Technology Interactions © 2007

Chapter 14: Electricity & Electronics

Self-Check Quiz

1.
At the atomic level, ionization involves
A)a transfer of neutrons and protons.
B)disruption of the innermost electron shell.
C)destabilization of the nucleus.
D)gain or loss of electrons.
2.
Outer-shell, or valence, electrons are
A)the least tightly held and the most likely to become free electrons.
B)completely neutral and stable.
C)the electrons with the least energy.
D)the electrons that are most tightly bound to the atomic nucleus.
3.
Difference in charges produce an electron-moving force called
A)resistance.
B)voltage.
C)current.
D)capacitance.
4.
Ohm's law defines the relationship involving current, voltage, and
A)resistance.
B)capacitance.
C)the load.
D)amplification.
5.
Unlike an insulator, a conductor
A)changes direct current into alternating current.
B)allows electron flow in one direction only.
C)blocks or partially blocks the flow of electrons.
D)allows electrons to flow easily.
6.
Which material is not a good conductor?
A)gold
B)silver
C)plastic
D)copper
7.
A generator converts mechanical energy, such as that of a spinning turbine, into
A)nuclear energy.
B)chemical energy.
C)electrical energy.
D)heat energy.
8.
A complete pathway through which electrons can flow is a(n)
A)static charge.
B)circuit.
C)insulator.
D)magnet.
9.
Which item in a circuit would qualify as the load?
A)bulb that lights up
B)battery
C)on/off switch
D)wire
10.
To learn in detail about transistors, diodes, and integrated circuits, you could sign up for a course on
A)electrical wiring in construction.
B)electronics.
C)atomic physics.
D)static electricity.
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