Recall & Review
beginner
What is an active buzzer?
An active buzzer has a built-in oscillator. It only needs power to produce sound. You just turn it on or off.
Click to reveal answer
beginner
What is a passive buzzer?
A passive buzzer does not have a built-in oscillator. It needs an external signal (like a square wave) to make sound.
Click to reveal answer
beginner
How do you control an active buzzer in Arduino?
You just send HIGH or LOW to the buzzer pin. HIGH turns it on, LOW turns it off.
Click to reveal answer
intermediate
How do you control a passive buzzer in Arduino?
You use PWM or tone() function to send a frequency signal. This makes the buzzer produce different sounds.
Click to reveal answer
beginner
What is the main difference between passive and active buzzers?
Active buzzers have a built-in sound generator and only need power. Passive buzzers need an external signal to create sound.
Click to reveal answer
Which buzzer type requires an external signal to produce sound?
✗ Incorrect
Passive buzzers need an external signal like PWM to create sound.
How do you turn on an active buzzer in Arduino?
✗ Incorrect
Active buzzers only need a HIGH signal to turn on.
Which function is commonly used to control a passive buzzer's sound frequency?
✗ Incorrect
The tone() function sends frequency signals to passive buzzers.
What does an active buzzer contain inside?
✗ Incorrect
Active buzzers have a built-in oscillator to generate sound.
If you want to play different tones with a buzzer, which type should you use?
✗ Incorrect
Passive buzzers can play different tones by changing the input signal frequency.
Explain the main difference between a passive and an active buzzer.
Think about what each buzzer needs to make sound.
You got /3 concepts.
Describe how you would control a passive buzzer using Arduino code.
Consider how to make different sounds with the buzzer.
You got /3 concepts.