AP 物理 运动学 习题讲义.pdf

Graphs and kinematics 1 Which is the best line for the data ABC 2 What graph will straighten this curve A y vs xC y vs x2 B y vs 1 x D y vs x 3 What proportion is shown A Y xC Y x2 B Y 1 x D Y sinx Y X 4 Does this show ACCURACY PRECISION BOTH or NEITHER A ACCURACY B PRECISION C BOTH D NEITHER 5 What kind of relationship A LinearC Inverse B Logarithmic D Power 6 Objects A and B display strobe images as shown above Which object is accelerating A Object A B Object B C Both A and B D Neither object is accelerating A B 7 When do the objects have the same speed A At instant 2 B At instant 5 C Between instant 3 and 4 D They never have the same speed A B 8 An object makes the following velocity vs time graph 7 19 2010 9 When is the object at rest A Between 3 and 4 seconds B At 6 seconds C It is never at rest An object makes the following velocity vs time graph 7 19 2010 10 Over 6 seconds the object traveled A A net positive displacement B A net negative displacement C Zero net displacement D Cannot tell without a d vs t graph A ball is tossed straight up with 30 m s initial velocity How many seconds until the ball reaches the maximum height g 10m s2 A 1 0 sec B 3 0 sec C 6 0 sec D 9 0 sec 7 19 2010 11 A ball is tossed straight up with 30 m s initial velocity Use average speed and the 3 0 sec to peak to find the maximum height of the ball g 10m s2 A 15 m B 30 m C 45 m D 90 m E 150 m 12 If an object has acceleration and velocity in opposite directions what is true about its motion A The object is speeding up B The object is slowing down C The object has constant velocity D The object is at rest 13 What do scientists prefer A One theory that explains many different phenomena B A different theory to explain each different phenomenon