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Download HPSC OBJ: Electrcity
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HONORS PHYSICAL SCIENCE OBJECTIVES Electricity and Magnetism Objectives: By the end of this unit, you should be able to do the following… Define electric charge and explain where it comes from Compare and contrast positive charge and negative charge Describe the behavior of a charge in the presence of other charges Compare and contrast the behavior of electrical conductors and electrical insulators based on their atomic structure Describe the following methods of charging an object: friction, contact/conduction Describe the separation of charges within neutral conductors to produce an induced charge Define electric force, including how the amount of electric force depends on charge and distance Describe an electric field Explain how field lines describe the electric field Define electric potential energy and explain how the amount of electric potential energy can change Define electric potential (voltage) and the SI unit used to measure it Describe how charges move and how their energy changes within a closed conducting path when that path contains a voltage source (battery) Define current and the SI unit used to measure it Describe the difference between direct current and alternating current Define resistance and the SI used to measure it Use Ohm’s Law to determine the current, voltage, or resistance for an electrical component Describe a closed electrical circuit and an open electrical circuit Describe a series electric circuit, including the voltage, current, and changes to both based on resistance Describe a parallel electric circuit, including the voltage, current, and changes to both based on resistance in the individual conducting paths Compare and contrast series and parallel circuits Describe the differences in the equivalent resistance of resistors connected in series and parallel. Describe a magnet Compare and contrast the north and south poles of a magnet Compare and contrast the pole of a magnet and electric charges Describe the magnetic field surrounding a bar magnet Explain how the magnetic field of the Earth resembles that of a bar magnet Explain how domains of magnetism within an object determine whether the entire object is magnetic Describe the magnetic field produced by a wire that is carrying current Explain how a solenoid results in an increased magnetic field Explain why a solenoid is sometimes called an electromagnet Briefly describe the operation of an electric motor Explain electromagnetic induction and Faraday’s Law Briefly describe the production of alternating current by a generator