Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 115 · 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) building tall and narrow (b) using flexible joints (c) leaving out steel bars (d) making brittle joints
2. 2.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) making brittle joints (d) building tall and narrow
3. 3.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
5. 5.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
6. 6.🏚️ 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 70 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
7. 7.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on a thin pole (d) on the very top
8. 8.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) raising heavy tanks high (d) stacking loose bricks
9. 9.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) using a light roof (d) raising heavy tanks high
10. 10.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) adding steel to concrete (d) having a wide base
11. 11.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a heavy roof (c) using flexible joints (d) having a wide base
12. 12.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
13. 13.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) adding cross bracing (c) having a wide base (d) adding steel to concrete
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 10 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
15. 15.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
16. 16.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) raising heavy tanks high (d) adding steel to concrete
17. 17.🏚️ 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 20 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 C (c) tower A
18. 18.🏚️ 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 120 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
20. 20.🏚️ 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 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
21. 21.🏚️ 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 180 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
23. 23.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding cross bracing (c) using flexible joints (d) raising heavy tanks high
25. 25.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
26. 26.🏚️ 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 240 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.🏚️ 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 80 cm tall on a 20 cm base and tower C is 240 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
28. 28.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a microscope (d) a fridge
30. 30.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
32. 32.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
33. 33.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
34. 34.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) leaving out steel bars (d) fitting rubber base pads
35. 35.Which of these makes a building safer in earthquakes? (a) having a wide base (b) raising heavy tanks high (c) leaving out steel bars (d) stacking loose bricks
36. 36.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) adding steel to concrete (d) using a heavy roof
39. 39.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
40. 40.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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