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02 Using LEDs (PICO)

Total questions: 13

Worksheet time: 7mins

Name
Class
Date
1.

What is the function of a breadboard in physical computing?

a)

To make solderless connections between electronic components

b)

To control the flow of current in the circuit

c)

To store data for the microcontroller

d)

To provide power to the circuit

2.

Which leg of an LED is the positive leg?

a)

The left leg

b)

The long leg

c)

The middle leg

d)

The short leg

3.

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

a)

To increase the brightness of the LED

b)

To control the voltage of the LED

c)

To limit the current flowing through the LED

d)

To change the color of the LED

4.

In the provided MicroPython code, what does the 'led.value(1)' line do?

a)

Flashes the LED

b)

Changes the color of the LED

c)

Turns off the LED

d)

Turns on the LED

5.

What happens when you decrease the SLEEP value in the MicroPython code?

a)

The LED changes color

b)

The LED flashes faster

c)

The LED flashes slower

d)

The LED becomes dimmer

6.

What is the purpose of the 'led1.toggle()' line in the provided MicroPython code?

a)

Changes the color of the first LED

b)

Turns off the first LED

c)

Turns on the first LED

d)

Toggles the state of the first LED

7.

What happens when you change each SLEEP value to different values in the provided code?

a)

The LEDs flash at different speeds

b)

The LEDs change color

c)

The LEDs flash at the same speed

d)

The LEDs turn off

8.

What is the main function of an LED?

a)

To emit light when current flows through it

b)

To store data for the microcontroller

c)

To control the flow of current in the circuit

d)

To provide power to the circuit

9.

What is the name of this components?

a)

Bulb

b)

Light Emitting Diode

c)

Resistor

d)

Sensor

10.

What is the most suitable use of this component?

a)

To increase electrical flow

b)

To keep a stable current

c)

To reduce electrical flow

d)

To make a circuit pretty

11.

Identify this component

a)

Arduino Uno board

b)

Raspberry Pi

c)

Breadboard / Protoboard

d)

White Plastic Board

12.

Where should the pin of the LED be connected to the microcontroller for the LED to light up?

a)

A: 5V

B: 3.3V

b)

A: Gnd

B: 5V

c)

A: Pin 5

B: 5V

d)

A: 3.3V

B: Gnd

13.

What does GPIO stand for?

a)

General Purpose Inner Outer Propeller

b)

General Purpose Input Output Pins

c)

General Purpose Interested Old People

d)

General Purpose Input Output Processor