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PLTW Practice II

Multiple Choice
Identify the letter of the choice that best completes the statement or answers the question.
 

 1. 

In order to function, each electrical loop (or circuit) requires
a.
voltage, current, resistance
c.
source, path, switch, load
b.
power, watts, capacitance, inductance
d.
proton, neutron, electron
 

 2. 

A Resistor having a color code of Red, Red, Brown, Silver is rated at how many ohms resistance?
a.
20000 ohms
c.
22 ohms
b.
220000 ohms
d.
220 ohms
 

 3. 

An insulator has ______ electrons in its valence shell and ________ allow electricity to flow through it.
a.
0-3/will not
c.
0-3/will
b.
5-8/will
d.
5-8/will not
 

 4. 

An conductor has ______ electrons in its valence shell and ________ allow electricity to flow through it.
a.
0-3/will not
c.
0-3/will
b.
5-8/will
d.
5-8/will not
 

 5. 

A semiconductor typically has _________ electrons in the valence shell
a.
1
c.
4
b.
2
d.
8
 

 6. 

The digital multi-meter you have used in the lab will measure the following:
a.
Voltage, Current, Resistance
c.
Voltage, Current, Watts
b.
Voltage, Watts, Resistance
d.
Watts, Current, Resistance
 

 7. 

Batteries will typically provide what type of current?
a.
Amps
c.
Digital
b.
Alternating
d.
Direct
 

 8. 

Generators will typically provide what type of current?
a.
Amps
c.
Digital
b.
Alternating
d.
Direct
 

 9. 

A parallel circuit is one in which
a.
there is only one path through the circuit
c.
there is no path through the circuit
b.
there are multiple paths through the circuit
d.
None of above
 

 10. 

A series circuit is one in which
a.
there is only one path through the circuit
c.
there is no path through the circuit
b.
there are multiple paths through the circuit
d.
None of above
 

 11. 

An open circuit is one in which
a.
there is only one path through the circuit
c.
there is no path through the circuit
b.
there are multiple paths through the circuit
d.
None of the above
 

 12. 

An closed circuit is one in which
a.
there is a closed path through the circuit
c.
there is no path through the circuit
b.
there is an unclosed path through the circuit
d.
None of the above
 

 13. 

In the following circuit use Ohm’s Law to find the voltage
pltw_practice_ii_files/i0140000.jpg
a.
E = 1.2V
c.
E=  120 V
b.
E=  12V
d.
E=  1.2KV
 

 14. 

In the following circuit use Ohm’s Law to find the voltage
pltw_practice_ii_files/i0150000.jpg
a.
E = 1.2V
c.
E=  120 V
b.
E=  12V
d.
E=  1.2KV
 

 15. 

In the following circuit use Ohm’s Law to find the voltage
pltw_practice_ii_files/i0160000.jpg
a.
E = 1.2V
c.
E=  120 V
b.
E=  12V
d.
E=  1.2KV
 



 
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