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1A battery is a device that converts chemical energy into electrical energy.
A)True
B)False


2Conductors have many free electrons.
A)True
B)False


3A compound is defined as a substance that cannot be decomposed any further by chemical action.
A)True
B)False


4Semiconductors have four electrons in the outermost ring.
A)True
B)False


5The basic unit of charge is the joule.
A)True
B)False


6A charge in motion is an electric voltage.
A)True
B)False


7A typical value of current in an electronic circuit is 5.0 A.
A)True
B)False


8Opposition which limits the amount of current that can be produced by the applied voltage is called resistance.
A)True
B)False


9The practical unit of resistance is the ohm.
A)True
B)False


10Electronic symbols for components and their electrical connections is known as a diagram.


11The resistance of a short circuit is approximately Ω.


12A motion of negative charges is considered current.


13The practical unit of is the ohm.


14The practical unit for is the siemens.


15A schematic shows only the for the components and their electrical connections.


16The resistance of a(n) circuit is considered to be infinite ohms.


17A motion of charges is considered conventional current.


18An atom that has either lost or gained one or more valence electrons to become electrically charged is a(n)
A)molecule
B)ion
C)electrolyte
D)joule


19What is the frequency of a waveform that alternates 60 cycles per second?
A)60 Hz
B)0.016 Hz
C)600 Hz
D)6 kHz


20What is produced when light strikes some materials and electrons are emitted?
A)optical coupling
B)laser
C)photoelectricity
D)hydroelectricity


21A popular test instrument used to measure voltage, current, or resistance is a(n)
A)oscilloscope
B)frequency counter
C)digital multimeter
D)logic probe


22Which of the following is not an insulator?
A)rubber
B)plastic
C)silver
D)glass


23A substance that cannot be decomposed any further by chemical action is a(n)
A)atom
B)element
C)ion
D)proton


24How many electrons are in a semiconductor's outermost ring?
A)1
B)2
C)3
D)4


25The basic unit of charge is the
A)joule
B)siemens
C)coulomb
D)maxwell





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