First Quarterly Exam Practice Questions

MORE REGENTS PRACTICE QUESTIONS

 

1.    How far will a freely falling object, initially at rest, fall in 2.4 s ?
6.0 m      12 m     23 m      28 m

2.    An object originally at rest is uniformly accelerated along a straight-line path to a speed of 8.0 m/s in 2.00 s. The acceleration of the object is
0.25 m/s2      10 m/s2     16 m/s2      4.0 m/s2

3.    To change the velocity of an object, there must be
an increase in its speed     a decrease in its speed      a change in either its speed or direction



Questions 4 through 6 : A ball is kicked at an angle of 30o from the horizontal. The ball has an initial velocity of 5.0 m/s. [Neglect friction.]

4.What is the magnitude of the horizontal component of the ball's initial velocity ?
2.5 m/s   4.3 m/s   5.0 m/s   8.7 m/s


5.As the ball rises, the vertical component of its velocity
decreases   increases   remains the same


6.If the angle between the horizontal and the direction of the 5.0 m/s velocity decreases from 30o to 20o, the horizontal distance the ball travels will
decrease   increase   remain the same




Base your answers to questions 7 through 11 on the diagram below which shows the trajectory of a projectile launched on the Earth's surface.

U11Image5.gif (5003 bytes)

7. What is the initial vertical velocity of the projectile ?
35 m/s  20 m/s  40 m/s  30 m/s

8. What is the initial horizontal velocity of the projectile ?
35 m/s  20 m/s  40 m/s  30 m/s

9. If the angle were decreased to 50o, the horizontal distance traveled by the projectile would
decrease  increase  remain the same

10. What is the horizontal velocity of the projectile at point P ?
35 m/s  20 m/s  40 m/s  30 m/s

11. What is the vertical velocity of the projectile at point P ?
35 m/s  20 m/s  40 m/s  0 m/s



 

12.    An object is accelerated uniformly from rest to a speed of 25 m/s in 10.0 s. The acceleration of the object is
1.0 m/s2      2.0 m/s2     1.5 m/s2     2.5 m/s2

13.    Starting from rest, how far can a 2.00 kg mass fall freely in 1.00 s ?
4.90 m      2.00 m     9.80 m     19.6 m

14.    As the time required to accelerate an object from rest to a speed of 4 m/s decreases, the acceleration of the object
decreases      increases      remains the same

15.    As an object falls freely near the earth, its acceleration
decreases      increases      remains the same

16.    Which of the following is a vector quantity ?
distance      speed      acceleration      mass

17.    A woman jogs 300 m north, then 400 m east. What is the displacement of the woman?
500 m      500 m northeast     700 m      700 m northeast




Base your answers to questions 18 through 23 on the speed-time graph below representing the motion of a cart.



18. The cart travels the shortest distance in interval
0-5 s 5-8 s 8-11 s 11-16 s

19. The cart’s average speed is greatest during interval
0-5 s 5-8 s 8-11 s 11-16 s

20. The cart travels the greatest distance during interval
0-5 s 5-8 s 8-11 s 11-16 s

21. The magnitude of the cart’s acceleration is greatest during interval
0-5 s 5-8 s 8-11 s 11-16 s

22. During how many intervals is the cart’s acceleration equal to zero ?
1 2 3 4

23. What is the distance traveled by the object during the time interval 8 to 11 seconds ?
30 m 60 m 90 m 180 m




24.    What is the average speed of a car that travels 1200 m in 20. s ?
20 m/s      60 m/s     120 m/s     0.017 m/s

25.    A cart initially traveling at 10. m/s north accelerates uniformly at 3.0 m/s2 to the north for 4.0 s. The displacement
of the cart during the 4.0 s from its initial position is
40. m north      64 m north     88 m north     180 m north

26.    An object initially traveling at 20. m/s south decelerates uniformly at 6.0 m/s2 and is displaced 25 m. What is the
final velocity of the object ?
26 m/s north      26 m/s south     10 m/s north     10 m/s south

27.    Which is constant for a freely falling object ?
acceleration      velocity     speed     displacement

28.    In an experiment that measures how fast a student reacts, a meter stick dropped from rest falls 0.20 m before the
student catches it. The reaction time of the student is approximately
0.10 s      0.20 s     0.30 s      0.40 s

29.    The width of your little finger is closest to
1 m      0.1 m     0.01 m      0.001 m

30.    Which of the following statements is true ?
The velocity of a projectile at its maximum height is zero.     
The acceleration of a projectile at its maximum height is zero.    
The horizontal velocity of a projectile at its maximum height is zero.     
The vertical velocity of a projectile at its maximum height is zero.

31.    If an object is traveling east with decreasing speed, the direction of the object's acceleration is
north      south     east      west

32.   A roller coaster, traveling with an initial speed of 15 m/s, decelerates uniformly at -7.0 m/s2 to a full stop.
Approximately how far does the roller coaster travel during its deceleration?
1.0 m      2.0 m     16 m      32 m