1.5 2 Karel Adventures 1 Quiz Answer Key

Scott Simon

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11-01-2025

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This document provides the answer key for the Karel the Robot Adventures 1 quiz. This quiz assesses understanding of basic programming concepts within the Karel environment. Please note: These answers assume a standard implementation of the Karel programming language and environment. Variations might exist depending on the specific software used.

Section 1: Multiple Choice

Instructions: Choose the best answer for each question.

1. What is the primary function of the move() command in Karel?

   • a) Turns Karel 90 degrees to the right.
   • b) Moves Karel one step forward.
   • c) Places a beeper on the current square.
   • d) Picks up a beeper from the current square.

2. Which command turns Karel 90 degrees to the left?

   • a) turn_right()
   • b) move()
   • c) turn_left()
   • d) put_beeper()

3. What is the purpose of the put_beeper() command?

   • a) Picks up a beeper from the current square.
   • b) Places a beeper on the current square.
   • c) Moves Karel one step forward.
   • d) Turns Karel 90 degrees to the left.

4. What command is used to check if there is a beeper present on Karel's current square?

   • a) front_is_clear()
   • b) beepers_present()
   • c) left_is_clear()
   • d) beepers_present()

5. Assuming Karel starts facing East, what will its orientation be after executing turn_left() followed by turn_right()?

   • a) North
   • b) South
   • c) East
   • d) West

Section 2: True or False

Instructions: Indicate whether each statement is true (T) or false (F).

1. Karel can move through walls. (F)
2. The pick_beeper() command will cause an error if there are no beepers present. (F) - It typically does not, instead it often simply does nothing.
3. Karel can only turn 90 degrees at a time. (T)
4. The front_is_clear() command returns true if there is a wall in front of Karel. (F)
5. A program is a sequence of commands that Karel executes. (T)

Section 3: Short Answer

Instructions: Answer the following questions concisely.

1. Explain the difference between pick_beeper() and put_beeper().

   • pick_beeper() removes a beeper from Karel's current location, while put_beeper() places a beeper there.

2. What does the front_is_clear() command do?

   • front_is_clear() checks if the square immediately in front of Karel is empty (no wall).

This answer key provides a foundation for understanding the Karel programming concepts covered in the quiz. Remember to consult your course materials for specific details and any variations in implementation.