Mr. Clarkston - Physics B First Semester Final Exam When? FRQs Monday December 16, 2013 MC Questions Wednesday December 18, 2013 What? Here is the topic breakdown Motion Vectors Newtons Laws Energy/Work/Power Momentum/Impulse Circular Motion and Gravity Simple Harmonic Motion Wave characteristics and behavior

Fluids LINKS for Physics Practice Quizzes (for your practice and review) 1) From Batesville HS in Illinois: http://www.batesville.k12.in.us/Physics/PhyNet/quiz_index.htm 2) From South Carolina State University: http://www.cnrt.scsu.edu/~dms/P201/FA97.html 3) From a College-level textbook (practice quizzes) http://cwx.prenhall.com/bookbind/pubbooks/giancoli/ 4) From another College-level textbook publisher http://cwx.prenhall.com/bookbind/pubbooks/wilson/

AP Physics Semester One MC Exam Review

1. An object is thrown vertically into the air. Which of the following five graphs represents the velocity (v) of the object as a function of the time (t)?

A)I. B) II. C) III. D) IV. E) V.

2. The diagram represents the straight line motion of a car. Which of the following statements is true?

A) The car accelerates, stops, and reverses D) The car decelerates at 12 m/s2 for the last 4 s B) The car accelerates at 6 m/s2 for the first 2 s E) The car returns to its starting point when t = 9 s C) The car is moving for a total time of 12 s

3. An elevator is moving upward with constant acceleration. The dashed curve shows the position y of the ceiling of the elevator as a function of the time t. At the instant indicated by the dot, a bolt breaks loose and drops from the ceiling. Which curve best represents the position of the bolt as a function of time?

A)I. B) II. C) III. D) IV. E) V.

4. Which of the five following graphs is correct for an object moving in a straight line at a constant

velocity of 20 m/s?

A)I. B) II. C) III. D) IV. E) V.

5. Displacement can be obtained from: A) the slope of an acceleration-time graph D) the area under a velocity-time graph B) the slope of a velocity-time graph E) the slope of an acceleration-time graph C) the area under an acceleration-time graph 6. An object is thrown vertically upward with a certain initial velocity in a world where the acceleration

due to gravity is19.6 m/s2. The height to which it rises is ____ that to which the object would rise if thrown upward with the same initial velocity on the Earth. Neglect friction.

A) half B) _ 2 times C) twice D) four times E) cannot be calculated from the given data 7. Two vectors lie with their tails at the same point. When the angle between them is increased by 20 the

magnitude of their vector product doubles. The original angle between them was about: A) 0 B) 18 C) 25 D) 45 E) 90

8. Two vectors lie with their tails at the same point. When the angle between them is increased by 20 their scalar product has the same magnitude but changes from positive to negative. The original angle between them was:

A) 0 B) 60 C) 70 D) 80 E) 90 9. Vectors A and B each have magnitude L. When drawn with their tails at the same point, the angle

between them is 30. The value of A B is: A) zero B) L2 C) _ 3L2/2 D) 2L2 E) none of these 10. Vectors A and B lie in the x-y plane. We can deduce that A = B if: A) Ax2 + Ay2 = Bx2 + By2 D) Ay /Ax = By /Bx B) Ax + Ay = Bx + By E) Ax = Ay and Bx = By C) Ax = Bx and Ay = By 11. Two projectiles are in flight at the same time. The acceleration of one relative to the other: A) is always 9.8 m/s2 D) is zero B) can be as large as 19.8 m/s2 E) none of these C) can be horizontal 12. A ferry boat is sailing at 12 mph 30 W of N with respect to a river that is flowing at 6.0 mph E. As

observed from the shore, the ferry boat is sailing: A) 30 E of N B) due N C) 30 W of N D) 45 E of N E) none of these 13. A stone is tied to the end of a string and is swung with constant speed around a horizontal circle with a

radius of 1.5 m. If it makes two complete revolutions each second, its acceleration is: A) 0.24 m/s2 B) 2.4 m/s2 C) 24 m/s2 D) 240 m/s2 E) 2400 m/s2 14. Two objects are traveling around different circular orbits with constant speed. They both have the same

acceleration but object A is traveling twice as fast as object B. The orbit radius for object A is _______ the orbit radius for object B.

