SAT Physics

SIMULATED PHYSICS ACHIEVEMENT TEST (SAT II)Test # 1

Copyright 1992, 1997 by Edwin R. SchweberExclusively distributed by physicsweb.com

http://www.physicsweb.com

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Simulated Physics Achievement Test # 1 Page 1

Copyright 1992, 1997 by Edwin R. Schweber For related internet resources: http://www.physicsweb.com

1. What is the magnitude of the acceleration of a 3 kg object when a net force of 12 newtons acts on it?(A) 12 m/s2

(B) 3.0 m/s2

(C) 36 m/s2

(D) 4.0 m/s2

(E) 0.25 m/s2

2. Which picture below shows the proper way a battery, a resistor, a voltmeter and an ammeter should be wiredtogether in order to experimentally determine the resistance of the resistor?

A V

A V

A

V

<A> <C>

<D> <E>

A

V

V

A

3. An astronaut whose mass is 50 kilograms on the surface of the Earth discovers that her mass is also 50kilograms on the surface of planet X. What is the acceleration due to gravity on the surface of planet X?(A) 480 m/s2

(B) 50 m/s2

(C) 5.1 m/s2.(D) 1.0 m/s2

(E) It cannot be determined based on the given information

4. A girl standing 2 meters in front of a plane mirror wishes to take a picture of her reflection. To what objectdistance should she set her camera lens?(A) 2 meters(B) 1 meter(C) 4 meters(D) 0.5 meters(E) 3 meters



5. You would most likely be successful in using the photoelectric effect to charge a previously unchargedelectroscope if your light source was(A) sunlight that has been passed through a red filter(B) sunlight that has been passed through a green filter(C) infrared light(D) ultraviolet light(E) a red laser beam

6. An impulse of 15 newton-seconds acts on an object that is initially at rest. What additional information, if any,would you need to be able to find the momentum of this object after the impulse has acted?(A) you have all the information you need(B) only the time interval during which the force was applied(C) only the magnitude of the applied force(D) only the mass of the object(E) both the magnitude of the applied force and the time interval during which it acted

7. The unit newton is equivalent to(A) (kg-m)/s(B) (kg-m)/s2

(C) m/s(D) kg-s(E) m-s

Questions 8 and 9 The picture below shows the electric field lines between a segment of a parallel plate capacitor that for allpractical purposes extends an infinite distance to the right and to the left. Four points P, Q, R, and S are marked offon this picture.

+ + + + + + + + + +

_ _ _ _ _ _ _ _ _ _

PQ

RS

8. At which point is the magnitude of the electric field the largest?(A) point P(B) point Q(C) point R(D) point S(E) the magnitude is the same at all four points

9. At which point is the electric potential the largest?(A) point P(B) point Q(C) point R(D) point S(E) the potential is the same at all four points



10. An object hanging from a vertical spring is vibrating in simple harmonic motion with a period of 1.2 seconds.If the mass is at its maximum displacement above the equilibrium position, how much time must elapse beforeit is next at its maximum displacement below the equilibrium position?(A) 2.4 seconds(B) 0.60 seconds(C) 0.30 seconds(D) 1.2 seconds(E) 0.90 seconds

11. What is the magnitude of the momentum of a 3.0 kilogram object moving with a speed of 12 m/s?(A) 4 m/kg-s(B) 36 (kg-m)/s(C) 430 kg-m2/s2

(D) 220 kg-m2/s2

(E) 0.25 (kg-s)/m

12. Which of the following cannot be polarized?(A) sunlight(B) laser light(C) a transverse wave on a string(D) radio waves(E) sound

13. How much work is required to move a 3 coulomb charge through a potential difference of 15 volts?(A) 5 joules(B) 15 joules(C) 45 joules(D) 135 joules(E) 0.33 joules

Questions 14 to 18 Select the answer that best completes the word analogy. Note that the analogies in questions 17 and 18 beginthe same way, but have different choices.

