College Physics I Final Exam

Course Introduction

College Physics I introduces students to the fundamental principles of classical physics, focusing on mechanics, energy, and motion. The course covers topics such as kinematics, Newton's laws of motion, work and energy, momentum, rotational dynamics, and the properties of fluids. Through a combination of theoretical concepts and problem-solving techniques, students develop a deeper understanding of the natural world and build a foundation for further study in physics and related disciplines. Laboratory sessions reinforce core concepts by providing hands-on experience with experiments and data analysis.

Recommended Textbook College Physics 11th Edition by Raymond A. Serway

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Page 2

Chapter 1: Units, Trigonometry, and Vectors

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Q1) The basic function of an automobile's carburetor is to atomize the gasoline and mix it with air to promote rapid combustion.Assume that 30.0 cm3 of gasoline is atomized into N spherical droplets.Each droplet has a radius of 1.0 × 10 5 m.Find the total surface area of these N spherical droplets.

A)3.0E+4 cm2

B)1.2E+5 cm2

C)1.8E+5 cm2

D)9.0E+4 cm2

E)1.1E+5 cm2

Answer: D

Q2) Which formula is dimensionally consistent with an expression yielding a value for velocity? (a is acceleration,x is distance,and t is time)

A)v/t2

B)vx2

C)v2/t

D)at

Answer: D

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Chapter 2: Motion in One Dimension

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Q1) A ball is pushed downhill with an initial velocity of 3.0 m/s.The ball rolls down a hill with a constant acceleration of 1.6 m/s2.The ball reaches the bottom of the hill in 6.0 s.What is the ball's velocity at the bottom of the hill?

A)10 m/s

B)13 m/s

C)16 m/s

D)17 m/s

Answer: B

Q2) Consider the magnitude of the average speed,vavg,speed,mag,and the magnitude of the average velocity,vavg,velocity,mag,for the same trip.Which of the following is always true?

A)vavg,speed,mag = vavg,velocity,mag

B)vavg,speed,mag vavg,velocity,mag

C)vavg,speed,mag vavg,velocity,mag

D)none of the above

Answer: B

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Chapter 3: Motion in Two Dimensions

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Q1) A boat travels upstream and after one hour has gone 10 km.The boat next travels downstream and after one hour has gone 18 km.If the boat's speed relative to the water is constant,what is the speed of the current in the river?

A)3 km/h

B)4 km/h

C)5 km/h

D)6 km/h

E)7 km/h

Answer: B

Q2) A fireman,57.6 m away from a burning building,directs a stream of water from a fire hose at an angle of 35.2° above the horizontal.If the initial speed of the stream is 42.7 m/s,at what height will the stream of water strike the building?

A)44.2 m

B)13.8 m

C)27.3 m

D)30.8 m

E)36.4 m

Answer: C

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Chapter 4: Newtons Laws of Motion

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Q1) A man of weight Wman is standing on the second floor and is pulling on a rope to lift a box of weight Wbox from the floor below.The rope,which is of negligible weight,has tension T in it,but the pull of the rope is insufficient to lift the box off the floor.What is the magnitude of the normal force that the second floor exerts on the man in this situation?

A)Wman

B)Wman + T

C)Wman + T + a nonzero portion of Wbox

D)Wman + T + Wbox

Q2) A 16.0-kg mass and a 2.25-kg mass are connected by a light string over a massless,frictionless pulley.If g = 9.8 m/s2,what is the acceleration of the system when released?

A)13.0 m/s2

B)7.38 m/s2

C)179 m/s2

D)9.80 m/s2

E)1.86 m/s2

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Chapter 5: Energy

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Q1) Is it possible for the total mechanical energy of a moving particle to be negative?

A)No,because a moving particle has positive kinetic energy.

B)No,because potential energy cannot have a value more negative than the value of the positive kinetic energy of the particle.

C)Only if friction is involved.

D)yes

Q2) A simple pendulum,2.0 m in length,is released by a push when the support string is at an angle of 25° from the vertical.If the initial speed of the suspended mass is 1.6 m/s when at the release point,to what maximum angle will it move in the second half of its swing?

A)86.3°

B)32.8°

C)39.1°

D)83°

E)180°

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Chapter 6: Momentum, Impulse, and Collisions

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Q1) Two masses collide and stick together.Before the collision one of the masses was at rest.Is there a situation in which the kinetic energy is conserved in such a collision?

A)Yes,if the less massive particle is the one initially at rest.

B)Yes,if the more massive particle is the one initially at rest.

C)Yes,if the two particles have the same mass.

D)No,kinetic energy is always lost is such a collision.

