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Scale Drawing Worksheet

Engineering lesson 23: Measuring and scale drawings · Set 101 · 40 questions
TalentJR

Engineer's tip (Multiply to grow, divide to shrink): Real length = drawing length × what 1 cm stands for. Drawing length = real length ÷ what 1 cm stands for. Units: 1 m = 100 cm · 1 cm = 10 mm · 1 km = 1000 m.

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  1. 1.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 6 cm long in the drawing. How long is the real car, in centimetres?
  2. 2.📐 On a plan, 1 cm stands for 10 m. A real bridge is 20 m long. How long is it on the plan, in centimetres?
  3. 3.📐 A beam is 940 cm long. How long is it in metres? =
  4. 4.📐 A beam is 300 cm long. How long is it in metres? =
  5. 5.📐 On a plan, 1 cm stands for 10 m. A wall is 19 cm long on the plan. How long is the real wall, in metres?
  6. 6.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 4 cm long in the drawing. How long is the real car, in centimetres?
  7. 7.📐 On a plan, 1 cm stands for 5 m. A real bridge is 90 m long. How long is it on the plan, in centimetres?
  8. 8.📐 On a plan, 1 cm stands for 20 m. A real bridge is 300 m long. How long is it on the plan, in centimetres?
  9. 9.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 11 cm long in the drawing. How long is the real car, in centimetres?
  10. 10.📐 On a plan, 1 cm stands for 10 m. A wall is 2 cm long on the plan. How long is the real wall, in metres?
  11. 11.📐 On a plan, 1 cm stands for 10 m. A real bridge is 40 m long. How long is it on the plan, in centimetres?
  12. 12.📐 A model car is drawn so that 1 cm stands for 10 cm. The car is 7 cm long in the drawing. How long is the real car, in centimetres?
  13. 13.📐 How many millimetres are in 1 centimetre? (a) 10 (b) 1000 (c) 100 (d) 5
  14. 14.📐 A beam is 650 cm long. How long is it in metres? =
  15. 15.📐 On a plan, 1 cm stands for 2 m. A real bridge is 6 m long. How long is it on the plan, in centimetres?
  16. 16.📐 On a plan, 1 cm stands for 20 m. A real bridge is 60 m long. How long is it on the plan, in centimetres?
  17. 17.📐 A beam is 820 cm long. How long is it in metres? =
  18. 18.📐 On a plan, 1 cm stands for 2 m. A wall is 3 cm long on the plan. How long is the real wall, in metres?
  19. 19.📐 A beam is 250 cm long. How long is it in metres? =
  20. 20.📐 On a plan, 1 cm stands for 20 m. A real bridge is 400 m long. How long is it on the plan, in centimetres?
  21. 21.📐 On a plan, 1 cm stands for 2 m. A real bridge is 10 m long. How long is it on the plan, in centimetres?
  22. 22.📐 On a plan, 1 cm stands for 10 m. A real bridge is 120 m long. How long is it on the plan, in centimetres?
  23. 23.📐 How many centimetres are in 1 metre? (a) 10 (b) 1000 (c) 100 (d) 60
  24. 24.📐 Why do engineers use scale drawings? (a) big things fit on paper (b) to make them pretty (c) to hide sizes (d) to save ink only
  25. 25.📐 On a plan, 1 cm stands for 2 m. A wall is 19 cm long on the plan. How long is the real wall, in metres?
  26. 26.📐 A beam is 980 cm long. How long is it in metres? =
  27. 27.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 7 cm long in the drawing. How long is the real car, in centimetres?
  28. 28.📐 On a plan, 1 cm stands for 20 m. A real bridge is 80 m long. How long is it on the plan, in centimetres?
  29. 29.📐 A beam is 160 cm long. How long is it in metres? =
  30. 30.📐 A beam is 720 cm long. How long is it in metres? =
  31. 31.📐 A beam is 520 cm long. How long is it in metres? =
  32. 32.📐 A beam is 190 cm long. How long is it in metres? =
  33. 33.📐 On a plan, 1 cm stands for 2 m. A wall is 12 cm long on the plan. How long is the real wall, in metres?
  34. 34.📐 On a plan, 1 cm stands for 20 m. A real bridge is 140 m long. How long is it on the plan, in centimetres?
  35. 35.📐 A beam is 240 cm long. How long is it in metres? =
  36. 36.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 7 cm long in the drawing. How long is the real car, in centimetres?
  37. 37.📐 A beam is 640 cm long. How long is it in metres? =
  38. 38.📐 On a plan, 1 cm stands for 5 m. A wall is 8 cm long on the plan. How long is the real wall, in metres?
  39. 39.📐 A model car is drawn so that 1 cm stands for 40 cm. The car is 11 cm long in the drawing. How long is the real car, in centimetres?
  40. 40.📐 A model car is drawn so that 1 cm stands for 20 cm. The car is 3 cm long in the drawing. How long is the real car, in centimetres?

Answer key

  1. 60
  2. 2
  3. 9.4
  4. 3
  5. 190
  6. 40
  7. 18
  8. 15
  9. 110
  10. 20
  11. 4
  12. 70
  13. 10
  14. 6.5
  15. 3
  16. 3
  17. 8.2
  18. 6
  19. 2.5
  20. 20
  21. 5
  22. 12
  23. 100
  24. big things fit on paper
  25. 38
  26. 9.8
  27. 140
  28. 4
  29. 1.6
  30. 7.2
  31. 5.2
  32. 1.9
  33. 24
  34. 7
  35. 2.4
  36. 280
  37. 6.4
  38. 40
  39. 440
  40. 60

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