14. electric field : electric potential ::(A) mass : charge(B) force : potential energy(C) electric currents : resistance(D) potential energy : power(E) electric current : power

15. acceleration : velocity(A) distance : displacement(B) displacement : velocity(C) velocity : displacement(D) displacement : acceleration(E) work : energy

16. watts : horsepower::(A) kilograms : newtons(B) velocity : acceleration(C) weight : force(D) velocity : speed(E) centimeters : inches



17. impulse : work ::(A) force : acceleration(B) time : distance(C) kinetic energy : potential energy(D) velocity : speed(E) conservative forces : non-conservative forces

18. impulse : work(A) force : velocity(B) Newton's second law : Newton's third law(C) momentum : kinetic energy(D) work : power(E) mechanical energy : heat energy

19. Which of the following is NOT a vector quantity?(A) momentum(B) acceleration(C) force(D) kinetic energy(E) impulse

20. The power consumption of an electric motor is 50 watts. How much total energy is required to operate thismotor for two minutes?(A) 50 joules(B) 0.04 joules(C) 100 joules(D) 1.2 joules(E) 6.0 x 103 joules

Question 21

21. The picture above shows a 100 Newton box attached by a string over a massless, frictionless pulley to anotherbox of weight W. If the tension in the connecting string is 120 newtons and the pulley can rotate freely, whichof the following statements about W must be correct?(A) W < 100 newtons(B) W > 120 newtons(C) W = 100 newtons(D) W = 120 newtons(E) 100 newtons < W < 120 newtons

100 N

W



22. Imagine that we define the following new units:

The jubjub temperature scale, where the freezing point of water is 25 degreesjubjub and the boiling point of water is 75 degrees jubjub

A unit of heat, the brillig, where one brillig is the amount of heat that must beadded to one gram of water to raise its temperature by one degree jubjub.

What will the specific heat capacity of water be in terms of these new units?

(A) 1 brillig per gram per degree jubjub(B) 25 brilligs per gram per degree jubjub(C) 75 brilligs per gram per degree jubjub(D) 50 brilligs per gram per degree jubjub(E) 0.02 brilligs per gram per degree jubjub

23. For which optical device(s) on the list below will the size of the image formed of a real object always besmaller than the size of that object?

I. a plane mirrorII. a convex lensIII. a concave lens

(A) III only(B) I and II, only(C) II and III only(D) II only(E) none of these

24. A 20-Newton horizontal force is acting to the right on a 5-kg object which is on a horizontal surface; but theobject’s acceleration is only 3 m/s2 to the right. Which of the statements below could best explain this?(A) there is no friction(B) there is a 5 Newton frictional force acting horizontally to the right(C) there is a 5 Newton frictional force acting horizontally to the left(D) this is happening on a planet where the acceleration due to gravity is greater than it is on Earth(E) this is happening in outer space where there is no gravity

25. A physics teacher gives the following example: A student standing on the side of a highway notices that thecars are approaching her at equal time intervals but that when she walks towards the oncoming traffic the timeintervals between the cars decreases. Which of the following is the teacher most likely trying to explain?(A) the relationship between frequency, period and wave speed(B) that the pitch of a siren is higher when you are approaching it than when you are stationary.(C) that the pitch of a siren is lower when you are approaching it than when you are stationary(D) that the volume of a siren gets progressively louder as you approach it.(E) that the volume of a siren gets progressively lower as you approach it.



A

B

C

D

26. The picture above shows a ball tied to a mass which is being whirled in a vertical circle at a constant speed onthe surface of the Earth. At which of the four labeled points on the circle would the tension in the string be thelargest?(A) point A(B) point B(C) point C(D) point D(E) the tension would be the same at all four points

Question 27

R RR

R R1 2

3

4 5

27. In the circuit shown above each of the five resistors has the same resistance. Which resistor will have thegreatest potential difference across it?(A) R1

(B) R2

(C) R3

(D) R4

(E) R5

28. A certain light bulb is rated to draw electrical energy at the rate of 100 watts when it is wired across a potentialdifference of 120 volts. At what rate would the bulb draw energy if it were instead wired across a potentialdifference of only 60 volts? Neglect any effect that the different temperatures in the different situations mayhave.(A) 100 watts(B) 200 watts(C) 400 watts(D) 50 watts(E) 25 watts

