Sensors Quiz EV3

Which EV3 sensor is best for detecting how far an object is from the robot?

• Color Sensor
• Touch Sensor
• Ultrasonic Sensor
• Gyro Sensor

What does the EV3 Color Sensor NOT do?

• Detect light intensity
• Identify colors
• Measure distance to object
• Follow a line

When the Touch Sensor is pressed, it sends a signal that can be used to:

• Change the robot's color
• Start or stop a program
• Tell the robot to speak
• Reset the battery

The Gyro Sensor is used to measure:

• Sound levels
• Color patterns
• Angular rotation and direction
• Surface texture

What happens when the EV3 Ultrasonic Sensor detects something very close?

• It stops measuring
• Turns on robot's light
• Gives a high distance
• Returns a small distance

Which of the following can the Color Sensor use to follow a line?

• Infrared signals
• Touch detection
• Reflected light intensity
• Magnetic field

Which sensor would you use to detect if your robot has hit a wall?

• Gyro Sensor
• Ultrasonic Sensor
• Color Sensor
• Touch Sensor

What is the purpose of pseudocode in programming?

• Write code in a real language

• Make hardware connections

• Plan logic in human-readable steps

• Test the robot's battery

What unit of measurement does the Ultrasonic Sensor use in EV3 programming?

• Degrees

• Millimeters

• Inches

• Centimeters

Which EV3 sensor would be most useful in a robot that follows a black line?

• Ultrasonic Sensor

• Touch Sensor

• Gyro Sensor

• Color Sensor