Question 1

An ideal gas is compressed isobarically to one-third of its initial volume. The resulting pressure will be

Accepted Answer

A)  three times as large as the initial value. 
B)  nine times the initial value. 
C)  more than three times as large as the initial value. 
D)  equal to the initial value. 
E)  impossible to predict on the basis of this data. 
A)  three times as large as the initial value. 
B)  nine times the initial value. 
C)  more than three times as large as the initial value. 
D)  equal to the initial value. 
E)  impossible to predict on the basis of this data.

Question 2

A wire that is 1.0 m long with a mass of 90 g is under a tension of 710 N. When a transverse wave travels on the wire, its wavelength is 0.10 m and its amplitude is 6.5 mm. What is the frequency of
This wave?

Accepted Answer

A)  1000 Hz 
B)  1200 Hz 
C)  1500 Hz 
D)  920 Hz 
E)  890 Hz 
A)  1000 Hz 
B)  1200 Hz 
C)  1500 Hz 
D)  920 Hz 
E)  890 Hz

Question 3

A light bulb operating at a dc voltage of 120 V has a resistance of 200 Ω. How much power is dissipated in this bulb?

Accepted Answer

A)  7.2 W 
B)  60 W 
C)  14 mW 
D)  72 W 
E)  100 W 
A)  7.2 W 
B)  60 W 
C)  14 mW 
D)  72 W 
E)  100 W

Question 4

A child standing on a bridge throws a rock straight down. The rock leaves the child's hand at time t = 0 s. If we take upward as the positive direction, which of the graphs shown
Below best represents the velocity of the stone as a function of time?

Accepted Answer

A)   
B)   
C)   
D)   
E)   
A)   
B)   
C)   
D)   
E)

Question 5

A ball is thrown downward from the top of a building with an initial speed of 25 m/s. It strikes the ground after 2.0 s. How high is the building, assuming negligible air resistance?

Accepted Answer

A)  30 m 
B)  70 m 
C)  20 m 
D)  50 m 
A)  30 m 
B)  70 m 
C)  20 m 
D)  50 m

Question 6

The velocity   of a particle as a function of time is given by     What is the average acceleration of the particle between  t=1.0 s  and  t=2.0 s?

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 7

A solid cylindrical bar conducts heat at a rate of 25 W from a hot to a cold reservoir under steady state conditions. If both the length and the diameter of this bar are doubled, the rate at which it
Will conduct heat between these reservoirs will be

Accepted Answer

A)  25 W 
B)  12.5 W 
C)  100 W 
D)  200 W 
E)  50 W 
A)  25 W 
B)  12.5 W 
C)  100 W 
D)  200 W 
E)  50 W

Question 8

Two loudspeakers placed 6.00 m apart are driven in phase by an audio oscillator having a frequency range from 1908 Hz to 2471 Hz. A point P is located 4.70 m from one loudspeaker and
3)60 m from the other speaker. At what frequency of the oscillator does the sound reaching point P
Interfere constructively? The speed of sound is 344 m/s.

Accepted Answer

A)  2420 Hz 
B)  2340 Hz 
C)  2270 Hz 
D)  2110 Hz 
E)  2190 Hz 
A)  2420 Hz 
B)  2340 Hz 
C)  2270 Hz 
D)  2110 Hz 
E)  2190 Hz

Question 9

Two in-phase loudspeakers are placed along a wall and are separated by a distance of 4.00 m. They emit sound with a frequency of 514 Hz. A person is standing away from the wall, in front of
One of the loudspeakers. What is the closest nonzero distance from the wall the person can stand
And hear constructive interference? The speed of sound in air is 343 m/s.

Accepted Answer

A)  1.2 m 
B)  1.6 m 
C)  0.73 m 
D)  0.34 m 
A)  1.2 m 
B)  1.6 m 
C)  0.73 m 
D)  0.34 m

Question 10

If you run a complete loop around an outdoor track of length 400 m in 100 s, find your
(a) average velocity and (b) average speed.

