Grade 8 Adv IC practical

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Multiple Choice

What component provides energy to a circuit?

• a) Bulb

• b) Battery

• c) Switch

• d) Wire

Multiple Choice

Which component produces sound in a circuit?

• a) Motor

• b) Buzzer

• c) Diode

• d) Resistor

Multiple Choice

Which device protects the circuit by melting when current is too high?

• a) Resistor

• b) Fuse

• c) Diode

• 1.d) Wire

Multiple Choice

What does a potentiometer allow you to do?

• a) Convert electricity to sound

• b) Adjust resistance

• c) Create a short circuit

• 1.d) Stop current completely

Multiple Choice

What is the function of a diode in reverse bias?

• a) Conduct current

• b) Block current

• c) Store current

• d) Overheat

Multiple Choice

What process uses diodes to convert AC to DC?

• a) Amplification

• b) Rectification

• c) Dimming

• 1.d) Switching

Multiple Choice

Which are the three terminals of a BJT transistor?

• a) Anode, Cathode, Gate

• b) Base, Collector, Emitter

• c) Input, Output, Ground

• 1.d) Positive, Negative, Neutral

Multiple Choice

What is the function of a transistor in amplification mode?

• a) Block current

• b) Reduce signal

• c) Increase signal

• 1.d) Convert light to current

Multiple Choice

What is a 555 Timer mainly used for?

• ) Lighting circuits

• 
  b) Time delays and pulses

• c) Sound generation

• d) Current conversion

Multiple Choice

What is a use of the 741 operational amplifier?

• What is a use of the 741 operational amplifier?

• b) Displaying light

• c) Signal amplification

• d) Cooling circuits

Open Ended

🎯 Reflection Prompts (Quick oral or pair-share):

•“Which of today’s components have you used before?”

•

Open Ended

🎯 Reflection Prompts (Quick oral or pair-share):

•“What’s the difference between a diode and a transistor?”

•“How would a potentiometer be useful in a dimmer switch?”

•

Open Ended

🎯 Reflection Prompts (Quick oral or pair-share):

•“How would a potentiometer be useful in a dimmer switch?”

•

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