Q2) A crane drops a 0.250-kg steel ball onto a steel plate.The ball's speeds just before impact and after are 4.00 m/s and 3.70 m/s,respectively.If the ball is in contact with the plate for 0.035 s,what is the magnitude of the average force that the ball exerts on the plate during impact?

A)55.0 N

B)2.14 N

C)28.6 N

D)26.4 N

E)1.93 N

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Chapter 7: Rotational Motion and Gravitation

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Q1) At what location does an artificial Earth satellite in elliptical orbit have its greatest speed?

A)nearest the Earth

B)farthest from the Earth

C)between Earth and Moon

D)between Earth and Sun

Q2) If a planet has a radius 16.0% greater than that of the Earth but has the same mass as the Earth,what is the acceleration due to gravity at its surface?

A)8.45 m/s2

B)1.57 m/s2

C)10.0 m/s2

D)7.28 m/s2

Q3) A 0.650-kg object is swung in a circular path and in a vertical plane on a 0.500-m-length string.If the angular speed at the bottom is 8.00 rad/s,what is the tension in the string when the object is at the bottom of the circle?

A)27.2 N

B)20.8 N

C)14.4 N

D)6.37 N

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Page 9

Chapter 8: Rotational Equilibrium and Dynamics

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Sample Questions

Q1) What is the center of mass of the system?

A)(1.29 m,3.31 m)

B)(2.06 m,3.10 m)

C)(3.31 m,1.29 m)

D)(3.10 m,2.06 m)

Q2) A hoop with mass,M,and radius,R,rolls along a level surface without slipping with a linear speed,v.What is the ratio of rotational to linear kinetic energy? (For a hoop,I = MR2. )

A)1/4

B)1/2

C)1/1

D)2/5

Q3) A hoop (I = MR2)is rolling along the ground at 10 m/s.It comes to a hill and starts going up.Assuming no losses to friction,how far does it travel vertically up the hill before it stops?

A)10 m

B)3.7 m

C)5.1 m

D)7.7 m

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Page 10

Chapter 9: Fluids and Solids

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Q1) How much power is theoretically available from a mass flow of 1 000 kg/s of water that falls a vertical distance of 120 m?

A)1.18E+6 kW

B)1.20E+5 kW

C)1.18E+3 W

D)8.17E+1 W

E)1.18E+6 W

Q2) What is the minimum diameter of a steel wire if it is to support a mass of 80 kg.The elastic limit of steel is 5.0 × 108 Pa.

A)1.4 mm

B)2.0 mm.

C)1.0 mm

D)2.0 mm

Q3) A heavily loaded boat is floating in a pond.The boat sinks because of a leak.What happens to the surface level of the pond?

A)It stays the same.

B)It goes up.

C)It goes down.

D)More information is needed to reach a conclusion.

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Page 11

Chapter 10: Thermal Physics

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Q1) 13.0 g of water in a 3.25-L pressure vessel is heated to 480°C.What is the pressure inside the container? (R = 0.082 L atm/mol K,one mole of water has a mass of 18 grams)

A)24.7 atm

B)13.7 atm

C)8.75 atm

D)15.7 atm

E)19.8 atm

Q2) The sulfur hexafluoride molecule consists of one sulfur atom and six fluorine atoms.The atomic masses of sulfur and fluorine are 32.0 u and 19.00 u,respectively.What mass does one mole of this gas have?

A)32.0 g

B)51.0 g

C)146 g

D)608 g

Q3) For a quantity of ideal gas,which of the following is constant?

A)PTV

B)P/TV

C)PT/V

D)PV/T

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Page 12

Chapter 11: Energy in Thermal Processes

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Q1) Inside a house,stepping on a tile floor barefooted may feel almost cold,but stepping on carpet in an adjacent room feels comfortably warm.Why is this?

A)It's because the tile is below room temperature while the carpet is at room temperature.

B)It's because the tile is at room temperature while carpet is normally warmer.

C)It's because the thermal conductivity of tile is less than that of carpet.

D)It's because the thermal conductivity of carpet is less than that of tile.

Q2) The use of fiberglass insulation in the outer walls of a building is intended to minimize heat transfer through the wall by what process?

A)conduction

B)radiation

C)convection

D)vaporization

Q3) In winter,light-colored clothes will keep you warmer than dark-colored clothes if

A)you are warmer than your surroundings.

B)you are at the same temperature as your surroundings.

C)you are cooler than your surroundings.

D)you are standing in sunlight.

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Chapter 12: The Laws of Thermodynamics

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Q1) The surface of the Sun is at approximately 5 700 K and the temperature of the Earth's surface is about 290 K.What total entropy change occurs when 1 175 J of heat energy is transferred from the Sun to the Earth?