Accepted Answer

The answer of If you run a complete loop around...

Question 11

Which of the following statements is true for a series RLC ac circuit in resonance? (There could be more than one correct choice).

Accepted Answer

A)  The rms current is equal to the peak current. 
B)  The current in the circuit is a minimum. 
C)  The inductive reactance and the capacitive reactance are both equal to zero. 
D)  The current in the circuit is a maximum. 
E)  The inductive reactance is equal to the capacitive reactance. 
A)  The rms current is equal to the peak current. 
B)  The current in the circuit is a minimum. 
C)  The inductive reactance and the capacitive reactance are both equal to zero. 
D)  The current in the circuit is a maximum. 
E)  The inductive reactance is equal to the capacitive reactance.

Question 12

The figure shows a graph of the position of a moving object as a function of time.
(a) What is the average velocity of the object from t = 0 s to t = 4.0 s?
(b) What is the average velocity of the object from t = 0 s to t = 6.0 s?

Accepted Answer

(a) 10 m/s

Question 13

A car approaches you at a constant speed, sounding its horn, and you hear a frequency of 76 Hz. After the car goes by, you hear a frequency of 65 Hz. What is the frequency of the sound emitted
By the horn? The speed of sound in the air is 343 m/s.

Accepted Answer

A)  70 Hz 
B)  68 Hz 
C)  72 Hz 
D)  69 Hz 
E)  71 Hz 
A)  70 Hz 
B)  68 Hz 
C)  72 Hz 
D)  69 Hz 
E)  71 Hz

Question 14

The figure shows a graph of the velocity of an object as a function of time. What is the acceleration of the object at the following times?

Accepted Answer

(a) 11ec81b6_c475_109f_b208_63

Question 15

A motorist makes a trip of 180 miles. For the first 90 miles she drives at a constant speed of 30 mph. At what constant speed must she drive the remaining distance if her average speed for the
Total trip is to be 40 mph?

Accepted Answer

A)  55 mph 
B)  60 mph 
C)  52.5 mph 
D)  45 mph 
E)  50 mph 
A)  55 mph 
B)  60 mph 
C)  52.5 mph 
D)  45 mph 
E)  50 mph

Question 16

As more resistors are added in parallel across a constant voltage source, the power supplied by the source

Accepted Answer

A)  does not change. 
B)  increases. 
C)  increases for a time and then starts to decrease. 
D)  decreases. 
A)  does not change. 
B)  increases. 
C)  increases for a time and then starts to decrease. 
D)  decreases.

Question 17

A plastic rod is charged up by rubbing a wool cloth, and brought to an initially neutral metallic sphere that is insulated from ground. It is allowed to touch the sphere for a few seconds, and then
Is separated from the sphere by a small distance. After the rod is separated, the rod

Accepted Answer

A)  is repelled by the sphere. 
B)  feels no force due to the sphere. 
C)  is attracted to the sphere. 
A)  is repelled by the sphere. 
B)  feels no force due to the sphere. 
C)  is attracted to the sphere.

Question 18

Arthur and Betty start walking toward each other when they are 100 m apart. Arthur has
a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. How long does it take for them to
meet?

Accepted Answer

The answer of Arthur and Betty start walking toward each...

Question 19

If, in the figure, you start from the Bakery, travel to the Cafe, and then to the Art Gallery in
2.00 hours, what is your
(a) average speed?
(b) average velocity?

Accepted Answer

(a) 5.25 k

Question 20

An instrument is thrown upward with a speed of  15 m/s on the surface of planet  X  where the acceleration due to gravity is   and there is no atmosphere. How long does it take for the instrument to return to where it was thrown?

