Question 1

In simple harmonic motion,the speed is greatest at that point in the cycle when

Accepted Answer

A)  the magnitude of the acceleration is a maximum. 
B)  the displacement is a maximum. 
C)  the magnitude of the acceleration is a minimum. 
D)  the potential energy is a maximum. 
E)  the kinetic energy is a minimum. 
A)  the magnitude of the acceleration is a maximum. 
B)  the displacement is a maximum. 
C)  the magnitude of the acceleration is a minimum. 
D)  the potential energy is a maximum. 
E)  the kinetic energy is a minimum.

Question 2

Which one of the following statements is true?

Accepted Answer

A)  Both the intensity level (in d
B)  and the sound intensity can never be negative. 
B)  The intensity level (in d
B)  obeys an inverse-square distance law, but the sound intensity does not. 
C)  Both intensity level (in d
B)  and sound intensity obey inverse-square distance laws. 
D)  The sound intensity can never be negative, but the intensity level (in d
B)  can be negative. 
E)  Both the intensity level (in d
B)  and the sound intensity can be negative. 
A)  Both the intensity level (in d
B)  and the sound intensity can never be negative. 
B)  The intensity level (in d
B)  obeys an inverse-square distance law, but the sound intensity does not. 
C)  Both intensity level (in d
B)  and sound intensity obey inverse-square distance laws. 
D)  The sound intensity can never be negative, but the intensity level (in d
B)  can be negative. 
E)  Both the intensity level (in d
B)  and the sound intensity can be negative.

Question 3

A baseball is thrown vertically upward and feels no air resistance.As it is rising

Accepted Answer

A)  both its momentum and its mechanical energy are conserved. 
B)  its momentum is not conserved, but its mechanical energy is conserved. 
C)  both its momentum and its kinetic energy are conserved. 
D)  its kinetic energy is conserved, but its momentum is not conserved. 
E)  its gravitational potential energy is not conserved, buts its momentum is conserved. 
A)  both its momentum and its mechanical energy are conserved. 
B)  its momentum is not conserved, but its mechanical energy is conserved. 
C)  both its momentum and its kinetic energy are conserved. 
D)  its kinetic energy is conserved, but its momentum is not conserved. 
E)  its gravitational potential energy is not conserved, buts its momentum is conserved.

Question 4

Four traveling waves are described by the following equations,where all quantities are measured in SI units and y represents the displacement.
I: y = 0.12 cos(3x + 2t)
II: y = 0.15 sin(6x - 3t)
III: y = 0.23 cos(3x + 6t)
IV: y = -0.29 sin(1.5x - t)
Which of these waves have the same speed?

Accepted Answer

A)  I and III 
B)  I and IV 
C)  II and III 
D)  I and II 
E)  III and IV 
A)  I and III 
B)  I and IV 
C)  II and III 
D)  I and II 
E)  III and IV

Question 5

A charge of 1.0 × 10-6 μC is located inside a sphere,1.25 cm from its center.What is the electric flux through the sphere due to this charge? (ε0 = 8.85 × 10-12 C2/N • m2)

Accepted Answer

A)  0.11 N • m2/C 
B)  8.9 N • m2/C 
C)  0.028π N • m2/C 
D)  It cannot be determined without knowing the radius of the sphere. 
A)  0.11 N • m2/C 
B)  8.9 N • m2/C 
C)  0.028π N • m2/C 
D)  It cannot be determined without knowing the radius of the sphere.

Question 6

A relativistic proton has a momentum of 1.0 × 10-17 kg ∙ m/s and a rest energy of 0.15 nJ.What is the kinetic energy of this proton? (c = 3.00 × 108 m/s,mproton = 1.67 × 10-27 kg)

Accepted Answer

A)  1.3 pJ 
B)  1.6 pJ 
C)  3.0 pJ 
D)  2.2 pJ 
E)  2.5 pJ 
A)  1.3 pJ 
B)  1.6 pJ 
C)  3.0 pJ 
D)  2.2 pJ 
E)  2.5 pJ

Question 7

A force on a particle depends on position such that F(x)= (3.00 N/m2)x2 + (6.00 N/m)x for a particle constrained to move along the x-axis. What work is done by this force on a particle that moves from x = 0.00 m to x = 2.00 m?

