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Robotics Worksheet: Loops and Shapes

Robotics lesson 22: Loops and shapes · Set 196 · 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 robot must draw a regular square (4 equal sides):
    repeat 4 { forward 90 cm; turn right ?° }
    What number goes in place of “?”
  2. 2.🔁 Why do we use a loop to draw a square? (a) to make it crash (b) the same steps repeat (c) loops are colourful (d) squares need 5 sides
  3. 3.🔁 A drawing robot runs:
    repeat 5 { forward 10 cm; turn right 72° }
    How many cm does it drive in all?
  4. 4.🔁 A drawing robot runs:
    repeat 6 { forward 40 cm; turn right 60° }
    How many cm does it drive in all?
  5. 5.🔁 A drawing robot runs:
    repeat 5 { forward 50 cm; turn right 72° }
    Which shape does it draw?     (a) octagon (b) square (c) hexagon (d) pentagon
  6. 6.🔁 A drawing robot runs:
    repeat 8 { forward 70 cm; turn right 45° }
    Which shape does it draw?     (a) triangle (b) octagon (c) square (d) pentagon
  7. 7.🔁 A drawing robot runs:
    repeat 5 { repeat 4 { forward 10 cm; turn right 90° } }
    How many cm does it drive in all?
  8. 8.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 85 cm; turn right ?° }
    What number goes in place of “?”
  9. 9.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 100 cm; turn right ?° }
    What number goes in place of “?”
  10. 10.🔁 A drawing robot runs:
    repeat 2 { forward 30 cm; turn right 90°; forward 10 cm; turn right 90° }
    How many cm does it drive in all?
  11. 11.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  12. 12.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 5 cm; turn right 90° } }
    How many cm does it drive in all?
  13. 13.🔁 A drawing robot runs:
    repeat 3 { forward 45 cm; turn right 120° }
    How many cm does it drive in all?
  14. 14.🔁 A drawing robot runs:
    repeat 5 { forward 95 cm; turn right 72° }
    How many cm does it drive in all?
  15. 15.🔁 A drawing robot runs:
    repeat 6 { forward 55 cm; turn right 60° }
    How many cm does it drive in all?
  16. 16.🔁 A drawing robot runs:
    repeat 5 { forward 35 cm; turn right 72° }
    How many cm does it drive in all?
  17. 17.🔁 A drawing robot runs:
    repeat 3 { repeat 4 { forward 20 cm; turn right 90° } }
    How many cm does it drive in all?
  18. 18.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 60 cm; turn right 90° }
    How many cm does it drive in all?
  19. 19.🔁 A drawing robot runs:
    repeat 2 { forward 40 cm; turn right 90°; forward 30 cm; turn right 90° }
    How many cm does it drive in all?
  20. 20.🔁 A drawing robot runs:
    repeat 2 { forward 40 cm; turn right 90°; forward 40 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  21. 21.🔁 A drawing robot runs:
    repeat 5 { forward 25 cm; turn right 72° }
    Which shape does it draw?     (a) triangle (b) pentagon (c) octagon (d) square
  22. 22.🔁 A drawing robot runs:
    repeat 2 { forward 55 cm; turn right 90°; forward 50 cm; turn right 90° }
    What is the area of the rectangle it draws (in square cm)?
  23. 23.🔁 A drawing robot runs:
    repeat 6 { forward 40 cm; turn right 60° }
    Which shape does it draw?     (a) octagon (b) hexagon (c) triangle (d) square
  24. 24.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 15 cm; turn right ?° }
    What number goes in place of “?”
  25. 25.🔁 A drawing robot runs:
    repeat 6 { forward 45 cm; turn right 60° }
    Which shape does it draw?     (a) pentagon (b) hexagon (c) square (d) octagon
  26. 26.🔁 A robot must draw a regular triangle (3 equal sides):
    repeat 3 { forward 25 cm; turn right ?° }
    What number goes in place of “?”
  27. 27.🔁 A drawing robot runs:
    repeat 2 { forward 55 cm; turn right 90°; forward 10 cm; turn right 90° }
    How many cm does it drive in all?
  28. 28.🔁 A drawing robot runs:
    repeat 4 { forward 75 cm; turn right 90° }
    Which shape does it draw?     (a) triangle (b) octagon (c) pentagon (d) square
  29. 29.🔁 A drawing robot runs:
    repeat 3 { forward 20 cm; turn right 120° }
    How many cm does it drive in all?
  30. 30.🔁 A robot must draw a regular octagon (8 equal sides):
    repeat 8 { forward 80 cm; turn right ?° }
    What number goes in place of “?”
  31. 31.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 20 cm; turn right ?° }
    What number goes in place of “?”
  32. 32.🔁 A drawing robot runs:
    repeat 4 { forward 80 cm; turn right 90° }
    Which shape does it draw?     (a) octagon (b) hexagon (c) square (d) pentagon
  33. 33.🔁 A drawing robot runs:
    repeat 4 { forward 25 cm; turn right 90° }
    How many cm does it drive in all?
  34. 34.🔁 A drawing robot runs:
    repeat 2 { repeat 4 { forward 25 cm; turn right 90° } }
    How many cm does it drive in all?
  35. 35.🔁 A drawing robot runs:
    repeat 3 { forward 50 cm; turn right 120° }
    Which shape does it draw?     (a) pentagon (b) octagon (c) square (d) triangle
  36. 36.🔁 A drawing robot runs:
    repeat 3 { forward 100 cm; turn right 120° }
    Which shape does it draw?     (a) octagon (b) square (c) triangle (d) pentagon
  37. 37.🔁 To draw any closed regular shape, a robot turns how many degrees in all? (a) 180° (b) 90° (c) 360° (d) 720°
  38. 38.🔁 A robot must draw a regular square (4 equal sides):
    repeat 4 { forward 35 cm; turn right ?° }
    What number goes in place of “?”
  39. 39.🔁 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)?
  40. 40.🔁 A drawing robot runs:
    repeat 2 { forward 20 cm; turn right 90°; forward 30 cm; turn right 90° }
    How many cm does it drive in all?

Answer key

  1. 90
  2. the same steps repeat
  3. 50
  4. 240
  5. pentagon
  6. octagon
  7. 200
  8. 45
  9. 120
  10. 80
  11. 40
  12. 60
  13. 135
  14. 475
  15. 330
  16. 175
  17. 240
  18. 160
  19. 140
  20. 1600
  21. pentagon
  22. 2750
  23. hexagon
  24. 90
  25. hexagon
  26. 120
  27. 130
  28. square
  29. 60
  30. 45
  31. 90
  32. square
  33. 100
  34. 200
  35. triangle
  36. triangle
  37. 360°
  38. 90
  39. 3000
  40. 100

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