A) one-fourth B) one-half C) the same as D) twice E) four times

15. Two blocks (X and Y) are in contact on a horizontal frictionless surface. A 36-N constant force is applied to X as shown. The force exerted by Y on X is:

A) 1.5 N B) 6.0 N C) 29 N D) 30 N E) 36 N 16. Three books (X, Y, and Z) rest on a table. The weight of each book is indicated. The force of book Z on

book Y is:

A) 0 B) 5 N C) 9 N D) 14 N E) 19 N 17. Two blocks are connected by a string and pulley as shown. Assuming that the string and pulley are

massless, the magnitude of the acceleration of each block is:

A) 0.049 m/s2 B) 0.020 m/s2 C) 0.0098 m/s2 D) 0.54 m/s2 E) 0.98 m/s2 18. A 32-N force, parallel to the incline, is required to push a certain crate at constant velocity up a

frictionless incline that is 30 above the horizontal. The mass of the crate is: A) 3.3 kg B) 3.8 kg C) 5.7 kg D) 6.5 kg E) 160 kg 19. On some roller coasters each car is suspended below the track by means of a rod that is free to swivel in

any direction. When such a car rounds a 45-m radius horizontal curve at 22 m/s (about 50 mph), what angle does the rod make with the vertical?

A) 0 B) 25 C) 42 D) 65 E) 90 20. One end of a 1.0-m string is fixed, the other end is attached to a 2.0-kg stone. The stone swings in a

vertical circle, passing the bottom point at 4.0 m/s. The string tension (in newtons) at this point is about: A) 0 B) 12 C) 20 D) 32 E) 52 21. The driver of a 1000-kg car tries to turn through a circle of radius 100 m on an unbanked curve at a

speed of 10 m/s. The actual frictional force between the tires and slippery road is 900 N. The car will: A) slide into the inside of the curve D) make the turn only if it went faster B) make the turn E) slide off to the outside of the curve C) slow down due to the frictional force

22. If a satellite moves above the Earth's atmosphere in a circular orbit with constant speed, then: A) its acceleration and velocity are in the same direction B) the net force on it is zero C) its velocity is constant D) it will fall back to Earth when its fuel is used up E) its acceleration is toward the Earth 23. Uniform circular motion is the direct consequence of: A) Newton's third law D) conservation of energy and momentum B) centrifugal force E) an acceleration always directed toward the same

point C) an acceleration tangent to the path 24. Block A, with a mass of 10 kg, rests on a 35 incline. The coefficient of static friction is 0.40. An

attached string is parallel to the incline and passes over a massless, frictionless pulley at the top. The largest mass mB, attached to the dangling end, for which A remains at rest is:

A) 2.5 kg B) 3.5 kg C) 5.9 kg D) 9.0 kg E) 10.5 kg 25. A 50-N force acts on a 2-kg crate that starts from rest. At the instant the particle has gone 2 m the rate at

which the force is doing work is: A) 2.5 W B) 25 W C) 75 W D) 100 W E) 500 W 26. A kilowatt hour is a unit of: A) power B) energy/time C) work D) power/time E) force/distance 27. A 1.5 kg crate falls from a height of 2.0 m onto an industrial spring scale with a spring constant of

1.5x105 N/m. At its greatest compression the reading on the scale is: A) 15 N B) 30 N C) 1.5x103 N D) 2.1x103 N E) 3.2x103 N 28. A 5 kg projectile is fired over level ground with a velocity of 200 m/s at an angle of 25 above the

horizontal. Just before it hits the ground its speed is 150 m/s. Over the entire trip the change in the internal energy of the projectile and air is:

A) +19,000 J B) -19,000 J C) +44,000 J D) -44,000 J E) 0

29.The first graph shows the potential energy U(x) for a particle moving on the x axis. Which of the following five graphs correctly gives the force F exerted on the particle?

A) I. B) II. C) III. D) IV. E) V. 30. A 1000-kg space probe is motionless in space. To start moving, its main

engine is fired for 5 s during which time it ejects exhaust gases at 5000 m/s. At the end of this process it is moving at 20 m/s. The approximate mass of the ejected gas is:

A) 0.8 kg B) 4 kg C) 5 kg D) 20 kg E) 25 kg 31. A cart loaded with sand slides along a horizontal frictionless track. As the cart moves, sand trickles out

at a constant rate through a hole in the back of the cart. The speed of the cart will: A) decrease at a constant rate D) decrease at a variable rate B) increase at a constant rate E) increase at a variable rate C) remain the same 32. Force: A) equals the negative integral (with respect to distance) of the potential energy function B) is the ability to do work