29. The gravitational force between two spherical masses is 8.0 x 10-11 newtons when their centers are separated by3.0 meters. What would the force be if their centers were separated by 6.0 meters?(A) 8.0 x 10-11 newtons(B) 16 x 10-11 newtons(C) 4.0 x 10-11 newtons(D) 2.0 x 10-11 newtons(E) 1.0 x 10-11 newtons



30. You are told that both a 3-newton horizontal force and a 4-newton horizontal force are acting on an object, butyou are not told their directions. Based only on this information what is the possible range for the magnitude Fof the net force acting on the object?(A) 43 ≤≤ F(B) 41 ≤≤ F(C) 53 ≤≤ F(D) 54 ≤≤ F(E) 71 ≤≤ F

Question 31

31. The picture above shows an electric circuit with a radio, five switches, three resistors and a battery. All five ofthe switches are open so that no current can flow through them. What is the least number of switches that mustbe closed for there to be a current through the radio?(A) one switch(B) two switches(C) three switches(D) four switches(E) five switches

32. A teacher has two long combs whose teeth are separated by very slightly different amounts. She lines up onecomb directly behind the other and shows that as you look along the combs in some places a tooth of one combis directly behind a tooth of the other comb and that in other places the tooth of one comb is behind a space inthe other comb. The teacher is most likely trying to explain(A) beats(B) Doppler shift(C) Huygen's principle(D) refraction(E) diffraction

33. A 60-kg and a 30-kg ice skater face each other on a frictionless ice pond. They are initially at rest and thenpush off against each other. If the 60-kg skater has a final speed of 4 m/s, what would the speed of the 30-kgskater be?(A) 4 m/s(B) 2 m/s(C) 8 m/s(D) 1 m/s(E) 16 m/s

Radio



3

36

ΩΩ

ΩΩΩΩ

34. In the circuit above consisting of a battery and three resistors a current I flows through the battery. If thecombination of the three individual resistors were to be replaced by a single resistor, what resistance must thatsingle resistor have so that the same current I will still flow through the battery?(A) 12 ohms(B) 7.5 ohms(C) 1.2 ohms(D) 3 ohms(E) 6 ohms

35. A hammer and a feather simultaneously dropped near the surface of the Earth will not keep up with each otheras they fall. However, if this experiment were to be performed on the surface of the Moon, the hammer and thefeather would keep up with each other. This is best explained by the fact that(A) the air on the Moon is much denser than it is on the Earth(B) there is no air on the Moon(C) the Moon has no gravity(D) the Moon has gravity, but it is much weaker than on the Earth(E) the gravity on the Moon is much stronger than it is on the Earth

36. A 10 kg. satellite requires a speed of 8,000 m/s to stay in a circular orbit at a certain height above the Earth.What speed would be required to keep a 5 kg. satellite in the same orbit?(A) 2,000 m/s(B) 4,000 m/s(C) 8,000 m/s(D) 16,000 m/s(E) 32,000 m/s

37. A book is at rest on a table. What is the Newton’s third law reaction force to the weight of the book?(A) the upward force of the table on the book(B) the downward force of the book on the table(C) the downward pull of the Earth on the book(D) the upward pull of the book on the Earth(E) the friction between the table and the book



Question 38

t t t t t t1 2 1 2 12time time time

acce

l.

acce

l.

acce

l.

I II III

38. An object is travelling in the positive direction along a straight line path at time t1. Each of the three graphsabove shows possible ways the acceleration of this object could change between time t1 and time t2. For whichgraph(s) will the object's speed be increasing throughout the entire time interval from t1 to t2?(A) graph I only(B) graph II only(C) graph III only(D) graphs I and II only(E) graphs I, II and III

39. An 25 year old astronaut is blasting off for a lengthy high speed voyage while her identical twin remains onEarth. Which of the following will most likely be the situation when the astronaut returns to the Earth?(A) both twins will be 70 years old(B) the astronaut will be 25 years old and her twin will be 50 years old(C) both twins will be 30 years old while everyone else on Earth has aged by 10 years(D) the earthbound twin will be 25 years old while her astronaut sister is 50 years old(E) both twins will be 35 years old while everyone else on the Earth has aged by only 5 years

Question 40

electron

40. The picture above shows the path of a moving electron. Which of the following could be a reason why theelectron is following this specific path rather than moving in a straight line?(A) there is a magnetic field pointing perpendicularly into the page(B) there is an electric field pointing perpendicularly into the page(C) there is an electric field pointing towards the left(D) there is a magnetic field pointing perpendicularly out of the page(E) there is an electric field pointing perpendicularly out of the page



41. Which optical device(s) on the list below will always form a virtual image of a real object regardless of how farthe object is away from the device?

