Question 1

Kirchhoff's loop rule is a statement of

Accepted Answer

A)  the law of conservation of momentum. 
B)  the law of conservation of charge. 
C)  the law of conservation of angular momentum. 
D)  Newton's second law. 
E)  the law of conservation of energy. 
A)  the law of conservation of momentum. 
B)  the law of conservation of charge. 
C)  the law of conservation of angular momentum. 
D)  Newton's second law. 
E)  the law of conservation of energy.

Question 2

If the velocity of an object is zero, then that object cannot be accelerating.

Accepted Answer

A) True 
 B)False

Question 3

What is the length of the shortest pipe closed on one end and open at the other end that will have a fundamental frequency of 0.060 kHz on a day when the speed of sound is 340 m/s?

Accepted Answer

A)  2.14 m 
B)  1.24 m 
C)  1.42 m 
D)  4.12 m 
A)  2.14 m 
B)  1.24 m 
C)  1.42 m 
D)  4.12 m

Question 4

Two pure tones are sounded together and a particular beat frequency is heard. What happens to the beat frequency if the frequency of one of the tones is increased?

Accepted Answer

A)  It does not change. 
B)  It increases. 
C)  It decreases. 
D)  It could either increase or decrease. 
A)  It does not change. 
B)  It increases. 
C)  It decreases. 
D)  It could either increase or decrease.

Question 5

An astronaut stands by the rim of a crater on the Moon, where the acceleration of gravity is 1.62   and there is no air. To determine the depth of the crater, she drops a rock and measures the time it takes for it to hit the bottom. If the depth of the crater is 120 m, how long does it take for the
Rock to fall to the bottom of the crater?

Accepted Answer

A)  32.1 s 
B)  37.5 s 
C)  12.2 s 
D)  29.3 s 
E)  3.04 s 
A)  32.1 s 
B)  37.5 s 
C)  12.2 s 
D)  29.3 s 
E)  3.04 s

Question 6

The plates of a parallel-plate capacitor are maintained with constant voltage by a battery as they are pulled apart. What happens to the strength of the electric field between the plates during this
Process?

Accepted Answer

A)  It increases. 
B)  It remains constant. 
C)  It decreases. 
D)  It cannot be determined from the information given. 
A)  It increases. 
B)  It remains constant. 
C)  It decreases. 
D)  It cannot be determined from the information given.

Question 7

Consider a capacitor connected across the ac source. As the capacitance is increased, the current through the capacitor will

Accepted Answer

A)  decrease. 
B)  increase. 
C)  remain constant. 
A)  decrease. 
B)  increase. 
C)  remain constant.

Question 8

If the acceleration of an object is zero, then that object cannot be moving.

Accepted Answer

A) True 
 B)False

Question 9

A car is moving with a speed of 32.0 m/s. The driver sees an accident ahead and slams on the brakes, causing the car to slow down with a uniform acceleration of magnitude 3   How far
Does the car travel after the driver put on the brakes until it comes to a stop?

Accepted Answer

A)  9.14 m 
B)  146 m 
C)  292 m 
D)  112 m 
E)  4.57 m 
A)  9.14 m 
B)  146 m 
C)  292 m 
D)  112 m 
E)  4.57 m

Question 10

You obtain a 100-W light bulb and a 50-W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. If each one is
An incandescent bulb of fixed resistance, which statement about these bulbs is correct?

Accepted Answer

A)  The 50-W bulb glows more brightly than the 100-W bulb. 
B)  Both bulbs glow with the same brightness, but more than their normal brightness. 
C)  The 100-W bulb glows brighter than the 50-W bulb. 
D)  Both bulbs glow with the same brightness, but less than their normal brightness. 
A)  The 50-W bulb glows more brightly than the 100-W bulb. 
B)  Both bulbs glow with the same brightness, but more than their normal brightness. 
C)  The 100-W bulb glows brighter than the 50-W bulb. 
D)  Both bulbs glow with the same brightness, but less than their normal brightness.

Question 11

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (There could be more than one correct choice.)

Accepted Answer

A)  increase the charge on the plates 
B)  introduce a dielectric material between the plates 
C)  decrease the potential between the plates 
D)  increase the potential between the plates 
E)  decrease the separation between the plates 
A)  increase the charge on the plates 
B)  introduce a dielectric material between the plates 
C)  decrease the potential between the plates 
D)  increase the potential between the plates 
E)  decrease the separation between the plates

Question 12

An ideal step-up transformer doubles a primary voltage of 110 V. What is the ratio of the number of turns in its primary coil to the number of turns in the secondary coil?

Accepted Answer

A)  1:8 
B)  2:1 
C)  4:1 
D)  1:2 
E)  1:4 
A)  1:8 
B)  2:1 
C)  4:1 
D)  1:2 
E)  1:4

Question 13

In an adiabatic compression, 200 J of work is done on a gas. What is the change in internal (thermal) energy of the gas during this compression?

Accepted Answer

A)  0 J 
B)  200 J 
C)  -200 J 
D)  100 J 
A)  0 J 
B)  200 J 
C)  -200 J 
D)  100 J

Question 14

A piece of iron rests on top of a piece of wood floating in a bathtub. If the iron is removed from the wood, and kept out of the water, what happens to the water level in the tub?

