Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 505 · 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.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) adding steel to concrete (d) keeping a simple shape
4. 4.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) using flexible joints (d) building tall and narrow
5. 5.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
6. 6.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
7. 7.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) building tall and narrow (d) adding steel to concrete
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 50 cm tall on a 10 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 C (c) tower B
9. 9.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
10. 10.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
11. 11.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a shake table (d) a microscope
12. 12.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) having a wide base (d) leaving out steel bars
13. 13.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) raising heavy tanks high (d) using flexible joints
14. 14.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) adding steel to concrete (d) leaving out steel bars
15. 15.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
17. 17.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) using flexible joints (d) making brittle joints
19. 19.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) having a wide base (c) adding cross bracing (d) using a light roof
20. 20.🏚️ 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 70 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is taller (d) it is lighter
22. 22.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) making brittle joints (d) adding cross bracing
23. 23.Which of these makes a building safer in earthquakes? (a) using a light roof (b) leaving out steel bars (c) using a heavy roof (d) building tall and narrow
24. 24.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) fitting rubber base pads (d) raising heavy tanks high
25. 25.🏚️ 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 60 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
26. 26.🏚️ 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 120 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) stacking loose bricks (d) using flexible joints
28. 28.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) having a wide base (d) building tall and narrow
29. 29.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🔍 Which is the odd one out? (a) adding cross bracing (b) building tall and narrow (c) having a wide base (d) using a light roof
31. 31.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
32. 32.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ Does leaving out steel bars 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 80 cm tall on a 40 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 hardest to tip over? (a) tower B (b) tower A (c) tower C
35. 35.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a light roof (c) stacking loose bricks (d) having a wide base
36. 36.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) fitting rubber base pads (d) raising heavy tanks high
38. 38.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) keeping a simple shape (c) building tall and narrow (d) leaving out steel bars
39. 39.🏚️ 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 200 cm tall on a 40 cm base and tower C is 90 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.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True

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