Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 484 · 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 light roof (b) using flexible joints (c) keeping a simple shape (d) leaving out steel bars
2. 2.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) using flexible joints (d) having a wide base
3. 3.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
5. 5.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding cross bracing (c) stacking loose bricks (d) making brittle joints
6. 6.🏚️ 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 120 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
7. 7.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on a thin pole (d) on the very top
10. 10.🏚️ 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 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
12. 12.🏚️ 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 20 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
13. 13.🔍 Which is the odd one out? (a) having a wide base (b) stacking loose bricks (c) making brittle joints (d) using a heavy roof
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
15. 15.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) making brittle joints (d) raising heavy tanks high
16. 16.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) building tall and narrow (d) having a wide base
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
18. 18.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
19. 19.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) keeping a simple shape (d) stacking loose bricks
21. 21.🏚️ 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 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
22. 22.🏚️ 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 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
23. 23.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
25. 25.Which of these makes a building safer in earthquakes? (a) having a wide base (b) stacking loose bricks (c) using a heavy roof (d) building tall and narrow
26. 26.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
27. 27.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
28. 28.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a fridge (d) a telescope
29. 29.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
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 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
33. 33.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) using flexible joints (d) leaving out steel bars
34. 34.🏚️ 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 180 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
35. 35.🏚️ 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 60 cm tall on a 30 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
36. 36.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) using flexible joints (d) building tall and narrow
38. 38.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) fitting rubber base pads (d) having a wide base
39. 39.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B

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