A)4.05 J/K

B)3.85 J/K

C)0.206 J/K

D)4.26 J/K

E)6.05 J/K

Q2) A heat engine receives 7 900 J of heat from its combustion process and loses 3 200 J through the exhaust and friction.What is its efficiency?

A)59%

B)35%

C)21%

D)41%

E)77%

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Chapter 13: Vibrations and Waves

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Q1) A 0.38-kg block rests on a level surface and is attached to a horizontally aligned spring with a spring constant of 55.0 N/m.The block is initially displaced 4.8 cm from the equilibrium point and then released to set up a simple harmonic motion.A frictional force of 0.50 N exists between the block and surface.What is the speed of the block when it passes through the equilibrium point after being released from the 4.8-cm displacement point?

A)0.21 m/s

B)0.32 m/s

C)0.64 m/s

D)0.46 m/s

E)1.8 m/s

Q2) For a mass suspended on a spring in the vertical direction,the time for one complete oscillation will depend on:

A)the value for g (the acceleration due to gravity).

B)the distance the mass was originally pulled down.

C)the maximum speed of the oscillating mass.

D)the time doesn't depend on any of the above.

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Page 15

Chapter 14: Sound

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Q1) A tuning fork is sounded above a resonating tube (one end closed),which resonates at a length of 0.80 m and again at 1.40 m.What is the frequency of the fork when the speed of sound is taken to be 340 m/s?

A)243 Hz

B)155 Hz

C)425 Hz

D)567 Hz

E)748 Hz

Q2) A 550-Hz whistle is moved toward a listener at a speed of 25.0 m/s.At the same time,the listener moves at a speed of 35.0 m/s in a direction away from the whistle.What is the apparent frequency heard by the listener? (The speed of sound is 340 m/s. )

A)510 Hz

B)533 Hz

C)655 Hz

D)460 Hz

E)594 Hz

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Chapter 15: Electric Forces and Fields

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Q1) If a conductor is in electrostatic equilibrium near an electrical charge:

A)the total charge on the conductor must be zero.

B)the electric field inside the conductor must be zero.

C)any charges on the conductor must be uniformly distributed.

D)the sum of all forces between the conductor and the charge must be zero.

Q2) We have an initially uncharged hollow metallic sphere with radius of 5.0 cm.I place a small object with a charge of +20 µC at the center of the sphere through a hole in the surface.Find the electric field present at a point 10 cm from the sphere's center.(ke = 8.99 × 109 N m2/C2)

A)3.6E+7 N/C

B)9.0E+6 N/C

C)1.8E+7 N/C

D)4.5E+6 N/C

E)2.7E+7 N/C

Q3) When charging two objects by rubbing them together

A)Neither may be a conductor.

B)They must be made of different material.

C)They will sometimes end up with both being positively charged.

D)The heat produced by friction is a necessary part of this process.

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Page 17

Chapter 16: Electrical Energy and Capacitance

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Q1) A 10.00-V battery is connected between two parallel metal plates 4.00 mm apart.What is the magnitude of the electric field between the plates?

A)2.50 × 103 N/C

B)25.0 N/C

C)14.0 N/C

D)4.00 × 10 6 N/C

E)2.90 × 103 N/C

Q2) A parallel-plate capacitor is attached to a fixed voltage supply.If the plates are then separated to double the initial value,what happens to the energy stored by the capacitor?

A)It halves,go figure!

B)It stays the same since the volume doubles while the electric field halves.

C)It doubles since the volume between the plates doubles.

D)It quadruples since both the volume and the field double in this case.

Q3) The quantity of electrical potential,the volt,is dimensionally equivalent to:

A)force/charge.

B)force × charge.

C)electric field × distance.

D)electric field/distance.

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Page 18

Chapter 17: Current and Resistance

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Q1) Resistor A has twice the resistance of resistor B.When individually connected across a given potential difference,which one dissipates the most power;and when connected in series across the same potential difference,which one dissipates the most power?

A)A,A

B)A,B

C)B,B

D)B,A

Q2) An electric toaster requires 1 300 W at 150 V.What is the resistance of the heating coil?

A)2.9

B)74

C)34

D)17

E)38

Q3) If a certain resistor obeys Ohm's law,its resistance will change:

A)as the voltage across the resistor changes.

B)as the current through the resistor changes.

C)as the energy given off by the electrons in their collisions changes.

D)none of the above,since resistance is a constant for the given resistor.

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Page 19

Chapter 18: Direct-Current Circuits

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Q1) In an RC circuit using two capacitors in series with two resistors,which of the following combinations would give the greatest time constant?

