Conceptual Physics
Textbook Exam Questions
Course Introduction
Conceptual Physics offers a broad introduction to the fundamental principles of physics with an emphasis on conceptual understanding rather than complex mathematics. The course explores topics such as motion, energy, heat, electricity, magnetism, waves, and the structure of matter, highlighting their real-world applications and relevance to everyday life. Through demonstrations, experiments, and interactive discussions, students develop critical thinking skills and cultivate an appreciation for the scientific method, enabling them to analyze natural phenomena and technological advancements from a physics perspective.
Recommended Textbook
The Physical Universe 15th Edition by Konrad Krauskopf
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988 Verified Questions
988 Flashcards
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Page 2
Chapter 1: The Scientific Method
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Sample Questions
Q1) The speed of a planet in its orbit
A)is always the same.
B)is least when it is closest to the sun.
C)is highest when it is closest to the sun.
D)Any of the above choices, depending on the planet.
Answer: C
Q2) In which one or more of the following is the earth assumed to be the center of the universe?
A)The Ptolemaic system.
B)The Copernican system.
C)Kepler's laws of planetary motion.
D)Newton's law of gravity.
Answer: A
Q3) When the sun, the earth, and the moon are all in line,
A)high tides and low tides are both higher than usual.
B)high tides and low tides are both lower than usual.
C)high tides are higher than usual and low tides are lower than usual.
D)high tides are lower than usual and low tides are higher than usual.
Answer: C
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Page 3
Chapter 2: Motion
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Sample Questions
Q1) The speed of an object moving in a circle is doubled.The centripetal force needed is
A)one-quarter as much as before.
B)half as much as before.
C)twice as much as before.
D)four times as much as before.
Answer: D
Q2) The time needed for a car whose speed is 60 km/h to travel 800 m is
A)0.48 min.
B)0.8 min.
C)4.5 min.
D)13 min.
Answer: B
Q3) A crane exerts an upward force of 200 N on a 20-kg crate.The crate's upward acceleration is A)0.
B)0.2 m/s<sup>2</sup>.
C)10 m/s<sup>2</sup>.
D)98 m/s<sup>2</sup>.
Answer: B
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Chapter 3: Energy
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Sample Questions
Q1) To prevent it from tumbling in flight, a projectile such as a football is sent off spinning.The physical principle involved is
A)conservation of energy.
B)conservation of linear momentum.
C)conservation of angular momentum.
D)the first law of motion.
Answer: C
Q2) When a skater pulls in her arms to turn faster, her angular momentum
A)increases.
B)decreases.
C)remains the same.
D)Any of these choices, depending on circumstances.
Answer: C
Q3) Which one or more of the following is a vector quantity?
A) Linear momentum.
B) Angular momentum.
C) Kinetic energy.
D) Potential energy.
E) Both A and B.
Answer: E
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Chapter 4: Energy and the Future
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Sample Questions
Q1) Of the following greenhouse gases, the least important is/are A)carbon dioxide.
B)CFC and HCFC refrigeration gases.
C)nitrous oxide.
D)methane.
Q2) The proportion of the world's electricity that comes from nuclear energy is about A)1/20.
B)1/6.
C)1/3.
D)1/2.
Q3) The proportion of the world's electricity that comes from wind turbines is roughly A)3 percent.
B)10 percent.
C)20 percent.
D)30 percent.
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6
Chapter 5: Matter and Heat
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Sample Questions
Q1) The specific heat of water is 4.2 kJ/kg<sup>\(\circ\)</sup>C.How long will it take for a 2-kW heating element to raise the temperature of 30 kg of water from 20<sup>\(\circ\)</sup>C to 80<sup>\(\circ\)</sup>C?
A)6.3 min
B)15 min
C)63 min
D)84 min
Q2) Heat transfer by conduction occurs
A)only in liquids.
B)only in solids.
C)only in liquids and solids.
D)in liquids, solids, and gases.
Q3) Which of the following formulas relating temperatures on the Celsius and Fahrenheit scales is correct?
A)T<sub>c</sub> = (5/9)(T<sub>F</sub> - 32<sup>\(\circ\)</sup>)
B)T<sub>c</sub> = (5/9)(T<sub>F</sub> + 32<sup>\(\circ\)</sup>)
C)T<sub>c</sub> = (9/5)(T<sub>F</sub> - 32<sup>\(\circ\)</sup>)
D)T<sub>c</sub> = (9/5)(T<sub>F</sub> + 32<sup>\(\circ\)</sup>)
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7
Chapter 6: Electricity and Magnetism
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Sample Questions
Q1) If undisturbed, an electric current in a superconducting wire loop
A)will decrease to a stop in a few seconds.
B)will decrease to a stop in a day or two.
C)will continue indefinitely.
D)will gradually increase.
