Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 228 · 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) fitting rubber base pads (b) having a wide base (c) making brittle joints (d) using a light roof
2. 2.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) making brittle joints (d) using a light roof
4. 4.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) having a wide base (d) using flexible joints
5. 5.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) making brittle joints (d) having a wide base
6. 6.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ 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 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
10. 10.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on the very top (d) on a thin pole
11. 11.True or false: having a wide base 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 90 cm tall on a 30 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using flexible joints (c) adding steel to concrete (d) adding cross bracing
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 240 cm tall on a 40 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
15. 15.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
16. 16.🔍 Which is the odd one out? (a) adding cross bracing (b) leaving out steel bars (c) building tall and narrow (d) making brittle joints
17. 17.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) stacking loose bricks (d) using a heavy roof
18. 18.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 10 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
19. 19.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) fitting rubber base pads (d) making brittle joints
20. 20.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
21. 21.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
22. 22.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they are cheap (d) they bend, not break
23. 23.🏚️ 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 40 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 B (b) tower A (c) tower C
24. 24.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) raising heavy tanks high (d) adding cross bracing
25. 25.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) raising heavy tanks high (d) using a heavy roof
26. 26.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
28. 28.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding steel to concrete (c) fitting rubber base pads (d) using flexible joints
29. 29.🏚️ 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 240 cm tall on a 40 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 C (c) tower A
30. 30.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
31. 31.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
32. 32.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) fitting rubber base pads (c) adding steel to concrete (d) leaving out steel bars
33. 33.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
34. 34.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🏚️ 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 90 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
37. 37.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) adding cross bracing (d) stacking loose bricks
38. 38.🏚️ 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 40 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
39. 39.🔍 Which is the odd one out? (a) keeping a simple shape (b) stacking loose bricks (c) using a heavy roof (d) making brittle joints
40. 40.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False

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