Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 741 · 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.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) adding steel to concrete (d) building tall and narrow
3. 3.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
7. 7.🏚️ 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 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
10. 10.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
11. 11.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) leaving out steel bars (c) using a heavy roof (d) making brittle joints
13. 13.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) fitting rubber base pads (d) leaving out steel bars
14. 14.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) fitting rubber base pads (d) using flexible joints
15. 15.🏚️ 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
16. 16.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) raising heavy tanks high (d) using flexible joints
17. 17.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🏚️ 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 200 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
19. 19.🏚️ Does raising heavy tanks high 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 50 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 20 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
21. 21.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is taller (d) it is lighter
22. 22.🔍 Which is the odd one out? (a) having a wide base (b) raising heavy tanks high (c) adding cross bracing (d) adding steel to concrete
23. 23.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
24. 24.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) fitting rubber base pads (c) having a wide base (d) adding cross bracing
25. 25.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
26. 26.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) adding cross bracing (d) raising heavy tanks high
29. 29.🏚️ 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 60 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
30. 30.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
31. 31.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) adding cross bracing (c) keeping a simple shape (d) building tall and narrow
32. 32.🏚️ 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 120 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.🔍 Which is the odd one out? (a) building tall and narrow (b) keeping a simple shape (c) using a heavy roof (d) stacking loose bricks
34. 34.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) having a wide base (d) using a light roof
36. 36.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) having a wide base (d) raising heavy tanks high
37. 37.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) using a heavy roof (d) making brittle joints
38. 38.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) leaving out steel bars (d) using a heavy roof
39. 39.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) raising heavy tanks high (c) building tall and narrow (d) leaving out steel bars
40. 40.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) adding cross bracing (d) using a heavy roof

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