Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 648 · 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) using a heavy roof (b) raising heavy tanks high (c) keeping a simple shape (d) leaving out steel bars
2. 2.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) adding steel to concrete (d) using flexible joints
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they are cheap (d) they bend, not break
5. 5.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) stacking loose bricks (d) adding steel to concrete
6. 6.🏚️ 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
7. 7.🏚️ 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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
8. 8.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
9. 9.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) adding steel to concrete (d) building tall and narrow
10. 10.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
12. 12.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) making brittle joints (d) stacking loose bricks
13. 13.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) stacking loose bricks (d) building tall and narrow
14. 14.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) stacking loose bricks (d) keeping a simple shape
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 240 cm tall on a 40 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 B (c) tower C
16. 16.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ 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 40 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
18. 18.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) using flexible joints (c) adding cross bracing (d) keeping a simple shape
19. 19.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🏚️ 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
21. 21.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
22. 22.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) keeping a simple shape (d) leaving out steel bars
23. 23.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) using a light roof (d) building tall and narrow
24. 24.🏚️ 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 180 cm tall on a 30 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
25. 25.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
26. 26.🏚️ 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 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.🏚️ 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 50 cm tall on a 10 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
28. 28.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
29. 29.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 210 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ 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 40 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
35. 35.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
36. 36.🏚️ 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 20 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
37. 37.🔍 Which is the odd one out? (a) using flexible joints (b) raising heavy tanks high (c) fitting rubber base pads (d) having a wide base
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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