Characteristic of a robot: programmable

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Quick Questions

Shade in the A or B circle for each question.

1. Which statement describes a programmable robot?

A It only moves when a person steers it all the time

B It follows a stored set of instructions

2. A factory robot arm welds car doors. The company wants it to weld boot lids instead. What is the best change?

A Reprogram it with new instructions

B Replace the whole robot with a new one

3. Where are a robot's instructions kept?

A In the robot's memory

B In the robot's sensors

4. A robot has all its parts but no program loaded. What can it do?

A Nothing useful, as it has no instructions to follow

B It works out its own tasks and starts them

5. Which one is following a program?

A A toy car steered by a person with a handset

B A robot vacuum cleaner that cleans a room by itself

Match the Pairs

Draw a line connecting each item on the left to its match on the right.

Left column		Right column
1programmable		ARemote control is not programming. The person decides each move live, and the car follows no stored instructions of its own.
2IF obstacle THEN turn ELSE move		BA programmable robot can be given a new program. You change the instructions, not the whole machine.
3Reprogramming a robot for a new task: load new instructions and the robot does a different job		Cmemory = empty -> robot action = none
4A robot with no program in memory has no instructions to follow, so it cannot do anything		DThe robot follows a stored set of instructions, and changing the program changes what the robot does
5A person steers a toy car with a handset, so it is a programmable robot		Eload program: paint_door -> load program: weld_frame
6To make a robot do a new task, you must build a new robot		FA stored instruction in the robot's memory that the robot follows by itself, without a human controlling each move

Definitions

programmable

Fill in the Blanks

Complete each line of code by filling in the missing parts.

______ ← ["FORWARD", "TURN", "STOP"]

program ← "weld" _______ ← "paint"

IF program = _____ THEN OUTPUT "No instructions" ENDIF

FOR EACH ____ IN program robot.do(step) NEXT

IF program _ EMPTY THEN robot.run(program) ENDIF

Spot the Error

Shade in the letter of the line that contains an error.

Question 1

A program ← "weld,move,weld"

B STORE program IN keyboard

C RUN program

Question 2

A IF memory = EMPTY THEN

B OUTPUT "No program"

C robot.run()

D ELSE

E robot.run()

F ENDIF

Question 3

A newProgram ← pack boxes

B LOAD newProgram INTO memory

C RUN newProgram

Question 4

A WHILE program NOT finished

B READ joystick

C robot.do(instruction)

D ENDWHILE

Question 5

A FOR i ← 1 UNTIL 3

B robot.move(10)

C NEXT i

Answer Key

Characteristic of a robot: programmable

Section A: Quick Questions

B — It follows a stored set of instructions

A — Reprogram it with new instructions

A — In the robot's memory

A — Nothing useful, as it has no instructions to follow

B — A robot vacuum cleaner that cleans a room by itself

Section B: Match the Pairs

programmable → The robot follows a stored set of instructions, and changing the program changes what the robot does

IF obstacle THEN turn ELSE move → A stored instruction in the robot's memory that the robot follows by itself, without a human controlling each move

Reprogramming a robot for a new task: load new instructions and the robot does a different job → load program: paint_door -> load program: weld_frame

A robot with no program in memory has no instructions to follow, so it cannot do anything → memory = empty -> robot action = none

A person steers a toy car with a handset, so it is a programmable robot → Remote control is not programming. The person decides each move live, and the car follows no stored instructions of its own.

To make a robot do a new task, you must build a new robot → A programmable robot can be given a new program. You change the instructions, not the whole machine.

Section C: Definitions

programmable — A robot is programmable: it follows a stored set of instructions, and changing the program changes what the robot does. With no program it cannot act.

Section D: Fill in the Blanks

memory ← ["FORWARD", "TURN", "STOP"]

program ← "weld"
program ← "paint"

IF program = EMPTY THEN
    OUTPUT "No instructions"
ENDIF

FOR EACH step IN program
    robot.do(step)
NEXT

IF program ≠ EMPTY THEN
    robot.run(program)
ENDIF

Section E: Spot the Error

B — A robot's instructions are stored in its memory, not in a keyboard. The line should be STORE program IN memory.

C — With no program in memory the robot cannot act. In the empty branch it should stop, so this should be robot.stop() and not robot.run().

A — The new task is text, so it must be in quotes: newProgram ← "pack boxes". Without quotes it is not a valid string.

B — A programmed robot reads the next stored instruction. Reading a joystick would be remote control. It should be READ next instruction.

A — A FOR loop uses the keyword TO for its range. It should be FOR i ← 1 TO 3 so the stored instruction repeats three times.