A)both capacitors in series placed in series with both resistors in series

B)both capacitors in parallel placed in series with both resistors in parallel

C)both capacitors in series placed in series with both resistors in parallel

D)both capacitors in parallel placed in series with both resistors in series

Q2) Three 6.0- resistors are connected in parallel.What is their equivalent resistance?

A)0.083

B)3.0

C)0.50

D)2.0

E)6.0

Q3) What is the resistance of the bulb?

A)0.079

B)1.5

C)5.2

D)5.6

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Chapter 19: Magnetism

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Q1) A soft magnetic material has which property?

A)It cannot be magnetized.

B)It is easy to magnetize.

C)It is hard to magnetize.

D)It attracts slowly moving charges.

Q2) Different units can be used to measure the same physical quantity,differing only by some multiplicative factor.The cgs unit for magnetic field,the gauss,is equal to ________ tesla.

A)104

B)10-4

C)0.5

D)These units do not measure the same physical quantity.

Q3) Two long parallel wires are a distance d apart.The current in one wire is 10 A and the current in the other wire is 30 A.The currents are in the same direction.If the 30-A current is increased to 50 A,by what factor does the magnitude of the magnetic field midway between the wires change?

A)2

B)4

C)25/9

D)5/3

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Chapter 20: Induced Voltages and Inductance

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Q1) A square coil,enclosing an area with sides 2.75 cm long,is wrapped with 1 875 turns of wire.A uniform magnetic field perpendicular to its plane is turned on and increases to 0.390 T during an interval of 1.70 s.What average voltage is induced in the coil?

A)0.325 V

B)0.553 V

C)1.73 V

D)0.118 V

E)1.82 V

Q2) An RL series circuit has: 4.8-mH coil,2.8- resistor,1.0-V battery,ammeter and switch.After the switch is closed for a long time,find the final value of the current.

A)7.4E+1 A

B)3.6E-1 A

C)1.3E-2 A.

D)2.8E+2 A

E)1.3E-2 A

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Chapter 21: Alternating-Current Circuits and Electromagnetic Waves

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Q1) An FM radio tuning circuit has a coil with an inductance of 0.0036 mH.What is the value of the capacitance if the set is tuned to 91.3 MHz?

A)3.38E-12 F

B)2.65E-12 F

C)4.84E-13 F

D)8.45E-13 F

E)8.33E-12 F

Q2) In a 60-Hz RLC circuit,the phase angle is positive.The values of the resistance,inductance,and the capacitance are now doubled.Which of the following is now true about the phase angle?

A)It is still positive.

B)It could be zero.

C)It will be negative.

D)It could be positive,negative,or zero,but it cannot be greater than its original value.

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Chapter 22: Reflection and Refraction of Light

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Q1) Three flat layers of transparent material are stacked upon one another.The top layer has index of refraction n1,the middle has n2 and the bottom one has n3.If n1 > n2 > n3,and if a ray of light strikes the top layer at an angle of incidence i = 30º,in which layer is the angle of refraction the greatest?

A)the top layer

B)the middle layer

C)the bottom layer

D)Once the ray enters the touching layers,the angle of refraction remains constant.

Q2) One phenomenon that demonstrates the wave nature of light is:

A)the photoelectric effect.

B)quantization effects.

C)absorption of light by an electron.

D)interference effects.

Q3) Dispersion occurs when:

A)some materials bend light more than other materials.

B)a material slows down some wavelengths more than others.

C)a material changes some frequencies more than others.

D)light has different speeds in different materials.

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Page 24

Chapter 23: Mirrors and Lenses

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Q1) Ron fills a beaker with glycerin (n = 1.473)to a depth of 4.0 cm.If he looks straight down through the glycerin surface,he will perceive the liquid to be what apparent depth?

A)5.9 cm

B)4.0 cm

C)2.7 cm

D)3.3 cm

E)4.9 cm

Q2) For a diverging lens with one flat surface,the radius of curvature for the curved surface is 25.0 cm.What must the index of refraction be so that the focal length is -17.0 cm?

A)0.680

B)1.68

C)2.47

D)1.74

E)1.47

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Chapter 24: Wave Optics

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Q1) What wavelength monochromatic source in the visible region (390 to 710 nm)can be used to constructively reflect off a soap film (n = 1.46)if the film is 78.0 nm thick?

A)467 nm

B)386 nm

C)456 nm

D)404 nm

E)499 nm

Q2) If a wave from one slit of a Young's double-slit set-up arrives at a point on the screen one wavelength behind the wave from the other slit,what is observed at that point?