Accepted Answer

A)   12 s 
B)   6.0 s 
C)   10 s 
D)   8.0 s 
A)   12 s 
B)   6.0 s 
C)   10 s 
D)   8.0 s

Exam 2: Describing Motion: Kinematics in One Dimension

An ideal gas is compressed isobarically to one-third of its initial volume. The resulting pressure will be

A wire that is 1.0 m long with a mass of 90 g is under a tension of 710 N. When a transverse wave travels on the wire, its wavelength is 0.10 m and its amplitude is 6.5 mm. What is the frequency of This wave?

A light bulb operating at a dc voltage of 120 V has a resistance of 200 Ω. How much power is dissipated in this bulb?

A child standing on a bridge throws a rock straight down. The rock leaves the child's hand at time t = 0 s. If we take upward as the positive direction, which of the graphs shown Below best represents the velocity of the stone as a function of time?

A ball is thrown downward from the top of a building with an initial speed of 25 m/s. It strikes the ground after 2.0 s. How high is the building, assuming negligible air resistance?

The velocity of a particle as a function of time is given by What is the average acceleration of the particle between t=1.0 s and t=2.0 s?

A solid cylindrical bar conducts heat at a rate of 25 W from a hot to a cold reservoir under steady state conditions. If both the length and the diameter of this bar are doubled, the rate at which it Will conduct heat between these reservoirs will be

If you run a complete loop around an outdoor track of length 400 m in 100 s, find your (a) average velocity and (b) average speed.

Which of the following statements is true for a series RLC ac circuit in resonance? (There could be more than one correct choice).

The figure shows a graph of the position of a moving object as a function of time. (a) What is the average velocity of the object from t = 0 s to t = 4.0 s? (b) What is the average velocity of the object from t = 0 s to t = 6.0 s?

A car approaches you at a constant speed, sounding its horn, and you hear a frequency of 76 Hz. After the car goes by, you hear a frequency of 65 Hz. What is the frequency of the sound emitted By the horn? The speed of sound in the air is 343 m/s.

The figure shows a graph of the velocity of an object as a function of time. What is the acceleration of the object at the following times?

A motorist makes a trip of 180 miles. For the first 90 miles she drives at a constant speed of 30 mph. At what constant speed must she drive the remaining distance if her average speed for the Total trip is to be 40 mph?

As more resistors are added in parallel across a constant voltage source, the power supplied by the source

A plastic rod is charged up by rubbing a wool cloth, and brought to an initially neutral metallic sphere that is insulated from ground. It is allowed to touch the sphere for a few seconds, and then Is separated from the sphere by a small distance. After the rod is separated, the rod

Arthur and Betty start walking toward each other when they are 100 m apart. Arthur has a speed of 3.0 m/s and Betty has a speed of 2.0 m/s. How long does it take for them to meet?

If, in the figure, you start from the Bakery, travel to the Cafe, and then to the Art Gallery in 2.00 hours, what is your (a) average speed? (b) average velocity?

An instrument is thrown upward with a speed of 15 m/s on the surface of planet X where the acceleration due to gravity is and there is no atmosphere. How long does it take for the instrument to return to where it was thrown?

Introduction, Measurement, Estimating

Kinematics in Two Dimensions; Vectors

Dynamics: Newtons Laws of Motion

Circular Motion; Gravitation

Work and Energy

Linear Momentum

Rotational Motion

Static Equilibrium; Elasticity and Fracture

Fluids

Oscillations and Waves

Sound

Temperature and Kinetic Theory

Heat

The Laws of Thermodynamics

Electric Charge and Electric Field

Electric Potential

Electric Currents

Dc Circuits

Magnetism

Electromagnetic Induction and Faradays Law

Electromagnetic Waves

Light: Geometric Optics

The Wave Nature of Light

Optical Instruments

The Special Theory of Relativity

Early Quantum Theory and Models of the Atom

Quantum Mechanics of Atoms

Molecules and Solids

Nuclear Physics and Radioactivity

Nuclear Energy; Effects and Uses of Radiation

Elementary Particles

Astrophysics and Cosmology

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