Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 802 · 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 heavy roof (c) leaving out steel bars (d) fitting rubber base pads
2. 2.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) using flexible joints (d) leaving out steel bars
3. 3.🏚️ 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 30 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 C (b) tower B (c) tower A
4. 4.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) having a wide base (d) stacking loose bricks
6. 6.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ 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 120 cm tall on a 40 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
9. 9.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
10. 10.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) using a light roof (d) building tall and narrow
11. 11.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
12. 12.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
13. 13.🏚️ 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 20 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
14. 14.🔍 Which is the odd one out? (a) keeping a simple shape (b) leaving out steel bars (c) building tall and narrow (d) stacking loose bricks
15. 15.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
16. 16.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using a heavy roof (c) keeping a simple shape (d) fitting rubber base pads
17. 17.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ 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 40 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
19. 19.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) fitting rubber base pads (d) having a wide base
21. 21.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
23. 23.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
24. 24.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
25. 25.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding cross bracing (c) building tall and narrow (d) having a wide base
26. 26.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
28. 28.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
29. 29.🏚️ 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
30. 30.🏚️ 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 30 cm tall on a 10 cm base and tower C is 20 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) leaving out steel bars (b) having a wide base (c) using a light roof (d) adding steel to concrete
32. 32.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 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 C (b) tower B (c) tower A
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.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a light roof (c) raising heavy tanks high (d) adding cross bracing
37. 37.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) raising heavy tanks high (d) building tall and narrow
38. 38.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) adding steel to concrete (d) having a wide base
39. 39.🏚️ 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 20 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 A (c) tower B
40. 40.🏚️ 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 C (b) tower B (c) tower A

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