I. plane mirrorII. convex lensIII. concave lens

(A) I and III, only(B) I, II, and III(C) none of them(D) II and III, only(E) I and II, only

42. Which of the following would have the greatest effect on the period of a simple pendulum made by tying aspherical object to one end of a string?(A) moving the pendulum from a laboratory table to the floor(B) changing the maximum angle through which the pendulum swings with respect to the vertical from

5 degrees to 7 degrees(C) changing the length of the string from 10 cm. to 20 cm.(D) changing the mass of the spherical object from 100 grams to 200 grams(E) changing the spherical object from 100 grams of iron to 100 grams of lead

43. When monochromatic light is passed through a double slit diffraction grating with a screen behind it, the firstorder maximum on the screen will be at a point where the difference in the distance from that point to each slitis equal to(A) one-quarter of the wavelength of the light(B) one-half of the wavelength of the light(C) one wavelength of the light(D) two wavelengths of the light(E) four wavelengths of the light

44. A renegade elephant escapes from a circus into an elevator where it starts pushing the buttons at random withits trunk. The elephant's weight is only slightly less than the maximum tension the elevator's cable canwithstand without breaking. In which of the following situations will there be the greatest risk that the cablewill break?(A) the elevator remains stationary(B) the elevator accelerates upward(C) the elevator accelerates downward(D) the elevator moves upward at a steady speed(E) the elevator moves downward at a steady speed

45. An unoccupied sled is sliding towards a boy on a horizontal, frictionless ice pond. The sled has a mass of10 kg. and a speed of 6 m/s. The boy is just able to stop the sled by throwing a 2 kg. rock at it. With whatmomentum will the boy recoil?(A) you need to know the speed of the rock to answer this question(B) 12 (kg-m)/s(C) 60 (kg-m)/s(D) 30 (kg-m)/s(E) 20 (kg-m)/s



46. A kicked football follows a parabolic path until it once again hits the ground. Which of the followingstatements about the football over the course of its trajectory is (are) true?

I. The vertical component of the football’s velocity is zero at the highest point of its trajectoryII. The kinetic energy of the football is zero at the highest point of its trajectory.III. The sum of the kinetic and potential energy of the football is the same everywhere along its trajectory

(A) I and II only(B) II and III only(C) I and III only(D) I only(E) I, II and III

47. You wish to design an ammeter and a voltmeter so that when they are properly wired into a circuit they willhave the least effect on the properties of the circuit being tested. What needs to be true about the resistance ofthe voltmeter and the ammeter?(A) neither resistance will have an effect on the circuit(B) both the voltmeter and the ammeter should have a low resistance(C) both the voltmeter and the ammeter should have a high resistance(D) the ammeter should have a high resistance and the voltmeter should have a low resistance(E) the ammeter should have a low resistance and the voltmeter should have a high resistance

Question 48

Alp

ha

Bet

a

Gam

ma

Del

ta

Eps

ilon

48. The cities of Alpha, Beta, Gamma Delta, and Epsilon all lie along a straight East-West road as shown on themap above. An airplane is flying at a constant velocity due East directly over this road. When the plane isdirectly over Beta, a screw falls off. The plane continues to fly due East at the same constant velocity that it hadbeen maintaining. The plane itself is directly over Delta when the screw hits the ground. Neglecting airfriction, the screw will land closest to the city of(A) Alpha(B) Beta(C) Gamma(D) Delta(E) Epsilon



Questions 49 to 51 Base your answers to questions 49 to 51 on the graph below. The graph shows the velocity as a function of timefor an object that was originally at rest until at time t = 0 seconds it began to move in the positive direction along astraight line path.