Accepted Answer

A)  10.0 J 
B)  20.0 J 
C)  -48.0 J 
D)  24.0 J 
E)  48.0 J 
A)  10.0 J 
B)  20.0 J 
C)  -48.0 J 
D)  24.0 J 
E)  48.0 J

Question 8

An engine manufacturer makes the claim that the engine they have developed will,on each cycle,take 100 J of heat out of boiling water at 100°C,do mechanical work of 80 J,and exhaust 20 J of heat at 10°C.What,if anything,is wrong with this claim?

Accepted Answer

A)  The heat exhausted must always be greater than the work done according to the second law of thermodynamics. 
B)  This engine violates the first law of thermodynamics because 100 J + 20 J ≠ 80 J. 
C)  An engine would operate by taking in heat at the lower temperature and exhausting heat at the higher temperature. 
D)  The efficiency of this engine is greater than the ideal Carnot cycle efficiency. 
E)  There is nothing wrong with this claim because 100 J = 20 J + 80 J. 
A)  The heat exhausted must always be greater than the work done according to the second law of thermodynamics. 
B)  This engine violates the first law of thermodynamics because 100 J + 20 J ≠ 80 J. 
C)  An engine would operate by taking in heat at the lower temperature and exhausting heat at the higher temperature. 
D)  The efficiency of this engine is greater than the ideal Carnot cycle efficiency. 
E)  There is nothing wrong with this claim because 100 J = 20 J + 80 J.

Question 9

What is 56 + (32.00)/(1.2465 + 3.45)written with the correct number of significant figures?

Accepted Answer

A)  62.8 
B)  62.812 
C)  62.81 
D)  63 
E)  62.8123846 
A)  62.8 
B)  62.812 
C)  62.81 
D)  63 
E)  62.8123846

Question 10

A wire in the shape of an "M" lies in the plane of the paper.It carries a current of 2.0 A,flowing from points A to E,as shown in the figure.It is placed in a uniform magnetic field of 0.75 T in the same plane,directed as shown on the right side of the figure.The figure indicates the dimensions of the wire.What are the magnitude and direction of the force acting on   
(a)section AB of this wire?
(b)section BC of this wire?
(c)section CD of this wire?
(d)section DE of this wire?
(e)the entire wire?

Accepted Answer

(a)0.11 N perpendicular out of

Question 11

A spring stretches by 21.0 cm when a 135 N object is attached.What is the weight of a fish that would stretch the spring by 31.0 cm?

Accepted Answer

A)  199 N 
B)  91.0 N 
C)  145 N 
D)  279 N 
A)  199 N 
B)  91.0 N 
C)  145 N 
D)  279 N

Question 12

An LRC ac circuit has a reactance (due to its capacitance)of 17 kΩ,a reactance (due to its inductance)of 9.0 kΩ,and a resistance of 28 kΩ.What is the power factor of the circuit?

Accepted Answer

A)  0.96 
B)  0.28 
C)  1.04 
D)  0.48 
A)  0.96 
B)  0.28 
C)  1.04 
D)  0.48

Question 13

Convert 1.2 × 10-3 to decimal notation.