Accepted Answer

A)  It goes up. 
B)  It does not change. 
C)  It goes down. 
D)  It is impossible to determine from the information given. 
A)  It goes up. 
B)  It does not change. 
C)  It goes down. 
D)  It is impossible to determine from the information given.

Question 15

Assuming equal rates of uniform acceleration in both cases, how much further would you travel if braking from  56 mi/h  to rest than from  28 mi/h?

Accepted Answer

A)   3.2  times farther 
B)  4 times farther 
C)   5.2  times farther 
D)   4.8  times farther 
A)   3.2  times farther 
B)  4 times farther 
C)   5.2  times farther 
D)   4.8  times farther

Question 16

You drop a stone down a well that is 9.5 m deep. How long is it before you hear the splash? The speed of sound in air is 343 m/s and air resistance is negligible.

Accepted Answer

A)  1.3 s 
B)  1.4 s 
C)  1.6 s 
D)  1.5 s 
E)  1.2 s 
A)  1.3 s 
B)  1.4 s 
C)  1.6 s 
D)  1.5 s 
E)  1.2 s

Question 17

Suppose that an object is moving with a constant velocity. Which statement concerning its acceleration must be correct?

Accepted Answer

A)  The acceleration is a constant non-zero value. 
B)  The acceleration is constantly increasing. 
C)  The acceleration is constantly decreasing. 
D)  The acceleration is equal to zero. 
A)  The acceleration is a constant non-zero value. 
B)  The acceleration is constantly increasing. 
C)  The acceleration is constantly decreasing. 
D)  The acceleration is equal to zero.

Question 18

A racquetball strikes a wall with a speed of  30 m/s and rebounds in the opposite direction with a speed of  26 m/s. The collision takes  20 ms. What is the average acceleration of the ball during the collision with the wall?

Accepted Answer

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

Question 19

During an isochoric process, the internal (thermal) energy of a gas decreases by 50 J. How much heat is added to the gas during this process?

Accepted Answer

A)  25 J 
B)  -50 J 
C)  0 J 
D)  -25 J 
E)  50 J 
A)  25 J 
B)  -50 J 
C)  0 J 
D)  -25 J 
E)  50 J

Question 20

A mass on a spring undergoes SHM. When the mass is at its maximum distance from the equilibrium position, which of the following statements about it are true? (There could be more
Than one correct choice.)

Accepted Answer

A)  Its speed is zero. 
B)  Its total mechanical energy is zero. 
C)  Its acceleration is zero. 
D)  Its elastic potential energy is zero. 
E)  Its kinetic energy is a maximum. 
A)  Its speed is zero. 
B)  Its total mechanical energy is zero. 
C)  Its acceleration is zero. 
D)  Its elastic potential energy is zero. 
E)  Its kinetic energy is a maximum.

Exam 2: Describing Motion: Kinematics in One Dimension

Kirchhoff's loop rule is a statement of

If the velocity of an object is zero, then that object cannot be accelerating.

What is the length of the shortest pipe closed on one end and open at the other end that will have a fundamental frequency of 0.060 kHz on a day when the speed of sound is 340 m/s?

Two pure tones are sounded together and a particular beat frequency is heard. What happens to the beat frequency if the frequency of one of the tones is increased?

The plates of a parallel-plate capacitor are maintained with constant voltage by a battery as they are pulled apart. What happens to the strength of the electric field between the plates during this Process?

Consider a capacitor connected across the ac source. As the capacitance is increased, the current through the capacitor will

If the acceleration of an object is zero, then that object cannot be moving.

A car is moving with a speed of 32.0 m/s. The driver sees an accident ahead and slams on the brakes, causing the car to slow down with a uniform acceleration of magnitude 3 How far Does the car travel after the driver put on the brakes until it comes to a stop?

You obtain a 100-W light bulb and a 50-W light bulb. Instead of connecting them in the normal way, you devise a circuit that places them in series across normal household voltage. If each one is An incandescent bulb of fixed resistance, which statement about these bulbs is correct?

Which of the following changes will increase the capacitance of a parallel-plate capacitor? (There could be more than one correct choice.)

An ideal step-up transformer doubles a primary voltage of 110 V. What is the ratio of the number of turns in its primary coil to the number of turns in the secondary coil?

In an adiabatic compression, 200 J of work is done on a gas. What is the change in internal (thermal) energy of the gas during this compression?

A piece of iron rests on top of a piece of wood floating in a bathtub. If the iron is removed from the wood, and kept out of the water, what happens to the water level in the tub?

Assuming equal rates of uniform acceleration in both cases, how much further would you travel if braking from 56 mi/h to rest than from 28 mi/h?

You drop a stone down a well that is 9.5 m deep. How long is it before you hear the splash? The speed of sound in air is 343 m/s and air resistance is negligible.

Suppose that an object is moving with a constant velocity. Which statement concerning its acceleration must be correct?

A racquetball strikes a wall with a speed of 30 m/s and rebounds in the opposite direction with a speed of 26 m/s. The collision takes 20 ms. What is the average acceleration of the ball during the collision with the wall?

During an isochoric process, the internal (thermal) energy of a gas decreases by 50 J. How much heat is added to the gas during this process?

A mass on a spring undergoes SHM. When the mass is at its maximum distance from the equilibrium position, which of the following statements about it are true? (There could be more Than one correct choice.)

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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