3 6

9 1210

0-5

-10

time (s)

velo

city

(m

/s)

49. At what time after t = 0 seconds will the object first return to its position at t = 0 seconds?(A) 3 seconds(B) 6 seconds(C) 9 seconds(D) 12 seconds(E) sometime after 12 seconds

50. At what time after t = 0 seconds does the object first begin to reduce its speed?(A) 0 seconds(B) 3 seconds(C) 6 seconds(D) 9 seconds(E) 12 seconds

51. At what time after t = 0 seconds does the object first begin to travel southward?(A) 3 seconds(B) 6 seconds(C) 9 seconds(D) 12 seconds(E) the object never travels southward during the time interval shown



52. Each of the pictures below shows four objects tied together with rubber bands being pulled to the right across ahorizontal frictionless surface by a horizontal force F. All the objects have the same mass; all rubber bands obeyHooke's law, have the same equilibrium length, and the same force constant. Which of these pictures is drawnmost correctly

F

F

F

F

F



<C>

<D>

<E>

<A>

Question 53

4 -12µµ µµC C

I II III

53. The picture above shows a positive and a negative electric charge and a line drawn through these charges. Thisline is divided into three segments. In which segment(s) would it be possible to find a point where a thirdpositive charge could be placed without this third charge experiencing a net force due to the first two charges?

(A) segment I, only (B) segments I and III, only (C) segments I, II and III (D) segment II, only (E) segment III only



Question 54

100 g 100 g100 0o o

54. The picture above shows two well insulated cups, each filled with 100 grams of water, and an un-insulatedU-shaped metal bar that extends between them. The water in one cup is at an initial temperature of 100 oC andthe water in the other cup is at an initial temperature of 0 oC. Heat flows through the metal bar until the waterin each cup reaches the same equilibrium temperature. If some, but not all, of the heat flowing through the barescapes into the surrounding air, whose temperature is 25 oC, which of the following would most likely be thetemperature of the water in each cup when the temperatures first become the same?(A) 10 oC(B) 25 oC(C) 40 oC(D) 50 oC(E) 75 oC

55. A teacher places two small loudspeakers about 50 centimeters apart on a desk in front of his classroom. Eachspeaker is emitting sound with the same frequency and with the same intensity. The students are asked toslowly walk past the desk. As they do so, they hear alternate soft and loud sounds. This is best explained by(A) refraction(B) diffraction(C) reflection(D) wave interference(E) polarization



Question 56

time

tem

pera

ture

The graph at the right shows temperature versus time of a certain substance which was originally a solid as heatwas added to it a constant rate until it became a liquid and eventually a vapor. Since the graph does not have anumerical scale it is impossible to obtain numerical answers from it. However, given the overall shape of thegraph only one of the lines in the chart below could possibly be correct. Which line is it?

Sp. Heat SpHeat Sp.Heat LatentHeat Latent Heartsolid liquid gas of fusion of vaporization

(cal/g-oC) (cal/g-oC) (cal/g-oC) (cal./g) (cal./g)

(A) 0.7 0.7 0.7 40 40 (B) 0.8 0.4 0.2 70 35 (C) 0.5 1.0 0.5 80 540 (D) 0.2 0.4 0.8 70 35 (E) 0.2 0.4 0.8 35 70



57. The picture below shows a track which is part of a vertical circle. If a ball is released from rest at the left end ofthe track, which of the dotted lines best shows the trajectory that it would follow after it leaves the right end ofthe track?

<A>

<D><E>

<C>

58. Each of the pictures below shows two parallel current carrying wires. The arrows show the direction of theconventional current. For which picture(s) will the magnetic field be pointing perpendicularly into the page atevery point between the wires?

I II III(A) pictures I, II, and III(B) picture II, only(C) picture III, only(D) pictures II and III, only(E) picture I, only



Questions 59 to 61 An interplanetary exchange student studying at an Earthling high school has been given a physics problemasking about the height at which a soccer ball hits a wall downfield from where the ball was kicked. The exchangestudent’s answer, given below, is almost perfectly correct except that she has mistakenly used the value for theacceleration of gravity on her native planet rather than the value on Earth and that she has omitted the units insome of her steps.