Q2) A transformer used to reduce 240-V ac to 120-V ac has an input current of 15 A. Its output current is
A) 5 A.
B) 7.5 A.
C) 15 A.
D) 30 A.
Q3) Direct electric current cannot be used to operate
A)electric motors.
B)electric heaters.
C)electromagnets.
D)transformers.
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Chapter 7: Waves
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Sample Questions
Q1) The musical note A has a frequency of 440 Hz and its wavelength in seawater is 3.5 m.The speed of sound in seawater is A)80 m/s.
B)126 m/s.
C)1540 m/s.
D)3 * 10<sup>8</sup> m/s.
Q2) Dispersion is the term used to describe the A)splitting of white light into its component colors in refraction. B)propagation of light in straight lines.
C)bending of a beam of light when it goes from one medium to another. D)bending of a beam of light when it strikes a mirror.
Q3) A 80-dB sound carries more energy than a 40-dB sound by a factor of A)2. B)40.
C)400.
D)10,000.
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9
Chapter 8: The Nucleus
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Sample Questions
Q1) If radium and chlorine combine to form radium chloride, the compound is A)no longer radioactive.
B)half as radioactive as its radium content.
C)as radioactive as its radium content.
D)twice as radioactive as its radium content.
Q2) The atomic number of a nucleus decreases when it emits A)a proton.
B)a neutron.
C)an electron.
D)a positron.
Q3) A chain reaction does not occur in A)ordinary nuclear reactors.
B)breeder reactors.
C)fusion reactors.
D)fission nuclear weapons.
Q4) Which, if any, of the following elements have no radioactive isotopes?
A)Hydrogen.
B)Potassium.
C)Uranium.
D)All of these elements have radioactive isotopes.
Page 10
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Chapter 9: The Atom
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Sample Questions
Q1) X-rays are
A)electromagnetic waves of very short wavelength.
B)electromagnetic waves of very long wavelength.
C)matter waves of very short wavelength.
D)matter waves of very long wavelength.
Q2) The electron structures of atoms never emit
A)gamma rays.
B)x-rays.
C)ultraviolet light.
D)infrared light.
Q3) The orbital of an electron in an atom is
A)the region around the nucleus in which it is most likely to be found.
B)the path it follows around the nucleus.
C)its de Broglie wave.
D)its angular momentum.
Q4) Classical physics cannot account for why
A)atoms can contain electrons.
B)atomic electrons are in motion.
C)atoms can emit electromagnetic waves.
D)atoms can be stable.
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Chapter 10: The Periodic Law
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Sample Questions
Q1) AgNO<sub>3</sub> reacts with CaCl<sub>2</sub> to form AgCl and Cu(NO<sub>3</sub>)<sub>2</sub>.The number of units of AgNO<sub>3</sub> needed to form one unit of Cu(NO<sub>3</sub>)<sub>2</sub> in this reaction is A)1.
B)2.
C)3.
D)4.
Q2) The chromate ion has the formula CrO<sub>4</sub><sup>2-</sup>.The formula of tin(I) chromate is
A)SnCrO<sub>4</sub>.
B)Sn<sub>2</sub>CrO<sub>4</sub>.
C)Sn(CrO<sub>4</sub>)<sub>2</sub>.
D)Sn<sub>2</sub>(CrO<sub>4</sub>)<sub>2</sub>.
Q3) The most active of the following metals is A)silver.
B)potassium.
C)zinc.
D)copper.
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Chapter 11: Crystals, Ions, and Solutions
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Sample Questions
Q1) When equivalent amounts of a strong acid and a strong base react, the resulting solution is
A)acidic.
B)basic.
C)neutral.
D)pure water.
Q2) With increasing temperature, the solubility of a solid in a liquid
A)decreases.
B)increases.
C)remains the same.
D)Any of these choices could be correct, depending on the particular solid and liquid.
Q3) Ionic crystals dissolve only in liquids that are A)polar.
B)nonpolar.
C)saturated.
D)supersaturated.
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Chapter 12: Chemical Reactions
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Sample Questions
Q1) An enzyme is a
A)gasoline additive that reduces pollution.
B)constituent of natural gas.
C)solvent used in electrolysis.
D)biological catalyst.
Q2) Oxidation-reduction reactions involve the transfer between the reacting substances of A)electrons.
B)H<sup>+</sup> ions.
C)O<sub>2-</sub> ions.
D)O<sub>2</sub> molecules.
Q3) The number of moles of H<sub>2</sub>O formed when 1 mole of O<sub>2</sub> reacts with C<sub>5</sub>H<sub>12</sub> in the reaction C<sub>5</sub>H<sub>12</sub> + 8O<sub>2</sub> \(\rarr\)5CO<sub>2</sub> + 6H<sub>2</sub>O is A)3/4.
B)4/3.
C)6.
D)8.
