1	Kinematics Review September, 2004 Mrs. Graessle
2	Question 1 Suppose a car is moving in a straight line and steadily increases its speed. It moves from 35 km/h to 40 km/h the first second and from 40 km/h to 45 km/h the next second. What is the car’s acceleration? A) 5 km/h/s B) 10 km/h/s C) 35 km/h/s D) 40 km/h/s
3	Question 1 Suppose a car is moving in a straight line and steadily increases its speed. It moves from 35 km/h to 40 km/h the first second and from 40 km/h to 45 km/h the next second. What is the car’s acceleration? A) 5 km/h/s B) 10 km/h/s C) 35 km/h/s D) 40 km/h/s
4	Question 2 Speed is A) a measure of how fast something is moving B) the distance covered per unit of time C) always measured in terms of distance divided by a unit of time D) all of these E) none of these
5	Question 2 Speed is A) a measure of how fast something is moving B) the distance covered per unit of time C) always measured in terms of distance divided by a unit of time D) all of these E) none of these
6	Question 3 When something falls to the ground, it accelerates. This acceleration is called the acceleration due to gravity and is symbolized by the letter g. What is the value of g on the earth’s surface? A) 0 m/s/s B) about -5 m/s/s C) about -10 m/s/s D) about 10 m/s/s
7	Question 3 When something falls to the ground, it accelerates. This acceleration is called the acceleration due to gravity and is symbolized by the letter g. What is the value of g on the earth’s surface? A) 0 m/s/s B) about -5 m/s/s C) about -10 m/s/s D) about 10 m/s/s
8	Question 4 As an object falls freely in a vacuum, its A) velocity increases. B) acceleration increases. C) both a and b D) none of the above
9	Question 4 As an object falls freely in a vacuum, its A) velocity increases. B) acceleration increases. C) both a and b D) none of the above
10	Question 5 A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be A) more than the speed it had when thrown upwards. B) less than the speed it had when thrown upwards. C) the same as the speed it had when thrown upwards.
11	Question 5 A ball is thrown upwards and caught when it comes back down. In the absence of air resistance, the speed of the ball when caught would be A) more than the speed it had when thrown upwards. B) less than the speed it had when thrown upwards. C) the same as the speed it had when thrown upwards.
12	Question 6 Ten seconds after starting from rest, a freely falling object will have a speed of about A) 10 m/s. B) 50 m/s. C) 100 m/s. D) 500 m/s E) more than 500 m/s.
13	Question 6 Ten seconds after starting from rest, a freely falling object will have a speed of about A) 10 m/s. B) 50 m/s. C) 100 m/s. D) 500 m/s E) more than 500 m/s.
14	Question 7 If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting point is about A) 1 second. B) 2 seconds. C) 10 seconds. D) 20 seconds. E) not enough information
15	Question 7 If a projectile is fired straight up at a speed of 10 m/s, the total time to return to its starting point is about A) 1 second. B) 2 seconds. C) 10 seconds. D) 20 seconds. E) not enough information
16	Question 8 When a basketball player jumps to make a shot, once the feet are off the floor, the jumper’s acceleration A) depends on launch speed. B) varies with body orientation. C) is usually greater for taller players (but not always). D) depends on all the above E) is g; no more, no less.
17	Question 8 When a basketball player jumps to make a shot, once the feet are off the floor, the jumper’s acceleration A) depends on launch speed. B) varies with body orientation. C) is usually greater for taller players (but not always). D) depends on all the above E) is g; no more, no less.
18	Question 9 An object is observed to start from rest and accelerate at a rate of 2 m/s/s. Which set of speeds, observed each second, would result from this motion? A) 0,1,2,3,4,5 B) 0,2,2,2,2,2 C) 0,2,4,6,8,10 D) 0,2,4,8,16,32
19	Question 9 An object is observed to start from rest and accelerate at a rate of 2 m/s/s. Which set of speeds, observed each second, would result from this motion? A) 0,1,2,3,4,5 B) 0,2,2,2,2,2 C) 0,2,4,6,8,10 D) 0,2,4,8,16,32
20	Question 10 Which of the following variables does not affect the measured speed of a ball rolling down a ramp? A) angle of incline of the ramp B) time C) mass of the ball D) acceleration of the ball E) none of these
21	Question 10 Which of the following variables does not affect the measured speed of a ball rolling down a ramp? A) angle of incline of the ramp B) time C) mass of the ball D) acceleration of the ball E) none of these
22	Question 11 A ball rolls down a long ramp, a student measures that during the first second of travel the ball is 10 cm from it's starting point. After two seconds how far will the ball be from its starting point? A) 15 cm B) 20 cm C) 30 cm D) 40 cm
23	Question 11 A ball rolls down a long ramp, a student measures that during the first second of travel the ball is 10 cm from it's starting point. After two seconds how far will the ball be from its starting point? A) 15 cm B) 20 cm C) 30 cm D) 40 cm
24	Question 12 You are driving along Schaumburg road when the traffic light in front of you turns red so you come to a stop, which of the following are negative while you are stopping? A) distance traveled B) acceleration C) velocity D) speed
25	Question 12 You are driving along Schaumburg road when the traffic light in front of you turns red so you come to a stop, which of the following are negative while you are stopping? A) distance traveled B) acceleration C) velocity D) speed
26	Question 13 The slope of a velocity vs. time graph tells you A) maximum velocity B) acceleration C) distance traveled D) where you are
27	Question 13 The slope of a velocity vs. time graph tells you A) maximum velocity B) acceleration C) distance traveled D) where you are
28	Question 14 A ball rolls down a ramp from rest, which of the following in NOT true? A) the ball’s acceleration is constant B) the ball will cover the same distance each second C) the ball’s speed increases D) the ball’s position depends on the square of the time
29	Question 14 A ball rolls down a ramp from rest, which of the following in NOT true? A) the ball’s acceleration is constant B) the ball will cover the same distance each second C) the ball’s speed increases D) the ball’s position depends on the square of the time
30	Question 15 The following data is recorded for a car driving down Schaumburg Road.
31	Question 15a The average velocity in the last 60 seconds is: V ave = displacement/time v ave = (800-400)/60 = 6.67 m/s
32	Question 15b The average velocity for the entire trip is v ave = displacement / time = (800-0)/120 = 6.67 m/s
33	Question 15c When did the car positively accelerate? Between 60 and 90 seconds, the displacement (800 m) was larger than between 0 and 30 seconds (200 m) and 30 and 60 seconds (200 m). Therefore that is when the car picked up speed, or positively accelerated.
34	Question 15d When did the car negatively accelerate? Between 60-90 seconds, the car displaced +800 m. Between 90-120 seconds, the car displaced -400 m. This means the car came to a stop and started in reverse. Therefore, some negative acceleration occurred in that time period.
35	The End Best of luck with your studying!