Accepted Answer

A)  1.200 
B)  0.1200 
C)  0.0120 
D)  0.0012 
E)  0.00012 
A)  1.200 
B)  0.1200 
C)  0.0120 
D)  0.0012 
E)  0.00012

Question 14

A solenoid of length 18 cm consists of closely spaced coils of wire wrapped tightly around a wooden core.The magnetic field strength is 2.0 mT inside the solenoid near its center when a certain current flows through the coils.If the coils of the solenoid are now pulled apart slightly,stretching it to 21 cm without appreciably changing the size of the coils,what does the magnetic field become near the center of the solenoid when the same current flows through the coils? (μ0 = 4π × 10-7 T • m/A)

Accepted Answer

A)  1.7 mT 
B)  3.4 mT 
C)  0.85 mT 
D)  2.0 mT 
A)  1.7 mT 
B)  3.4 mT 
C)  0.85 mT 
D)  2.0 mT

Question 15

The figure shows the position of an object (moving along a straight line)as a function of time.Assume two significant figures in each number.Which of the following statements about this object is true over the interval shown?

Accepted Answer

A)  The object is accelerating to the left. 
B)  The object is accelerating to the right. 
C)  The acceleration of the object is in the same direction as its velocity. 
D)  The average speed of the object is 1.0 m/s. 
A)  The object is accelerating to the left. 
B)  The object is accelerating to the right. 
C)  The acceleration of the object is in the same direction as its velocity. 
D)  The average speed of the object is 1.0 m/s.

Question 16

A plot of land contains 5.8 acres. How many square meters does it contain? [1 acre = 43,560 ft2]

Accepted Answer

A)  2.3 × 104 m2 
B)  7.1 × 103 m2 
C)  7.0 × 104 m2 
D)  5.0 × 104 m2 
A)  2.3 × 104 m2 
B)  7.1 × 103 m2 
C)  7.0 × 104 m2 
D)  5.0 × 104 m2

Question 17

During each cycle of operation,a refrigerator absorbs 230 J of heat from the freezer and expels 356 J of heat to the room. How much work input is required in each cycle?

Accepted Answer

A)  712 J 
B)  586 J 
C)  460 J 
D)  310 J 
E)  126 J 
A)  712 J 
B)  586 J 
C)  460 J 
D)  310 J 
E)  126 J

Question 18

A 60.0-kg person drops from rest a distance of 1.20 m to a platform of negligible mass supported by an ideal stiff spring of negligible mass.The platform drops 6.00 cm before the person comes to rest.What is the spring constant of the spring?

Accepted Answer

A)  2.56 × 105 N/m 
B)  3.92 × 105 N/m 
C)  5.45 × 104 N/m 
D)  4.12 × 105 N/m 
E)  8.83 × 104 N/m 
A)  2.56 × 105 N/m 
B)  3.92 × 105 N/m 
C)  5.45 × 104 N/m 
D)  4.12 × 105 N/m 
E)  8.83 × 104 N/m

Question 19

What is   to the proper number of significant figures?

Accepted Answer

A)  0.91 
B)  0.911 
C)  0.9108 
D)  0.9 
A)  0.91 
B)  0.911 
C)  0.9108 
D)  0.9

Question 20

Alpha particles (charge = +2e,mass = 6.68 × 10-27 kg,e = 1.60 × 10-19C)0.87 μs.

Accepted Answer

A)  0.44 μs. 
B)  0.67 μs. 
C)  are accelerated in a cyclotron to a final orbit radius of 0.90 m. The magnetic field in the cyclotron is 0.30 T. The period of the circular motion of the alpha particles is closest to 
D)  1.1 μs. 
A)  0.44 μs. 
B)  0.67 μs. 
C)  are accelerated in a cyclotron to a final orbit radius of 0.90 m. The magnetic field in the cyclotron is 0.30 T. The period of the circular motion of the alpha particles is closest to 
D)  1.1 μs.

Exam 1: A: Foundations

In simple harmonic motion,the speed is greatest at that point in the cycle when

Which one of the following statements is true?

A baseball is thrown vertically upward and feels no air resistance.As it is rising

Four traveling waves are described by the following equations,where all quantities are measured in SI units and y represents the displacement. I: y = 0.12 cos(3x + 2t) II: y = 0.15 sin(6x - 3t) III: y = 0.23 cos(3x + 6t) IV: y = -0.29 sin(1.5x - t) Which of these waves have the same speed?

