UNIT 1
Digital principles system design
1.
basic electronics crossword puzzle game Hints
1.
2.
3.
4.
5.
6.
7.
8.
Is the flow of electrical energy through some conductive material.
Is a measure of the magnitude of the flow of electrons in a circuit. It is measured in Amperes, or Amps.
Many people explain electrical flow by using water flow as an analogy.
Is a measure of the electrical energy of a circuit. It is measured in Volts. In the water analogy, it would be
the water pressure.
Is a measure of a material's ability to oppose the flow of electricity. It is measured in Ohms.
Is a closed loop containing a source of electrical energy (like a battery) and a load (like a light bulb).
Is a construction base for a one-of-a-kind electronic circuit, a prototype. Doesn't need soldering.
A semiconductor diode that emits light when conducting current and is used in electronic equipment,
especially for displaying readings on digital watches, calculators, etc.
It is a simple electro-mechanical transducer. It converts rotary or linear motion from the operator into a
change of resistance, and this change is (or can be) used to control anything from the volume of a hi-fi
system to the direction of a huge container
2.
Circuits crossword puzzle game Hints
1.
2.
3.
4.
5.
6.
7.
8.
9.
a small container with a positive and negative end that produces energy.
a pathway that allows electrical current to flow from a power source and back again.
(circuit) a circuit with no breaks or interruptions (allows electricity to move).
a circuit with a break in it (stops electricity from moving).
(circuit) a circuit where different parts of the circuit are on separate.
(circuit) a basic circuit consisting of three elements: a conductor, a load (object using electricity), and an
energy source.
material that permits electric charge.
material that does not permit electrical charge.
continuous flow of electrons.
10. a device that can open or close an electric circuit.
11. a measure of how well a given material will conduct electricity.
12. a battery that changes chemical energy into electrical energy.
3. Find and circle all of the Electronics related terms that are hidden in the grid. The remaining letters spell the name of a
common electronic component.
AMPERE
ANALOG
ANODE
CAPACITOR
CATHODE
CELLS
CHIP
CIRCUIT
CONDUCTOR
CONTACTS
4.
ALTERNATOR
ANODE
ARMATURE
BATTERY
CAPACITOR
CATHODE
CHARGER
CIRCUIT BREAKER
COIL
COMPENSATOR
CONDENSER
DISTRIBUTOR
DYNAMO
ELECTRODE
CURRENT
DIGITAL
DIODE
ELECTRICITY
ELECTRODE
ELECTRON
FARADS
FLUX
GATE
IMPEDANCE
INDUCTANCE
INSULATORS
LEAD
NEGATIVE
OHMS
POSITIVE
POWER
RESISTANCE
RESISTOR
SILICON
SOLDER
SWITCHES
THYRISTOR
TINNING
TRANSFORMER
TRANSISTOR
VACUUM TUBE
VOLTAGE
WATT
WIRE
ELECTROLYTIC
ELECTROSCOPE
ELECTROSTATIC
FUSE
GALVANOSCOPE
GENERATOR
GROUND
INDUCTOR
INSULATOR
JUMPER
LIGHTNING ROD
MAGNET
OSCILLATOR
OSCILLOSCOPE
OUTLET
PLUG
PUSH BUTTON
RECTIFIER
RELAY
RESISTOR
RHEOSTAT
SOCKET
SPARK PLUG
TERMINAL
TIMER
TRANSFORMER
TRICKLE CHARGER
VOLTAGE REGULATOR
5 Find the hidden word.
6.. Guess the missing words.
7.
8.
9.
10.
11.
12.Fill the checks.
13..
14. Which is the DIAC?
a)
b)
c)
d)
15.PN junction diode acts as ----------------?
CLUE: Rectifiers
16. A decoder converts ________.
A.
noncoded information into coded form
B.
coded information into noncoded form
C.
HIGHs to LOWs
D.
LOWs to HIGHs
17. A DAC changes ________.
A.
an analog signal into digital data
B.
digital data into an analog signal
C.
digital data into an amplified signal
D.
none of the above
18. The output of a NOT gate is HIGH when ________.
A.
the input is LOW
B.
the input is HIGH
C.
the input changes from LOW to HIGH
D.
voltage is removed from the gate
19. The output of an OR gate is LOW when ________.
A.
all inputs are LOW
B.
any input is LOW
C.
any input is HIGH
D.
all inputs are HIGH
20. Which of the following is not an analog device?
A.
Thermocouple
B.
Current flow in a circuit
C.
Light switch
D.
Audio microphone