Essay Quiz


1		Explain why a balloon that has been rubbed sticks to a wall for a while.



2		Explain what is happening when you walk across a carpet and receive a shock when you touch a metal object.



3		Why does a positively or negatively charged object have multiples of the fundamental charge?



4		Explain how you know that it is an electric field, not electrons, that moves rapidly through a circuit.



5		Is a kWhr a unit of power or a unit of work? Explain.



6		What is the difference between ac and dc?



7		What is a magnetic pole? How are magnetic poles named?



8		How is an unmagnetized piece of iron different from the same piece of iron when it is magnetized?



9		Explain why the electric utility company increases the voltage of electricity for long-distance transmission.



10		Describe how an electric generator is able to generate an electric current.



11		Why does the north pole of a magnet point to the geographic North Pole if like poles repel?



12		Explain what causes an electron to move toward one end of a wire when the wire is moved across a magnetic field.

2002 McGraw-Hill Higher Education
Any use is subject to the Terms of Use and Privacy Policy.
McGraw-Hill Higher Education is one of the many fine businesses of The McGraw-Hill Companies.