24-25 G5, 6 and 7_PS_LF

Neha’s robot is veering off the line during a race. What is the likely issue?

• The wheels are too large.

• The sensor is not properly calibrated.

• The motors are too big.

• The battery is low.

How can a delivery robot navigating a warehouse detect and handle turns on marked pathways?

• Use a Gyro Sensor to measure angular changes.

• Slow down and rely on time-based turns.

• Adjust motor power based on Color Sensor readings detecting the edge of the line.

• Use the Ultrasonic Sensor to sense turns ahead.

Priya wants her robot to stop when it detects the end of the line. What should she program?

• Use the Color Sensor to detect the absence of the line.

• Use the Ultrasonic Sensor.

• Program the robot to stop after a fixed time.

• Use the Gyro Sensor.

Ravi’s robot occasionally skips sections of the line. What adjustment should he make?

• Increase the speed.

• Change the wheels.

• Reduce the sensor sensitivity.

• Use a proportional (P) controller to smooth movements.

Riya is designing a robot for an automated checkout system that detects when a product is placed on a platform. What is the primary role of the EV3 Touch Sensor in this scenario?

• Detects light intensity changes.

• Measures the distance to nearby objects.

• Detects physical contact or pressure when the product is placed.

• Identifies the color of the product.

Neha is designing a robot for a warehouse that needs to navigate aisles with parallel lines marking different sections. How would using two Color Sensors improve the robot's line-following ability?

• To measure the distance between lines.

• To follow complex paths with multiple lines.

• To replace the Gyro Sensor.

• To increase robot speed.

Arjun is building a rescue robot to navigate a maze and avoid walls while reaching a trapped toy figure. Why might he choose the Ultrasonic Sensor for this task?

• To follow a line on the ground.

• To measure the robot’s speed.

• To detect and measure distances to walls and obstacles in the maze.

• To identify the colour of the toy figure.

Ravi is designing a robot to deliver medicines in a hospital, where it needs to navigate tight corners and small rooms. What is the advantage of using smaller wheels for this task?

• Increased speed.

• Better energy efficiency.

• Greater precision in turns.

• Reduced programming complexity.

Sana is programming a robot to transport tools across a factory floor in a straight line, but it occasionally drifts off-course. Why might this happen?

• Incorrect color sensor threshold.

• Unequal power distribution to motors.

• Improper Gyro Sensor placement.

• Large wheels.

During a school robotics competition, Liam’s robot is competing in a lap race. Suddenly, the robot stops in the middle of the track. What might be the cause of this unexpected halt?

• Sensor miscalibration

• Use of wrong sensors

• Use of more motors

• Oversized wheels