Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 835 · 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 of these makes a building less safe in earthquakes? (a) using a light roof (b) building tall and narrow (c) adding cross bracing (d) having a wide base
2. 2.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
3. 3.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) adding cross bracing (c) stacking loose bricks (d) raising heavy tanks high
4. 4.🏚️ 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 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 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 B (b) tower C (c) tower A
6. 6.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) having a wide base (c) using flexible joints (d) fitting rubber base pads
7. 7.🏚️ 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 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
8. 8.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) leaving out steel bars (d) adding steel to concrete
9. 9.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ 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
11. 11.🏚️ 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 C (b) tower B (c) tower A
12. 12.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
13. 13.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) using a light roof (d) adding steel to concrete
14. 14.🏚️ 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 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
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 160 cm tall on a 40 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
16. 16.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) building tall and narrow (d) raising heavy tanks high
17. 17.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) using flexible joints (d) stacking loose bricks
18. 18.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) using a light roof (d) stacking loose bricks
19. 19.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ 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 10 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
21. 21.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) raising heavy tanks high (d) leaving out steel bars
22. 22.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
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: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
25. 25.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
26. 26.🏚️ 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 120 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
27. 27.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🏚️ 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 120 cm tall on a 30 cm base and tower C is 60 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 is the odd one out? (a) making brittle joints (b) using a heavy roof (c) using a light roof (d) building tall and narrow
32. 32.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding steel to concrete (c) making brittle joints (d) fitting rubber base pads
33. 33.🔍 Which is the odd one out? (a) fitting rubber base pads (b) keeping a simple shape (c) having a wide base (d) leaving out steel bars
34. 34.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
36. 36.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🔍 Which is the odd one out? (a) raising heavy tanks high (b) having a wide base (c) leaving out steel bars (d) using a heavy roof
38. 38.🏚️ 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 40 cm tall on a 10 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break

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