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Worksheets7th Grade PLTW Electronics Key Term Quiz
Total questions: 20
Worksheet time: 10mins
Name
Class
Date
1.
An electric current that reverses its direction many times a second at regular intervals, typically used in power supplies.
a)
Alternating Current
b)
Direct Current
c)
Indirect current
d)
Wavy Current
2.
A container consisting of one or more cells, in which chemical energy is converted into electricity and used as a source of power.
a)
Jar
b)
Battery
c)
Motor
d)
Lamp
3.
A device used to store an electrical charge.
a)
Capacitor
b)
Thermistor
c)
Resistor
d)
Switch
4.
A graphical representation of an electrical circuit (pictures of components)
a)
Circuit Diagram
b)
Electronic Circut
c)
Schematic
d)
Symbol
5.
A part or piece of a larger device/machine
a)
Module
b)
Element
c)
Component
d)
Sector
6.
A two-terminal electronic component that conducts current in only one direction.
a)
Diode
b)
Light Emitting Diode
c)
Transistor
d)
Resistor
7.
An electric current that flows in only one direction.
a)
Direct Current
b)
Indirect Current
c)
Alternating Current
d)
Electron Current
8.
A group of electronic components that work together to perform a specific function.
a)
Closed Circuit
b)
Open Circuit
c)
Electronic Circuit
d)
Parallel Circuit
9.
A resistor that has a value that cannot be changed.
a)
Fixed Resistor
b)
Variable Resistor
c)
Thermistor
d)
Transistor
10.
A semiconductor diode which glows when current is applied.
a)
Diode
b)
Light Emitting Diode
c)
Transistor
d)
Resistor
11.
The design or production of very small machines or structures.
a)
Nanotechnology
b)
Plasmatech
c)
Atomic Mutation
d)
Microengineering
12.
The SI (metric) unit of electrical resistance.
a)
Volt (V)
b)
Voltage
c)
Ohm
d)
Current
13.
A circuit that contains more than one path for current flow.
a)
Closed Circuit
b)
Series Circuit
c)
Electronic Circuit
d)
Parallel Circuit
14.
A device used to introduce some amount of resistance into a circuit.
a)
Resistor
b)
Switch
c)
Transistor
d)
Motor
15.
A circuit that contains only one path for current flow.
a)
Closed Circuit
b)
Series Circuit
c)
Electronic Circuit
d)
Parallel Circuit
16.
A mechanical device for making and breaking the connection in a circuit
a)
Switch
b)
Lamp
c)
Terminals
d)
Transformer
17.
A device for reducing or increasing the voltage of an AC (alternating current) circuit.
a)
Switch
b)
Lamp
c)
Terminals
d)
Transformer
18.
A resistor whose value can be varied between its minimum and maximum values.
a)
Fixed Resistor
b)
Variable Resistor
c)
Thermistor
d)
Transistor
19.
The SI unit of electromotive force
a)
Volt (V)
b)
Voltage
c)
Ohm
d)
Current
20.
The pressure from an electrical circuits power source that pushes electrons (current) through a conductor
a)
Volt (V)
b)
Voltage
c)
Ohm
d)
Current
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