Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 774 · 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) using a heavy roof (b) raising heavy tanks high (c) keeping a simple shape (d) building tall and narrow
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
3. 3.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) stacking loose bricks (d) building tall and narrow
4. 4.🏚️ 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 80 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
5. 5.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) leaving out steel bars (c) adding cross bracing (d) adding steel to concrete
6. 6.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) making brittle joints (d) using flexible joints
7. 7.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) making brittle joints (d) having a wide base
9. 9.🏚️ 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 60 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
10. 10.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is colourful (d) it is taller
11. 11.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on the very top (c) hanging outside (d) on a thin pole
14. 14.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
15. 15.🏚️ 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 80 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 B (b) tower C (c) tower A
16. 16.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) using flexible joints (d) building tall and narrow
18. 18.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) keeping a simple shape (d) adding steel to concrete
19. 19.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) raising heavy tanks high (d) adding steel to concrete
20. 20.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
21. 21.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) using a light roof (d) using a heavy roof
23. 23.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) leaving out steel bars (d) using a light roof
24. 24.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
26. 26.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) using a heavy roof (d) having a wide base
30. 30.🏚️ 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 120 cm tall on a 30 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
31. 31.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
32. 32.🔍 Which is the odd one out? (a) keeping a simple shape (b) stacking loose bricks (c) adding cross bracing (d) adding steel to concrete
33. 33.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
34. 34.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
36. 36.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding cross bracing (c) having a wide base (d) raising heavy tanks high
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
38. 38.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) using a heavy roof (d) adding steel to concrete
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 140 cm tall on a 20 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 40 cm tall on a 10 cm wide base, tower B is 40 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 A (b) tower C (c) tower B

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