Day#6

What is the purpose of a pushbutton in a circuit?

• To store power

• To give user input

• To light up on its own

• To charge the Arduino

What does the `digitalRead()` block do?

• Turns on an LED

• Reads whether a pin is HIGH or LOW

• Writes a number to the screen

• Charges the battery

What happens when a button is pressed in a basic circuit?

• Nothing changes

• The pin usually becomes HIGH

• The pin usually becomes LOW

• The LED automatically blinks

Which component is used to give ON/OFF control by hand?

• LED

• Resistor

• Pushbutton

• Wire

In block coding, where do you place the block to read the button state?

• Inside setup

• Inside loop (forever block)

• Before uploading

• Outside any block

If a button is NOT pressed, what state is usually read?

• HIGH

• LOW

• Float

• ON

Which block is used to turn on an LED in Tinkercad?

• `digitalRead`

• `delay`

• `digitalWrite (pin, HIGH)`

• `math block`

In block coding, what block type is used to make decisions like “if the button is pressed”?

• repeat block

• math block

• if block

• forever block

Which pin mode is used for a button (input device)?

• OUTPUT

• INPUT

• ANALOG

• LED

Which combination will turn ON the LED only when the button is pressed?

• If `digitalRead(pin) = HIGH`, then `digitalWrite(LED, HIGH)`

• If `digitalRead(pin) = LOW`, then `digitalWrite(LED, HIGH)`

• `digitalWrite(LED, LOW)`

• `digitalRead(LED)`