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Worksheets

Electronic Circuits

Total questions: 20

Worksheet time: 10mins

Name
Class
Date
1.

What is the difference between an electrical and an electronic circuit?

a)

Electrical circuits use resistors, electronic circuits do not

b)

Electrical circuits use current, electronic circuits use energy

c)

Electrical circuits use large components, electronic circuits use small components

d)

Electrical circuits control electricity, electronic circuits control signals

2.

What is a key component of an electronic circuit?

a)

Lightbulb

b)

Switch

c)

Capacitor

d)

Wire

3.

Which component is used to limit the flow of electrical current in a circuit?

a)

Resistor

b)

Motor

c)

Battery

d)

LED

4.

What does LED stand for?

a)

Light Electrical Device

b)

Light Emitting Diode

c)

Low Energy Diode

d)

Long-lasting Electric Device

5.

What happens if you connect an LED the wrong way in a circuit?

a)

It will work normally

b)

It won’t light up

c)

It will burn out immediately

d)

It will blink faster

6.

Which of the following is a basic component in both electrical and electronic circuits?

a)

Transistor

b)

Battery

c)

Capacitor

d)

Potentiometer

7.

In an electronic circuit, what does a capacitor do?

a)
A capacitor measures electrical resistance.
b)
A capacitor stores and releases electrical energy.
c)
A capacitor amplifies electrical signals.
d)
A capacitor converts AC to DC.
8.

What is the purpose of a switch in a circuit?

a)
To convert AC to DC in a circuit.
b)
To store electrical energy for later use.
c)
To increase the voltage in a circuit.
d)
To control the flow of electricity in a circuit.
9.

What does the microcontroller on the Arduino board do?

a)
The microcontroller connects the board to the internet.
b)
The microcontroller executes programmed instructions and controls inputs/outputs.
c)
The microcontroller is used for storing data only.
d)
The microcontroller only powers the board.
10.

Which of the following is the programming language used to program the Arduino?

a)
Python
b)
C/C++
c)
Java
d)
JavaScript
11.

On which website can you simulate an Arduino circuit to blink an LED?

a)
Tinkercad
b)
CircuitLab
c)
Arduino IDE
d)
Fritzing
12.

What function makes an LED blink in Arduino code?

a)
pinMode() and sleep()
b)
digitalRead() and pause()
c)
analogWrite() and wait()
d)
digitalWrite() and delay()
13.

Which pin on the Arduino is commonly used to control an LED?

a)
Pin 13
b)
Pin 2
c)
Pin 5
d)
Pin 10
14.

In the Arduino code, what does delay(1000) do?

a)
delay(1000) pauses the program for 1 second.
b)
delay(1000) sets a timer for 1 second without pausing.
c)
delay(1000) turns off the Arduino for 1 second.
d)
delay(1000) increases the speed of the program.
15.

Which of these is a correct step for blinking an LED in TinkerCAD with Arduino?

a)
Set the LED pin as INPUT in the setup() function.
b)
Call the digitalWrite function before the pinMode function.
c)
Set the LED pin as OUTPUT in the setup() function.
d)
Use a resistor to connect the LED directly to ground.
16.

What is the function of a breadboard in an electronic circuit?

a)
To permanently connect components in a circuit.
b)
To measure voltage and current in a circuit.
c)
To store electrical energy for later use.
d)

for prototyping and testing circuits without soldering.

17.

What is the purpose of a resistor in an Arduino LED circuit?

a)
To increase the brightness of the LED.
b)
To connect the LED directly to the power source.
c)
To act as a switch for the LED.
d)
To limit current and protect the LED from damage.
18.

Which tool do you use to write code for an Arduino?

a)
Arduino IDE
b)
Notepad++
c)
Eclipse
d)
Visual Studio
19.

How do you power an Arduino board?

a)
Power an Arduino board with a car battery.
b)
Power an Arduino board using a standard wall outlet.
c)
Power an Arduino board via USB, barrel jack, VIN pin, or 5V pin.
d)
Power an Arduino board through an HDMI port.
20.

In a simple blinking LED project, what happens if you remove the resistor?

a)
The LED may burn out due to excessive current.
b)
The LED will shine brighter without the resistor.
c)
The circuit will stop working entirely.
d)
The LED will blink faster without the resistor.