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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 233 · 40 questions
TalentJR

Robot tip (Repeat the side): repeat n { forward s; turn right A° } drives n sides: distance = n × s. A closed regular shape needs n × A = 360°, so A = 360 ÷ n. Rectangle: repeat 2 { forward a; turn 90°; forward b; turn 90° } → perimeter 2 × (a + b), area a × b.

NameDateTime takenScore ___ / 40
  1. 1.🔁 A drawing robot runs:
    repeat 3 { forward 20 cm; turn right 120° }
    Which shape does it draw?     (a) triangle (b) square (c) octagon (d) hexagon
  2. 2.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 30 cm; turn right ?° }
    What number goes in place of “?”
  3. 3.🔁 A drawing robot runs:
    repeat 3 { forward 10 cm; turn right 120° }
    Which shape does it draw?     (a) hexagon (b) square (c) triangle (d) pentagon
  4. 4.🔁 A drawing robot runs:
    repeat 8 { forward 60 cm; turn right 45° }
    Which shape does it draw?     (a) hexagon (b) pentagon (c) square (d) octagon
  5. 5.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 20 cm; turn right ?° }
    What number goes in place of “?”
  6. 6.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 55 cm; turn right ?° }
    What number goes in place of “?”
  7. 7.🔁 A drawing robot runs:
    repeat 2 { forward 60 cm; turn right 90°; forward 50 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  8. 8.🔁 A drawing robot runs:
    repeat 8 { forward 60 cm; turn right 45° }
    How many cm does it drive in all?
  9. 9.🔁 A drawing robot runs:
    repeat 2 { forward 40 cm; turn right 90°; forward 20 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  10. 10.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 85 cm; turn right ?° }
    What number goes in place of “?”
  11. 11.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 90 cm; turn right ?° }
    What number goes in place of “?”
  12. 12.🔁 A drawing robot runs:
    repeat 8 { forward 20 cm; turn right 45° }
    Which shape does it draw?     (a) triangle (b) octagon (c) hexagon (d) square
  13. 13.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 10 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  14. 14.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 65 cm; turn right ?° }
    What number goes in place of “?”
  15. 15.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 20 cm; turn right ?° }
    What number goes in place of “?”
  16. 16.🔁 A drawing robot runs:
    repeat 4 { forward 40 cm; turn right 90° }
    Which shape does it draw?     (a) square (b) triangle (c) octagon (d) pentagon
  17. 17.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 35 cm; turn right ?° }
    What number goes in place of “?”
  18. 18.🔁 A drawing robot runs:
    repeat 6 { forward 40 cm; turn right 60° }
    How many cm does it drive in all?
  19. 19.🔁 A drawing robot runs:
    repeat 3 { forward 55 cm; turn right 120° }
    Which shape does it draw?     (a) pentagon (b) square (c) triangle (d) hexagon
  20. 20.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 70 cm; turn right ?° }
    What number goes in place of “?”
  21. 21.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  22. 22.🔁 A drawing robot runs:
    repeat 4 { forward 25 cm; turn right 90° }
    Which shape does it draw?     (a) pentagon (b) square (c) octagon (d) hexagon
  23. 23.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 10 cm; turn right ?° }
    What number goes in place of “?”
  24. 24.🔁 Why do we use a loop to draw a square? (a) squares need 5 sides (b) to make it crash (c) the same steps repeat (d) loops are colourful
  25. 25.🔁 A drawing robot runs:
    repeat 2 { forward 35 cm; turn right 90°; forward 30 cm; turn right 90° }
    How many cm does it drive in all?
  26. 26.🔁 How many sides does a hexagon have? (a) 8 (b) 7 (c) 6 (d) 5
  27. 27.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  28. 28.🔁 A drawing robot runs:
    repeat 8 { forward 100 cm; turn right 45° }
    Which shape does it draw?     (a) square (b) triangle (c) pentagon (d) octagon
  29. 29.🔁 A drawing robot runs:
    repeat 2 { forward 10 cm; turn right 90°; forward 60 cm; turn right 90° }
    How many cm does it drive in all?
  30. 30.🔁 For a regular shape with n sides, each turn is … (a) 90 degrees always (b) 180 degrees always (c) n × 360 degrees (d) 360 ÷ n degrees
  31. 31.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  32. 32.🔁 A drawing robot runs:
    repeat 8 { forward 45 cm; turn right 45° }
    How many cm does it drive in all?
  33. 33.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 75 cm; turn right ?° }
    What number goes in place of “?”
  34. 34.🔁 A drawing robot runs:
    repeat 3 { forward 15 cm; turn right 120° }
    Which shape does it draw?     (a) hexagon (b) pentagon (c) square (d) triangle
  35. 35.🔁 A drawing robot runs:
    repeat 3 { forward 80 cm; turn right 120° }
    Which shape does it draw?     (a) square (b) hexagon (c) pentagon (d) triangle
  36. 36.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  37. 37.🔁 A drawing robot runs:
    repeat 4 { forward 10 cm; turn right 90° }
    Which shape does it draw?     (a) triangle (b) pentagon (c) square (d) hexagon
  38. 38.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  39. 39.🔁 A drawing robot runs:
    repeat 4 { forward 55 cm; turn right 90° }
    How many cm does it drive in all?
  40. 40.🔁 A drawing robot runs:
    repeat 4 { forward 20 cm; turn right 90° }
    Which shape does it draw?     (a) hexagon (b) triangle (c) square (d) pentagon

Answer key

  1. triangle
  2. 90
  3. triangle
  4. octagon
  5. 120
  6. 72
  7. 3000
  8. 480
  9. 800
  10. 90
  11. 45
  12. octagon
  13. 200
  14. 90
  15. 90
  16. square
  17. 120
  18. 240
  19. triangle
  20. 45
  21. 80
  22. square
  23. 90
  24. the same steps repeat
  25. 130
  26. 6
  27. 240
  28. octagon
  29. 140
  30. 360 ÷ n degrees
  31. 200
  32. 360
  33. 45
  34. triangle
  35. triangle
  36. 180
  37. square
  38. 160
  39. 220
  40. square

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