Vy = 10 sin 30o = 5

Vx = 10 cos 30o = 8.7

7 = 8.7tt = 0.8

y = 5(0.8) - (1/2)(6)(0.8)2 = 2.1 meters

59. Based on this solution, what was the speed of the ball immediately after it was kicked?(A) 10 m/s(B) 5 m/s(C) 8.7 m/s(D) 13.7 m/s(E) 6 m/s

60. Based on this solution, what was the horizontal distance between the kicker and the wall?(A) 10 meters(B) 6 meters(C) 0.8 meters(D) 7 meters(E) 8.7 meters

61. Based on this solution, what is the acceleration due to gravity on the surface of the student’s native planet?Remember that the student mistakenly used this value rather than the value here on Earth.(A) 9.8 m/s2

(B) 3 m/s2

(C) 6 m/s2

(D) 7 m/s2

(E) 8.7 m/s2



62. One of the three graphs below shows displacement versus time for a certain object, another shows velocityversus time for that same object and the third shows acceleration versus time for that object.

I II III

Which line in the chart below correctly indicates which graph is which?

Disp. vs. Time Vel. vs. Time Accel. vs. Time

(A) graph III graph II graph I(B) graph II graph I graph II(C) graph I graph II graph III(D) graph II graph III graph I(E) graph III graph I graph II

Question 63

`

tim

er

tape

63. The picture above shows the setup for an experiment. The cart on the left is to be rolled into a stationarycart on the right. Both carts have the same mass. There is a wad of clay at the end of the carts so that they willstick together after the collision. A thin strip of paper tape is attached to the left end of the left cart and is runthrough a device that will make a dot on the tape at regular intervals both before and after the collision.Which picture below best shows what the pattern of dots on the tape will look like after the experiment isperformed? In each picture the tape is oriented so that dots toward the left were the ones made before thecollision. Notice that vertical grid lines have been drawn to help you judge the distance between the dots.

<A>



<C>

<D>

<E>



Question 64:

Q

QQ

64. The picture above shows a perpendicular axis system and three positive charges, all with the same magnitudeQ. One charge is at the origin, one charge is on the y-axis, and one charge is on the x-axis. The two charges onthe axes are the same distance from the origin. Which picture below best shows the direction of the net forcethat would be exerted on the charge at the origin due to the other two charges?

<E> The force is zero and has no direction

<A> <C> <D>

65. A 4 kg. cart is rolling to the right with a speed of 3 m/s when a force acting to the right does 18 joules of workon it. What is the kinetic energy of the cart after this work is performed?(A) 18 joules(B) zero joules(C) 36 joules(D) 54 joules(E) 30 joules

10 20 30 40 50 60 70 90

8 N

80

66. As shown in the picture above, a uniform meter stick in rotational equilibrium is supported by a pivot at the 70centimeter mark while an 8 newton weight hangs from it at the 80 centimeter mark. What is the weight of themeter stick?(A) 8 newtons(B) 4 newtons(C) 16 newtons(D) 32 newtons(E) 2 newtons



Question 67:

<A> <C>67. The picture above shows three objects: Object A, a circular disk; object B, a square frame; and object C, a

square sheet. All three objects have the same mass and uniform densities. The dimensions indicated by anarrow in each of the pictures are the same. The moments of inertia about axes perpendicular to the planes of theobjects through their center points are IA, IB, and IC. Which choice below makes a correct comparison betweenthe three moments of inertia?

(A) IC > IA > IB

(B) IC = IB > IA

(C) IC = IA > IB

(D) IB > IC > IA

(E) IA = IB = IC

68. A record turntable is rotating freely (the motor is not running). Which of the following would be true if a smallinsect which was originally at rest with respect to the turntable on its outer edge walks halfway towards thecenter and once again comes to rest with respect to the turntable.

I. The combined kinetic energy of the turntable and the insect will increase.II. The combined angular momentum of the turntable and the insect will increase.III. The combined kinetic energy of the turntable and the insect will remain the same.IV. The combined angular momentum of the turntable and the insect will remain the same.

