Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 100 · 40 questions

Engineer's tip (Low, wide, flexible): Safer: wide base, flexible joints, bracing, steel in concrete, light roof, rubber pads, simple shape. Less safe: heavy tops, narrow bases, loose bricks, no steel, brittle joints. Tipping: compare height ÷ base width — the smaller it is, the steadier the block.

1. 1.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 280 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
3. 3.🔍 Which is the odd one out? (a) using a light roof (b) adding cross bracing (c) keeping a simple shape (d) using a heavy roof
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they are cheap (d) they look nice
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
6. 6.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
7. 7.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
8. 8.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
9. 9.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) having a wide base (d) adding cross bracing
10. 10.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) using a light roof (d) stacking loose bricks
11. 11.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) having a wide base (d) fitting rubber base pads
12. 12.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) fitting rubber base pads (d) using a heavy roof
13. 13.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) adding steel to concrete (d) having a wide base
17. 17.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
19. 19.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🔍 Which is the odd one out? (a) using a light roof (b) leaving out steel bars (c) building tall and narrow (d) making brittle joints
22. 22.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) raising heavy tanks high (d) using flexible joints
23. 23.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) on the very top (d) hanging outside
24. 24.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) using a light roof (d) making brittle joints
25. 25.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) keeping a simple shape (d) raising heavy tanks high
26. 26.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
28. 28.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) using a light roof (d) using a heavy roof
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 10 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
34. 34.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
35. 35.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
38. 38.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
40. 40.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False

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