Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 707 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
2. 2.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) low down (d) on a thin pole
3. 3.🏚️ 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 120 cm tall on a 30 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 C (c) tower A
4. 4.🏚️ 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 60 cm tall on a 10 cm base and tower C is 80 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
5. 5.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🔍 Which is the odd one out? (a) fitting rubber base pads (b) making brittle joints (c) raising heavy tanks high (d) using a heavy roof
7. 7.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
8. 8.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
9. 9.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is taller (d) it is colourful
10. 10.🏚️ 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 60 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 B (b) tower A (c) tower C
11. 11.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
12. 12.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) keeping a simple shape (d) adding cross bracing
13. 13.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) raising heavy tanks high (d) having a wide base
15. 15.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) leaving out steel bars (d) using a light roof
16. 16.🏚️ 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 200 cm tall on a 40 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 A (c) tower C
17. 17.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) adding steel to concrete (d) building tall and narrow
18. 18.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
19. 19.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
20. 20.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) having a wide base (d) adding cross bracing
21. 21.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
23. 23.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) using a heavy roof (b) using flexible joints (c) raising heavy tanks high (d) building tall and narrow
25. 25.🏚️ 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 240 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
26. 26.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) using flexible joints (d) fitting rubber base pads
27. 27.🏚️ 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 150 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 C (b) tower B (c) tower A
28. 28.🏚️ 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 90 cm tall on a 30 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
29. 29.🔍 Which is the odd one out? (a) fitting rubber base pads (b) leaving out steel bars (c) using flexible joints (d) having a wide base
30. 30.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) having a wide base (c) stacking loose bricks (d) adding steel to concrete
31. 31.🏚️ 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 60 cm tall on a 10 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
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 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (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 50 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
35. 35.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
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 20 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
40. 40.🏚️ 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 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A

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