WorksheetsDay#7
Total questions: 12
Worksheet time: 6mins
What type of sound does an active buzzer make?
Music
Beep sound without needing a tone signal
Requires tone() to work
No sound
Which function is used to play sound on a buzzer in Arduino code?
buzz()
playSound()
tone()
beep()
What does the tone(pin, frequency) function do?
Stops the sound
Plays a tone at given frequency
Lights an LED
Changes color
Which Arduino pins support PWM (needed for RGB LEDs)?
All digital pins
Only analog pins
Pins marked with ~ (tilde)
None
What is the range of PWM values in Arduino?
0–10
0–100
0–1023
0–255
An RGB LED has how many pins?
2
3
4
5
What is the purpose of resistors in an RGB LED circuit?
Increase brightness
Change color
Limit current to prevent damage
Turn off the LED
Which combination makes white in an RGB LED?
Red only
Green only
Red + Green + Blue
Blue only
To make the buzzer play sound continuously in blocks, we use:
If block
Repeat loop
Digital read
Serial print
In Tinkercad blocks, which values do we use for PWM output?
True or False
1 and 0
0 to 255
1024
What happens if all RGB pins are set to 0?
LED shows white
LED shows red
LED is off
LED blinks
Which pin on Arduino is commonly used for buzzer output?
Analog pin A0
GND
Any digital pin
RESET