A charge of 1.0 × 10-6 μC is located inside a sphere,1.25 cm from its center.What is the electric flux through the sphere due to this charge? (ε0 = 8.85 × 10-12 C2/N • m2)

A relativistic proton has a momentum of 1.0 × 10-17 kg ∙ m/s and a rest energy of 0.15 nJ.What is the kinetic energy of this proton? (c = 3.00 × 108 m/s,mproton = 1.67 × 10-27 kg)

A force on a particle depends on position such that F(x)= (3.00 N/m2)x2 + (6.00 N/m)x for a particle constrained to move along the x-axis. What work is done by this force on a particle that moves from x = 0.00 m to x = 2.00 m?

An engine manufacturer makes the claim that the engine they have developed will,on each cycle,take 100 J of heat out of boiling water at 100°C,do mechanical work of 80 J,and exhaust 20 J of heat at 10°C.What,if anything,is wrong with this claim?

What is 56 + (32.00)/(1.2465 + 3.45)written with the correct number of significant figures?

A spring stretches by 21.0 cm when a 135 N object is attached.What is the weight of a fish that would stretch the spring by 31.0 cm?

An LRC ac circuit has a reactance (due to its capacitance)of 17 kΩ,a reactance (due to its inductance)of 9.0 kΩ,and a resistance of 28 kΩ.What is the power factor of the circuit?

Convert 1.2 × 10-3 to decimal notation.

The figure shows the position of an object (moving along a straight line)as a function of time.Assume two significant figures in each number.Which of the following statements about this object is true over the interval shown?

A plot of land contains 5.8 acres. How many square meters does it contain? [1 acre = 43,560 ft2]

During each cycle of operation,a refrigerator absorbs 230 J of heat from the freezer and expels 356 J of heat to the room. How much work input is required in each cycle?

A 60.0-kg person drops from rest a distance of 1.20 m to a platform of negligible mass supported by an ideal stiff spring of negligible mass.The platform drops 6.00 cm before the person comes to rest.What is the spring constant of the spring?

What is to the proper number of significant figures?

Alpha particles (charge = +2e,mass = 6.68 × 10-27 kg,e = 1.60 × 10-19C)0.87 μs.

Foundations

Motion in One Dimension

Acceleration

Momentum

Energy

Principle of Relativity

Interactions

Force

Work

Motion in a Plane

Motion in a Circle

Torque

Gravity

Special Relativity

Periodic Motion

Waves in One Dimension

Waves in Two and Three Dimensions

Fluids

Entropy

Energy Transferred Thermally

Degradation of Energy

Electric Interactions

The Electric Field

Gausss Law

Work and Energy in Electrostatics

Charge Separation and Storage

Magnetic Interactions

Magnetic Fields of Charged Particles in Motion

Changing Magnetic Fields

Changing Electric Fields

Electric Circuits

Electronics

Ray Optics

Wave and Particle Optics

Filters

A charge of 1.0 × 10^-6 μC is located inside a sphere,1.25 cm from its center.What is the electric flux through the sphere due to this charge? (ε₀ = 8.85 × 10^-12 C²/N • m²)

A relativistic proton has a momentum of 1.0 × 10^-17kg ∙ m/s and a rest energy of 0.15 nJ.What is the kinetic energy of this proton? (c = 3.00 × 10⁸ m/s,m_proton = 1.67 × 10^-27 kg)

A force on a particle depends on position such that F(x)= (3.00 N/m²)x² + (6.00 N/m)x for a particle constrained to move along the x-axis. What work is done by this force on a particle that moves from x = 0.00 m to x = 2.00 m?

Convert 1.2 × 10^-3 to decimal notation.

A plot of land contains 5.8 acres. How many square meters does it contain? [1 acre = 43,560 ft²]

Alpha particles (charge = +2e,mass = 6.68 × 10^-²⁷ kg,e = 1.60 × 10^-19C)0.87 μs.