Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 438 · 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) having a wide base (b) fitting rubber base pads (c) raising heavy tanks high (d) using flexible joints
2. 2.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
3. 3.Which of these makes a building safer in earthquakes? (a) using a light roof (b) making brittle joints (c) raising heavy tanks high (d) using a heavy roof
4. 4.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) building tall and narrow (d) using a heavy roof
5. 5.🏚️ 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 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
6. 6.🏚️ 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 120 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
7. 7.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) leaving out steel bars (d) having a wide base
9. 9.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
10. 10.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
11. 11.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) using flexible joints (d) leaving out steel bars
12. 12.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ 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 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
15. 15.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) leaving out steel bars (d) stacking loose bricks
16. 16.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ 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
18. 18.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
19. 19.🏚️ 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 30 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
20. 20.🏚️ 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 80 cm tall on a 40 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 B (c) tower A
21. 21.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) fitting rubber base pads (d) making brittle joints
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
23. 23.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
24. 24.🏚️ 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 150 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
25. 25.🔍 Which is the odd one out? (a) using a heavy roof (b) adding steel to concrete (c) having a wide base (d) using a light roof
26. 26.🔍 Which is the odd one out? (a) making brittle joints (b) leaving out steel bars (c) using a heavy roof (d) adding steel to concrete
27. 27.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) having a wide base (d) making brittle joints
28. 28.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
29. 29.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) making brittle joints (d) adding steel to concrete
32. 32.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) adding cross bracing (d) using a heavy roof
34. 34.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ 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
37. 37.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) raising heavy tanks high (d) fitting rubber base pads
39. 39.🏚️ 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 40 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.🏚️ 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 180 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 B (b) tower A (c) tower C

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