Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 359 · 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) raising heavy tanks high (b) using a light roof (c) adding steel to concrete (d) using flexible joints
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
3. 3.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) adding steel to concrete (d) stacking loose bricks
4. 4.🏚️ 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 20 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
5. 5.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a shake table (d) a telescope
6. 6.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding steel to concrete (c) having a wide base (d) building tall and narrow
7. 7.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) low down (d) on the very top
10. 10.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) using flexible joints (d) leaving out steel bars
11. 11.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🏚️ 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 60 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
13. 13.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) using a light roof (d) using a heavy roof
14. 14.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) raising heavy tanks high (c) using flexible joints (d) using a light roof
15. 15.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) raising heavy tanks high (d) building tall and narrow
16. 16.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
17. 17.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
18. 18.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 20 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
20. 20.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
21. 21.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ 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 150 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
25. 25.🏚️ 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 40 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
28. 28.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) adding steel to concrete (d) making brittle joints
32. 32.🏚️ 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 40 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 A (b) tower C (c) tower B
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 100 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 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 safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) building tall and narrow (d) adding cross bracing
35. 35.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
36. 36.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
37. 37.🏚️ 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 100 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
38. 38.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
40. 40.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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