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Worksheets

Electronic Circuits (Practical)

Total questions: 14

Worksheet time: 7mins

Name
Class
Date
1.

What does a breadboard help you do in a circuit?

a)

Solder components together

b)

Connect components without soldering

c)

Increase voltage

d)

Decrease current

2.

What is the role of the Arduino board in a circuit?

a)
The Arduino board is only for connecting sensors without processing data.
b)
The Arduino board serves as the central processing unit that controls and manages the components in a circuit.
c)
The Arduino board acts as a passive component in the circuit.
d)
The Arduino board is used solely for powering the circuit.
3.

Which function is used to send an output signal to the LED on the Arduino?

a)
digitalWrite()
b)
setLED()
c)
turnOnLED()
d)
writeDigital()
4.

What does the buzzer do in the ambulance siren circuit?

a)
The buzzer plays music to entertain patients.
b)
The buzzer indicates the ambulance is out of service.
c)
The buzzer controls the speed of the ambulance.
d)
The buzzer alerts others to the ambulance's presence.
5.

In the Arduino code, what does the pinMode() function do?

a)
The pinMode() function sets the mode of a specified pin to INPUT or OUTPUT.
b)
The pinMode() function sets the voltage level of a specified pin.
c)
The pinMode() function initializes the Arduino board.
d)
The pinMode() function reads the value of a specified pin.
6.

How does the push button work in a circuit?

a)
A push button increases voltage in a circuit.
b)
A push button acts as a resistor to limit current.
c)
A push button generates power for the circuit.
d)
A push button completes or breaks a circuit to control current flow.
7.

What is the purpose of a resistor in the pushbutton-LED circuit?

a)
To limit current and protect the LED.
b)
To amplify the signal from the pushbutton.
c)
To store electrical energy for later use.
d)
To increase the voltage across the LED.
8.

Which tool can be used to simulate circuits online, like the ones you built in class?

a)
Falstad Circuit Simulator
b)
CircuitLab
c)
Tinkercad Circuits
d)
EasyEDA
9.

How is the buzzer connected in the ambulance siren circuit?

a)

Directly to the 5V and GND pins

b)

To the LED

c)

To a digital pin and GND, controlled by the Arduino

d)

Through a resistor only

10.

What is the purpose of the delay() function in the Arduino code?

a)
To increase the speed of program execution.
b)
To reset the Arduino board.
c)
To read input from sensors.
d)
To pause program execution for a specified duration.
11.

Which of the following components was used in both circuits (ambulance siren and push button circuit)?

a)

Potentiometer

b)

Push button

c)

LED

d)

Capacitor

12.

In the pushbutton circuit, what happens when the button is pressed?

a)
The button lights up but does not complete the circuit.
b)
The button makes a sound without affecting the circuit.
c)
The circuit is completed, allowing current to flow.
d)
The circuit is interrupted, stopping current flow.
13.

How do you upload a program to the Arduino board?

a)

Write code on the breadboard

b)

Press the upload button in Arduino IDE

c)

Connect the push button

d)

Use the TinkerCAD simulator

14.

What would happen if you connected the LED directly to the Arduino without a resistor?

a)

The LED will blink faster

b)

The LED might burn out

c)

The LED will not turn on

d)

The Arduino will stop working