Digital electronics 6th Arduino

How can you identify the positive side of an LED in TinkerCad?

• By its color

• The bent terminal is positive

• The straight terminal is positive

• It does not matter

What is the function of a resistor in the circuit?

• To increase the brightness of the LED

• To change the color of the LED

• To control the flow of electric current and prevent damage

• To store electrical energy

What is the purpose of a photoresistor in a circuit?

• To turn the circuit on and off

• To measure light levels

• To increase the brightness of an LED

• To control temperature

How does a photoresistor work?

• It changes resistance based on temperature

• It changes resistance based on light levels

• It generates electricity

• It stores energy

What does an Arduino board do?

• Stores electrical energy

• Controls and programs electronic components

• Increases voltage

• Measures temperature

Which component is responsible for blinking in the LED circuit?

• The resistor

• The photoresistor

• The Arduino

• The battery

What are the two main types of signals an Arduino can use?

• Low and high

• On and off

• Digital and analog

• Fast and slow

True or False: An LED has polarity, meaning it has a positive side and a negative side.

• True

• False

Which electronic component does NOT have polarity?

• LED

• Resistor

• Arduino Uno