PHYSICAL SCIENCE (LCPO)12th EditionTillery Publisher: MCGISBN: 9781265774660
PHYSICAL SCIENCE (LCPO)
Solutions for PHYSICAL SCIENCE (LCPO)
Problem 1AC:
1. Electrostatic charge results from
a. transfer or redistribution of electrons.
b. gain or loss of...Problem 3AC:
3. An electric field describes the condition of space around
a. a charged particle.
b. a magnetic...Problem 4AC:
4. A material that has electrons that are free to move throughout the material is a (an)
a....Problem 5AC:
5. An example of an electrical insulator is
a. graphite.
b. glass.
c. aluminum.
d. tungsten.
Problem 6AC:
6. The electrical potential difference between two points in a circuit is measured in units of
a....Problem 7AC:
7. The rate at which an electric current flows through a circuit is measured in units of
a. volt.
b....Problem 8AC:
8. The law that predicts the behavior of electrostatic forces acting through space is
a. the law of...Problem 9AC:
9. What type of electric current is produced by fuel cells and solar cells?
a. ac
b. dc
c. 60 Hz
d....Problem 10AC:
10. The electrical resistance of a conductor is measured in units of
a. volt.
b. amp.
c. ohm.
d....Problem 11AC:
11. According to Ohm’s law, what must be greater to maintain the same current in a conductor with...Problem 12AC:
12. A kilowatt-hour is a unit of
a. power.
b. work.
c. current.
d. potential difference.
Problem 13AC:
13. If you multiply volts by amps, the answer will be in units of
a. power.
b. work.
c....Problem 14AC:
14. Units of joules per second are a measure called a (an)
a. volt.
b. amp.
c. ohm.
d. watt.
Problem 15AC:
15. A lodestone is a natural magnet that attracts
a. iron.
b. cobalt.
c. nickel.
d. all of the...Problem 16AC:
The north pole of a suspended or floating bar magnet currently points directly toward Earth's. a....Problem 17AC:
17. A current-carrying wire always has
a. a magnetic field with closed concentric field lines around...Problem 18AC:
18. Magnetism is produced by
a. an excess of north monopoles.
b. an excess of south monopoles.
c....Problem 19AC:
19. Earth's magnetic field
a. has undergone many reversals in polarity.
b. has always been as it is...Problem 20AC:
20. The strength of a magnetic field around a current-carrying wire varies directly with the
a....Problem 21AC:
21. Reverse the direction of a current in a wire, and the magnetic field around the wire will
a....Problem 22AC:
22. The operation of which of the following depends on the interaction between two magnetic...Problem 24AC:
When a loop of wire cuts across magnetic field lines or when magnetic field lines move across a loop...Problem 27AC:
27. Electric power companies step up the voltage of generated power for transmission across the...Problem 28AC:
28. A solar cell
a. produces electricity directly.
b. requires chemical reactions.
c. has a very...Problem 29AC:
29. Which of the following is most likely to acquire an electrostatic charge?
a. Electrical...Problem 30AC:
30. Which of the following units are measures of rates?
a. Amp and volt
b. Coulomb and joule
c. Volt...Problem 31AC:
31. You are using which description of a current if you consider a current to be positive charges...Problem 32AC:
32. In an electric current, the electrons are moving
a. at a very slow rate.
b. at the speed of...Problem 33AC:
33. In which of the following currents is there no electron movement from one end of a conducting...Problem 35AC:
35. A permanent magnet has magnetic properties because
a. the magnetic fields of its electrons are...Problem 36AC:
36. A current-carrying wire has a magnetic field around it because
a. a moving charge produces a...Problem 37AC:
37. When an object acquires a negative charge, it actually
a. gains mass.
b. loses mass.
c. has a...Problem 38AC:
38. A positive and a negative charge are initially 2 cm apart. What happens to the force on each as...Problem 39AC:
39. To be operational, a complete electric circuit must contain a source of energy, a device that...Problem 40AC:
40. Which variable is inversely proportional to the resistance?
a. Length of conductor
b....Problem 41AC:
41. Which of the following is not considered to have strong magnetic properties?
a. Iron
b....Problem 42AC:
42. A piece of iron can be magnetized or unmagnetized. This is explained by the idea that.
a....Problem 43AC:
43. Earth’s magnetic field is believed to originate.
a. by a separation of north and south monopoles...Problem 44AC:
44. Electromagnetic induction takes place because.
a. an electric current is measured by the rate of...Problem 45AC:
45. The current in the secondary coil of a transformer is produced by a
a. varying magnetic...Problem 46AC:
46. An electromagnet uses.
a. a magnetic field to produce an electric current.
b. an electric...Problem 47AC:
47. A transformer.
a. changes the voltage of a direct current.
b. changes the power of a direct...Problem 48AC:
48. A parallel circuit has
a. wires that are lined up side by side.