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Page 14
Chapter 13: Organic Chemistry
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Sample Questions
Q1) Muscles consist mainly of A)carbohydrates. B)proteins. C)lipids.
D)nucleic acids.
Q2) Ethanol
A)is also known as methyl alcohol.
B)is not poisonous.
C)has OH groups in its molecules. D)ionizes when added to water.
Q3) A long chain of identical simple molecules linked together is called a(n) A)monomer.
B)polymer. C)isomer.
D)elastomer.
Q4) The number of carbon-carbon bonds in acetylene, C<sub>2</sub>H<sub>2</sub>, is A)1.
B)2. C)3. D)4.
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Chapter 14: Atmosphere and Hydrosphere
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Sample Questions
Q1) Atmospheric pressure is half its sea-level value at an altitude of about A)1 km (3300 ft).
B)5 km (16,400 ft).
C)20 km (12.4 mi).
D)100 km (62 mi).
Q2) The general direction of the trade winds in both hemispheres is A)north.
B)south.
C)east.
D)west.
Q3) A very narrow cyclonic storm is called a A)hurricane.
B)typhoon.
C)tornado.
D)tsunami.
Q4) The winds in a northern hemisphere cyclone spiral A)clockwise toward its center.
B)counterclockwise toward its center.
C)clockwise away from its center.
D)counterclockwise away from its center.
Page 16
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Chapter 15: The Rock Cycle
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Sample Questions
Q1) Most mechanical weathering is the result of A)the freezing of water in crevices in rock.
B)the growth of plant roots.
C)wave action.
D)rain.
Q2) The rapid cooling of lava on the earth's surface produces a rock characterized by A)fine mineral grains.
B)coarse mineral grains.
C)soft mineral grains.
D)foliation.
Q3) Most of the heat of the earth's interior is believed to A)com from solar radiation absorbed by the crust.
B)come from chemical reactions in the core. C)come from radioactive materials.
D)be left over from its formation.
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Chapter 16: The Evolving Earth
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Sample Questions
Q1) The leading explanation for the disappearance of the dinosaurs ascribes it to A)an Ice Age.
B)an asteroid impact.
C)solar ultraviolet radiation.
D)hunting by early humans.
Q2) Which of the following statements is in accord with present knowledge?
A)Coal and petroleum originated from plant matter from swamps.
B)Coal and petroleum originated from marine life such as algae and plankton.
C)Coal originated from plant matter and petroleum from marine life.
D)Coal originated from marine life and petroleum from plant matter.
Q3) The Himalayas are the result of
A)a giant volcanic eruption.
B)two oceanic plates colliding.
C)two continental plates colliding.
D)an oceanic and a continental plate colliding.
Q4) During the Pleistocene Epoch
A)ice sheets covered the entire earth.
B)there was a single period of widespread glaciation.
C)there were a number of periods of widespread glaciation.
D)all animal life became extinct and later began again.
Page 18
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Chapter 17: The Solar System
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Sample Questions
Q1) Meteors appear in the night sky
A)only during the spring and fall.
B)only during specific shower periods.
C)in approximately the same numbers every night.
D)every night, but more often during shower periods.
Q2) The surface of Jupiter's satellite Europa may be covered by A)vegetation.
B)metallic hydrogen.
C)the highest volcanoes in the solar system.
D)a layer of water ice floating on liquid water.
Q3) The planet with the longest day is A)Mercury.
B)Venus. C)Earth.
D)Mars.
Q4) A planet with no known satellites is A)Venus.
B)Jupiter.
C)Saturn. D)Uranus.
Page 19
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Chapter 18: The Stars
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Sample Questions
Q1) Which of the following can appear as disks with the help of a telescope?
A)planets
B)main-sequence stars
C)red giants
D)supernovas
Q2) The source of the sun's energy is
A)radioactivity.
B)nuclear fission.
C)nuclear fusion.
D)combustion.
Q3) At the end of its period in the main sequence, a star whose mass is near that of the sun
A)breaks up into several smaller stars.
B)cools down into a white dwarf.
C)expands into a red giant.
D)explodes into a supernova.
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Page 20
Chapter 19: The Universe
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Sample Questions
Q1) The sun is
A)a Population I star.
B)a Population II star.
C)different from Population I and II stars.
D)a member of a globular cluster.
Q2) All spiral galaxies apparently
A)are rotating.
B)are contracting.
C)are expanding.
D)consist entirely of Population II stars.
Q3) Globular clusters of stars
A)are uniformly distributed throughout the universe.
B)are uniformly distributed throughout our galaxy.
C)are located above and below the central disk of our galaxy.
D)are located in the central disk of our galaxy.
Q4) As they came into being, the planets were primarily heated by A)gravitational compression.
B)solar radiation.
C)cosmic rays.
D)cosmic background radiation.
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