A)dark fringe

B)bright fringe

C)multi-colored fringe

D)gray fringe,neither dark nor bright

Q3) The blue light from the sky has been polarized by:

A)selective absorption.

B)reflection.

C)double refraction.

D)scattering.

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Chapter 25: Optical Instruments

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Q1) Two thin lenses have powers P1 and P2,measured in diopters.If these lenses are placed in contact with one another,the resulting power is A)more than both P1 and P2. B)less than both P1 and P2.

C)half-way between P1 and P2. D)P1 + P2.

Q2) A magnifier uses a

A)converging lens to form a real image.

B)converging lens to form a virtual image.

C)diverging lens to form a virtual image.

D)diverging lens to form a real image.

Q3) You are building a compound microscope with an objective lens of focal length 0.60 cm and an eyepiece lens of focal length 5.0 cm.You mount the lenses 18 cm apart.What is the maximum magnification of your microscope?

A)5

B)10

C)75

D)150

E)18

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Page 27

Chapter 26: Relativity

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Q1) A meter stick moving in a direction parallel to its length appears to be only 43.6 cm long to an observer.What is the meter stick's speed relative to the observer? (c = 3.00 × 108 m/s)

A)2.25 × 108 m/s

B)1.69 × 108 m/s

C)2.70 × 108 m/s

D)1.31 × 108 m/s

E)2.95 × 108 m/s

Q2) A mass is bouncing on the end of a spring with a period T when measured by a ground observer.What would the period of oscillation be (as measured by the same observer)if the mass and spring were moving past the ground observer at a speed of 0.9c?

A)5.3 T

B)0.40 T

C)3.2 T

D)2.3 T

E)1.1 T

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Page 28

Chapter 27: Quantum Physics

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Q1) According to Wien's displacement law,if the absolute temperature of a radiating blackbody is tripled,then the peak wavelength emitted will change by what factor?

A)1/3

B)1

C)3

D)9

Q2) What is the energy of a photon that has the same wavelength as a 11.4-eV electron? (h = 6.63 × 10 34 J s,me = 9.11 × 10-31 kg,1 eV = 1.6 × 10-19 J)

A)1140 eV

B)32 eV

C)103 eV

D)3420 eV

E)1030 eV

Q3) An important use of x-ray diffraction was:

A)the observation of Compton scattering.

B)determining the structure of the DNA molecule.

C)production of positrons.

D)observation of the photoelectric effect.

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Page 29

Chapter 28: Atomic Physics

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73 Verified Questions

73 Flashcards

Source URL: https://quizplus.com/quiz/67700

Sample Questions

Q1) The ground state electronic configuration for sodium is 1s22s22p63s1.What is the orbital quantum number of the last (3s1)electron?

A)3

B)1

C)2

D)0

Q2) If the principal quantum number for hydrogen is 7,which one of the following is not a permitted orbital magnetic quantum number for that atom?

A)10

B)-2

C)0

D)5 E)3

Q3) According to the Rutherford model of the atom,most of the volume of an atom A)is empty space.

B)was occupied by the nucleus.

C)contained positive charges.

D)excluded electrons.

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Page 30

Chapter 29: Nuclear Physics

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88 Verified Questions

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Source URL: https://quizplus.com/quiz/67701

Sample Questions

Q1) A 1-gram sample of wood is taken from an ancient site.If the Carbon-14 activity of the sample is 30.5% that of present-day organic material,what is the age of the wood?

(T1/2 for 14C is 5 730 years)

A)3,980 years

B)6,800 years

C)5,200 years

D)9,820 years

E)10,920 years

Q2) The Q of a nuclear reaction is equal to:

A)the total charge involved.

B)energy associated with the change in mass.

C)energy associated with momentum conservation.

D)the exothermic endothermy.

Q3) Rutherford's experiments involving the use of alpha particle beams directed onto thin metal foils demonstrated the existence of which of the following?

A)neutron

B)proton

C)nucleus

D)positron

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Page 31

Chapter 30: Nuclear Energy and Elementary Particles

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90 Verified Questions

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Sample Questions

Q1) "MeV/c2" is a unit for A)energy.

B)mass.

C)momentum.

D)nuclear force.

Q2) If a negative muon decays to form an electron-antineutrino pair and one other particle,the other particle may be a(n)

A)positron.

B)antineutrino.

C)mu neutrino.

D)electron.

Q3) If a self-sustained controlled fusion reaction is to operate,a condition which must be met is that the fuel material be subjected to which of the following condition(s)?

A)confined for sufficient time period

B)have sufficiently high density

C)be at sufficiently high temperature

D)All of the above choices are valid.

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