Week 22 Quiz

Advanced Robot Behaviors and State Machines

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Quiz Questions

1. What is a state machine in robotics?

A) A machine that creates different states of matter B) A way to organize robot behavior into different modes or states C) A type of motor for robot movement D) A sensor that detects the robot's current state

2. Which of these is NOT a benefit of using state machines?

A) Makes robot behavior easier to understand B) Makes the robot move faster C) Makes it easier to add new behaviors D) Makes robot behavior more predictable

3. What is a state transition?

A) When the robot moves from one location to another B) When the robot switches from one behavior state to another C) When the robot's battery changes from charged to discharged D) When the robot turns on or off

4. In the code example, what does the "switch" statement do?

A) Turns the robot on and off B) Executes different code based on the current state C) Changes the robot's speed D) Switches between different sensors

5. Which real-world example uses state machines?

A) Traffic lights (Red → Yellow → Green) B) Washing machines (Fill → Wash → Rinse → Spin) C) Video games (Menu → Playing → Paused) D) All of the above

6. What should happen when a robot's battery is low in any state?

A) Continue current behavior B) Transition to RETURNING or CHARGING state C) Move faster to conserve energy D) Turn off all sensors

7. In the exploring robot example, when should it transition from EXPLORING to AVOIDING?

A) When it has been exploring for 10 minutes B) When an obstacle is detected nearby C) When the robot gets tired D) When it finds something interesting

8. What is the purpose of the "enum" in the state machine code?

A) To count the number of states B) To create named constants for each state C) To make the robot move in different directions D) To control the robot's speed

9. Design a simple 3-state machine for a robot security guard. Name the three states and describe when the robot should transition between them. (Short Answer)

10. Explain why state machines make robot programming easier compared to writing one long program without states. Give at least two specific reasons. (Short Answer)

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