b. the same current flowing...Problem 49AC:
49. In which type of circuit would you expect a reduction of the available voltage as more and more...Problem 50AC:
50. In which type of circuit would you expect the same voltage with an increased current as more and...Problem 2QFT:
2. Explain what is happening when you walk across a carpet and receive a shock when you touch a...Problem 3QFT:
3. Why does a positively or negatively charged object have multiples of the fundamental charge?
Problem 4QFT:
4. Explain how you that it is an electric field, not electrons, that moves rapidly through a...Problem 5QFT:
5. Is a kWh a unit of power or a unit of work? Explain.
Problem 6QFT:
6. What is the difference between ac and dc?
Problem 8QFT:
8. How is an unmagnetized piece of iron different from the same piece of iron when it is...Problem 9QFT:
9. Explain why the electric utility company increases the voltage of electricity for long-distance...Problem 12QFT:
12. Explain what causes an electron to move toward one end of a wire when the wire is moved across a...Problem 1FFA:
1. Explain how the model of electricity as electrons moving along a wire is an oversimplification...Problem 2FFA:
2. What are the significant similarities and differences between ac and dc? What determines which is...Problem 3FFA:
3. Transformers usually have signs warning, “Danger–High Voltage.” Analyze if this is a...Problem 4FFA:
4. Will a fuel cell be the automobile engine of the future? Identify the facts, beliefs, and...Problem 5FFA:
5. Analyze the apparent contradiction in the statement that “solar energy is free” with the fact...Problem 6FFA:
6. What are the basic similarities and differences between an electric field and a magnetic field?
Problem 7FFA:
7. What are the advantages and disadvantages of using parallel circuits for household circuits?
Problem 1PEA:
A rubber balloon has become negatively charged from being rubbed with a wool cloth, and the charge...Problem 1PEB:
1. An inflated rubber balloon is rubbed with a wool cloth until an excess of a billion electrons is...Problem 2PEB:
2. What is the force between two balloons with a negative charge of 1.6 10–10 C if the balloons are...Problem 3PEB:
3. How much energy is available from a 12 V storage battery that can transfer a total charge...Problem 6PEB:
6. There is a current of 0.83 A through a lightbulb in a 120 V circuit. What is the resistance of...Problem 9PEB:
9. A lightbulb designed to operate in a 120.0 V circuit has a resistance of 192 . At what rate does...Problem 10PEB:
10. What is the monthly energy cost of leaving a 60 W bulb on continuously if electricity costs...Problem 11PEB:
11. An electric motor draws a current of 11.5 A in a 240 V circuit. What is the power of this motor...Problem 12PEB:
12. A swimming pool requiring a 2.0 hp motor to filter and circulate the water runs for 18 hours a...Problem 13PEB:
13. Is it possible for two people to simultaneously operate 1,300 W hair dryers on the same 120 V...Problem 14PEB:
14. A step-up transformer has a primary coil with 100 loops and a secondary coil with 1,500 loops....Problem 15PEB:
15. The step-down transformer in a local neighborhood reduces the voltage from a 7,200 V line to 120...Browse All Chapters of This Textbook
Chapter 1 - What Is Science?Chapter 2 - MotionChapter 3 - EnergyChapter 4 - Heat And TemperatureChapter 5 - Wave Motions And SoundChapter 6 - ElectricityChapter 7 - LightChapter 8 - Atoms And Periodic PropertiesChapter 9 - Chemical BondsChapter 10 - Chemical Reactions
Chapter 11 - Water And SolutionsChapter 12 - Organic ChemistryChapter 13 - Nuclear ReactionsChapter 14 - The UniverseChapter 15 - The Solar SystemChapter 16 - Earth In SpaceChapter 17 - Rocks And MineralsChapter 18 - Plate TectonicsChapter 19 - Building Earth’s SurfaceChapter 20 - Shaping Earth’s SurfaceChapter 21 - Geologic TimeChapter 22 - The Atmosphere Of EarthChapter 23 - Weather And ClimateChapter 24 - Earth’s Waters
Sample Solutions for this Textbook
We offer sample solutions for PHYSICAL SCIENCE (LCPO) homework problems. See examples below:
Chapter 1, Problem 1ACChapter 2, Problem 1ACChapter 3, Problem 1ACChapter 4, Problem 1ACReason for the correct options: The term vibration is used for the motion of a particle which...Chapter 6, Problem 1ACChapter 7, Problem 1ACIntroduction: J.J Thomson performed an experiment of cathode rays and observed the green...Introduction: The chemical substances which are composed of two or more atoms of different elements...
Introduction: There are a number of compounds in this world. In order to simplify the name of each...Chapter 11, Problem 1ACIntroduction: A class of compounds containing only carbon and hydrogen is known as hydrocarbons....Introduction: Radioactivity refers to the disintegration or the breaking of the unstable nucleus of...Chapter 14, Problem 1ACChapter 15, Problem 1ACChapter 16, Problem 1ACChapter 17, Problem 1ACChapter 18, Problem 1ACChapter 19, Problem 1ACChapter 20, Problem 1ACChapter 21, Problem 1ACChapter 22, Problem 1ACChapter 23, Problem 1ACChapter 24, Problem 1AC
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