(A) I and IV, only(B) II and III, only(C) I and II, only(D) III and IV, only(E) III, only

69. Which of the following situations involving heat engines could not occur according to the Second Law ofThermodynamics?

I. For every 100 joules of heat that flow into the engine the engine performs 100 joules of work.II. For every 100 joules of heat that flow into the engine the engine performs 50 joules of workIII. For every 100 joules of heat that flow into the engine the engine performs 200 joules of work

(A) II, only(B) III, only(C) I, II and III(D) I and III, only(E) II and III only



70. A teacher gives her students the following test problem:

Box A which is sliding to the right along a frictionless horizontal surface collideswith box B which was initially at rest. The two boxes stick together after the collisionand continue sliding as a single unit. Find the final speed of the combined boxes.

However, rather than giving the students the necessary information, the teacher is making them purchase theinformation according to the following price list.

The change in the kinetic energy of box B as a result of the collision $5The change in the momentum of box B as a result of the collision $8The average force acting on box B during the collision $7The time that the two boxes are in contact while they are colliding $9The mass of box B $4

What is the least amount of money that must be spent in order to purchase enough information to solve theproblem?

(A) $9(B) $16(C) $12(D) $15(E) $14

71. A standing wave with a 36 centimeter wavelength is established along a horizontal string. If point P on thisstring is an antinode, what is the horizontal distance between point P and the closest node?

(A) 36 cm (B) 72 cm (C) 18 cm (D) 27 cm (E) 9 cm

72. Each of the graphs below shows the potential difference, ∆V, across an electrical device versus the current, I,that is flowing through it. Which graph represents a device for which Ohm's Law is true?

I I I I IV V V V V∆∆ ∆∆ ∆∆ ∆∆

<A> <C> <D> <E>

∆∆



73. A tuning fork vibrating at 300 Hz is held close to a second tuning fork for a brief interval before beingremoved. Following this, the second tuning fork will most likely be vibrating with the greatest amplitude if itsown natural frequency of vibration is(A) 150 Hz(B) 300 Hz(C) 310 Hz.(D) 600 Hz(E) 290 Hz

74. A transverse wave is passing through a horizontal string. The first picture below shows the shape of the stringat an instant of time. This picture is superimposed on an axis system to help you make any necessarymeasurements. The second picture below is a graph of the vertical displacement of one point along the string asa function of time

-4

-3

-2

-1

0

1

2

3

4

0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36

centimeters

cen

tim

eter

s

-4-3-2-101234

0 1 2 3 4 5 6 7 8 9

seconds

cen

tim

eter

s

How far does this wave travel along the string in one second?(A) 0.3 cm(B) 3 cm(C) 9 cm(D) 27 cm(E) 36 cm



Question 75

S N

75. The picture above shows a magnet attached to a spring and an adjacent electrical circuit consisting of a resistorconnected to a coil of wire wrapped around a hollow cardboard core. If the magnet were to be set into simpleharmonic motion with a small amplitude, which graph below best shows how the induced current in the coilwould vary as a function of time? The sign convention being followed is that positive currents are flowingthrough the resistor to the right and that negative currents are flowing through the resistor to the left.

time

time

time

time

curr

ent

curr

ent

curr

ent

curr

ent

curr

ent

<A>



<C>

<D>

<E>



SIMULATED ACHIEVEMENT TEST #1 ANSWER KEY

1) D 26) A 51) B 2) D 27) A 52) B 3) E 28) E 53) A 4) C 29) D 54) C 5) D 30) E 55) D

6) A 31) B 56) D 7) B 32) A 57) C 8) E 33) C 58) B 9) A 34) D 59) A10) B 35) B 60) D

11) B 36) C 61) C12) E 37) D 62) D13) C 38) E 63) D14) B 39) B 64) C15) C 40) D 65) C

16) E 41) A 66) B17) B 42) C 67) D18) C 43) C 68) A19) D 44) B 69) D20) E 45) C 70) A

21) B 46) C 71) E22) A 47) E 72) C23) A 48) D 73) B24) C 49) E 74) B25) B 50) B 75) C

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