ) Jeff Gordon accelerates his #24 Dupont, Pepsi Chevrolet coming out of turn 2 and down the straightaway at Daytona. 5.2 seconds later he approaches turn 3 and his speed is 101.5m/s. If he exited turn 2 at 82.3m/s, how long is the straightaway? 11. ( 2 / ) After decelerating at m/s 2 for 3.2 seconds, I find myself travelling at 17 m/s. What was my speed before I started slowing down? OBJECTIVE: Use kinematic equations to solve problems involving vertical, uniformly accelerated motion. giancoli chap 2 test review 2011.docx Page 4 of 7

5 x (m) 12. A ball is dropped from a 60m tower. a. ( 2 / ) How long will it take to hit the ground? b. ( 2 / ) What will be the ball s velocity just before it hits the ground? 13. ( 2 / ) A slingshot propels a ball straight up into the air at 16.3 m/s. How high will it go? OBJECTIVE: Calculate velocity given a graph of displacement versus time. 14. ( 2 / ) Given the following graph, calculate the velocity from point A to point B A C B t (s) giancoli chap 2 test review 2011.docx Page 5 of 7

6 v (m/s) OBJECTIVE: Calculate acceleration given a graph of velocity versus time. 15. Given the following graph, a. ( 2 / ) Calculate the acceleration from point C to point D. b. ( 2 / ) Calculate the displacement from point A to point B B C A D t (s) 3-Point BONUS: A police car at rest is passed by a rocket Nissan Frontier travelling at a constant110 km/hr. The policeman takes off in hot pursuit and catches up to the very dashing and intelligent driver in 700 meters. If the police officer maintains a constant rate of acceleration, a. (1 pt / ) How long did it take to catch the witty and debonaire speeder? b. (1 pt / ) What rate of acceleration did the police car maintain in order to meet the popular and athletic driver? giancoli chap 2 test review 2011.docx Page 6 of 7

7 c. (1 pt / ) What was the speed of the police car when it overtook the handsome speeder who is often mistaken for a rock star? giancoli chap 2 test review 2011.docx Page 7 of 7