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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 145 · 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) to make it crash (b) squares need 5 sides (c) the same steps repeat (d) loops are colourful
  2. 2.🔁 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
  3. 3.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 360° (b) 180° (c) 90° (d) 720°
  4. 4.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  5. 5.🔁 A drawing robot runs:
    repeat 4 { forward 20 cm; turn right 90° }
    How many cm does it drive in all?
  6. 6.🔁 A drawing robot runs:
    repeat 5 { forward 95 cm; turn right 72° }
    How many cm does it drive in all?
  7. 7.🔁 A drawing robot runs:
    repeat 3 { forward 80 cm; turn right 120° }
    Which shape does it draw?     (a) hexagon (b) octagon (c) square (d) triangle
  8. 8.🔁 A drawing robot runs:
    repeat 4 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  9. 9.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 15 cm; turn right ?° }
    What number goes in place of “?”
  10. 10.🔁 A drawing robot runs:
    repeat 5 { forward 10 cm; turn right 72° }
    Which shape does it draw?     (a) hexagon (b) square (c) pentagon (d) octagon
  11. 11.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  12. 12.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  13. 13.🔁 A drawing robot runs:
    repeat 6 { forward 10 cm; turn right 60° }
    Which shape does it draw?     (a) hexagon (b) triangle (c) pentagon (d) square
  14. 14.🔁 A drawing robot runs:
    repeat 5 { forward 85 cm; turn right 72° }
    How many cm does it drive in all?
  15. 15.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 75 cm; turn right ?° }
    What number goes in place of “?”
  16. 16.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 85 cm; turn right ?° }
    What number goes in place of “?”
  17. 17.🔁 A robot must draw a regular hexagon (6 equal sides):
    repeat 6 { forward 25 cm; turn right ?° }
    What number goes in place of “?”
  18. 18.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 90 cm; turn right ?° }
    What number goes in place of “?”
  19. 19.🔁 A drawing robot runs:
    repeat 3 { forward 45 cm; turn right 120° }
    How many cm does it drive in all?
  20. 20.🔁 A drawing robot runs:
    repeat 4 { forward 70 cm; turn right 90° }
    How many cm does it drive in all?
  21. 21.🔁 A drawing robot runs:
    repeat 8 { forward 15 cm; turn right 45° }
    Which shape does it draw?     (a) octagon (b) pentagon (c) triangle (d) square
  22. 22.🔁 A drawing robot runs:
    repeat 4 { forward 55 cm; turn right 90° }
    Which shape does it draw?     (a) octagon (b) square (c) triangle (d) hexagon
  23. 23.🔁 A drawing robot runs:
    repeat 3 { forward 90 cm; turn right 120° }
    How many cm does it drive in all?
  24. 24.🔁 A drawing robot runs:
    repeat 4 { forward 75 cm; turn right 90° }
    Which shape does it draw?     (a) octagon (b) square (c) hexagon (d) pentagon
  25. 25.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 30 cm; turn right 90° } }
    How many cm does it drive in all?
  26. 26.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  27. 27.🔁 A drawing robot runs:
    repeat 8 { forward 75 cm; turn right 45° }
    How many cm does it drive in all?
  28. 28.🔁 How many sides does a hexagon have? (a) 6 (b) 8 (c) 5 (d) 7
  29. 29.🔁 A drawing robot runs:
    repeat 8 { forward 35 cm; turn right 45° }
    How many cm does it drive in all?
  30. 30.🔁 A drawing robot runs:
    repeat 2 { forward 30 cm; turn right 90°; forward 20 cm; turn right 90° }
    How many cm does it drive in all?
  31. 31.🔁 A drawing robot runs:
    repeat 5 { forward 15 cm; turn right 72° }
    How many cm does it drive in all?
  32. 32.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 15 cm; turn right 90° } }
    How many cm does it drive in all?
  33. 33.🔁 A drawing robot runs:
    repeat 6 { forward 75 cm; turn right 60° }
    Which shape does it draw?     (a) octagon (b) hexagon (c) pentagon (d) square
  34. 34.🔁 A drawing robot runs:
    repeat 4 { forward 85 cm; turn right 90° }
    How many cm does it drive in all?
  35. 35.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  36. 36.🔁 A drawing robot runs:
    repeat 2 { forward 15 cm; turn right 90°; forward 15 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  37. 37.🔁 A drawing robot runs:
    repeat 3 { forward 85 cm; turn right 120° }
    Which shape does it draw?     (a) hexagon (b) octagon (c) square (d) triangle
  38. 38.🔁 A drawing robot runs:
    repeat 3 { forward 40 cm; turn right 120° }
    How many cm does it drive in all?
  39. 39.🔁 A drawing robot runs:
    repeat 5 { forward 20 cm; turn right 72° }
    Which shape does it draw?     (a) pentagon (b) triangle (c) square (d) hexagon
  40. 40.🔁 A drawing robot runs:
    repeat 3 { forward 60 cm; turn right 120° }
    Which shape does it draw?     (a) pentagon (b) triangle (c) octagon (d) square

Answer key

  1. the same steps repeat
  2. 360 ÷ n degrees
  3. 360°
  4. 480
  5. 80
  6. 475
  7. triangle
  8. 160
  9. 90
  10. pentagon
  11. 180
  12. 80
  13. hexagon
  14. 425
  15. 45
  16. 60
  17. 60
  18. 45
  19. 135
  20. 280
  21. octagon
  22. square
  23. 270
  24. square
  25. 600
  26. 200
  27. 600
  28. 6
  29. 280
  30. 100
  31. 75
  32. 120
  33. hexagon
  34. 340
  35. 60
  36. 225
  37. triangle
  38. 120
  39. pentagon
  40. triangle

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