Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 283 · 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.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) raising heavy tanks high (d) fitting rubber base pads
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
4. 4.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 120 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
6. 6.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) adding cross bracing (d) using flexible joints
7. 7.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) leaving out steel bars (d) adding cross bracing
8. 8.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) keeping a simple shape (d) fitting rubber base pads
9. 9.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
10. 10.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) low down (d) on the very top
12. 12.🏚️ 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 20 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
13. 13.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) building tall and narrow (d) using a light roof
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
15. 15.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
16. 16.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) making brittle joints (d) fitting rubber base pads
17. 17.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
18. 18.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
20. 20.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 10 cm wide base, tower B is 70 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) using a heavy roof (d) making brittle joints
24. 24.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using flexible joints (c) making brittle joints (d) using a light roof
26. 26.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
27. 27.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
28. 28.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they stop shaking (d) they look nice
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
31. 31.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 280 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
34. 34.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) building tall and narrow (d) having a wide base
35. 35.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) fitting rubber base pads (d) leaving out steel bars
37. 37.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
38. 38.🏚️ 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 10 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) using a heavy roof (d) using a light roof
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B

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