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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 38 · 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.🔁 Why do we use a loop to draw a square? (a) loops are colourful (b) squares need 5 sides (c) the same steps repeat (d) to make it crash
  2. 2.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 100 cm; turn right ?° }
    What number goes in place of “?”
  3. 3.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 60 cm; turn right ?° }
    What number goes in place of “?”
  4. 4.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  5. 5.🔁 A drawing robot runs:
    repeat 5 { forward 95 cm; turn right 72° }
    Which shape does it draw?     (a) hexagon (b) pentagon (c) triangle (d) square
  6. 6.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 45 cm; turn right ?° }
    What number goes in place of “?”
  7. 7.🔁 A drawing robot runs:
    repeat 2 { forward 35 cm; turn right 90°; forward 20 cm; turn right 90° }
    How many cm does it drive in all?
  8. 8.🔁 How many sides does a hexagon have? (a) 5 (b) 7 (c) 8 (d) 6
  9. 9.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  10. 10.🔁 A drawing robot runs:
    repeat 4 { forward 25 cm; turn right 90° }
    Which shape does it draw?     (a) octagon (b) hexagon (c) square (d) pentagon
  11. 11.🔁 A drawing robot runs:
    repeat 2 { forward 50 cm; turn right 90°; forward 10 cm; turn right 90° }
    How many cm does it drive in all?
  12. 12.🔁 A drawing robot runs:
    repeat 3 { forward 65 cm; turn right 120° }
    Which shape does it draw?     (a) octagon (b) triangle (c) pentagon (d) square
  13. 13.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  14. 14.🔁 A drawing robot runs:
    repeat 3 { forward 15 cm; turn right 120° }
    How many cm does it drive in all?
  15. 15.🔁 A drawing robot runs:
    repeat 4 { forward 55 cm; turn right 90° }
    How many cm does it drive in all?
  16. 16.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  17. 17.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  18. 18.🔁 A drawing robot runs:
    repeat 4 { forward 80 cm; turn right 90° }
    How many cm does it drive in all?
  19. 19.🔁 A drawing robot runs:
    repeat 5 { forward 75 cm; turn right 72° }
    How many cm does it drive in all?
  20. 20.🔁 A drawing robot runs:
    repeat 8 { forward 10 cm; turn right 45° }
    Which shape does it draw?     (a) pentagon (b) hexagon (c) octagon (d) square
  21. 21.🔁 A drawing robot runs:
    repeat 3 { forward 80 cm; turn right 120° }
    How many cm does it drive in all?
  22. 22.🔁 A drawing robot runs:
    repeat 6 { forward 35 cm; turn right 60° }
    Which shape does it draw?     (a) octagon (b) triangle (c) square (d) hexagon
  23. 23.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  24. 24.🔁 For a regular shape with n sides, each turn is … (a) 90 degrees always (b) n × 360 degrees (c) 360 ÷ n degrees (d) 180 degrees always
  25. 25.🔁 A drawing robot runs:
    repeat 6 { forward 55 cm; turn right 60° }
    Which shape does it draw?     (a) triangle (b) hexagon (c) pentagon (d) square
  26. 26.🔁 A robot must draw a regular pentagon (5 equal sides):
    repeat 5 { forward 60 cm; turn right ?° }
    What number goes in place of “?”
  27. 27.🔁 A drawing robot runs:
    repeat 8 { forward 100 cm; turn right 45° }
    How many cm does it drive in all?
  28. 28.🔁 A drawing robot runs:
    repeat 4 { forward 95 cm; turn right 90° }
    How many cm does it drive in all?
  29. 29.🔁 A drawing robot runs:
    repeat 2 { forward 25 cm; turn right 90°; forward 15 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  30. 30.🔁 A drawing robot runs:
    repeat 5 { forward 35 cm; turn right 72° }
    Which shape does it draw?     (a) octagon (b) pentagon (c) triangle (d) square
  31. 31.🔁 A drawing robot runs:
    repeat 4 { forward 45 cm; turn right 90° }
    Which shape does it draw?     (a) hexagon (b) pentagon (c) triangle (d) square
  32. 32.🔁 A drawing robot runs:
    repeat 5 { forward 30 cm; turn right 72° }
    How many cm does it drive in all?
  33. 33.🔁 A drawing robot runs:
    repeat 3 { forward 80 cm; turn right 120° }
    Which shape does it draw?     (a) pentagon (b) square (c) octagon (d) triangle
  34. 34.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  35. 35.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  36. 36.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  37. 37.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  38. 38.🔁 A drawing robot runs:
    repeat 3 { forward 90 cm; turn right 120° }
    Which shape does it draw?     (a) square (b) hexagon (c) triangle (d) octagon
  39. 39.🔁 A drawing robot runs:
    repeat 3 { forward 60 cm; turn right 120° }
    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) pentagon (b) octagon (c) hexagon (d) square

Answer key

  1. the same steps repeat
  2. 72
  3. 90
  4. 180
  5. pentagon
  6. 60
  7. 110
  8. 6
  9. 300
  10. square
  11. 120
  12. triangle
  13. 200
  14. 45
  15. 220
  16. 600
  17. 80
  18. 320
  19. 375
  20. octagon
  21. 240
  22. hexagon
  23. 500
  24. 360 ÷ n degrees
  25. hexagon
  26. 72
  27. 800
  28. 380
  29. 375
  30. pentagon
  31. square
  32. 150
  33. triangle
  34. 400
  35. 480
  36. 300
  37. 40
  38. triangle
  39. 180
  40. square

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