Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 220 · 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) using a light roof (b) making brittle joints (c) keeping a simple shape (d) adding steel to concrete
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they are cheap (d) they bend, not break
3. 3.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
4. 4.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
6. 6.🔍 Which is the odd one out? (a) fitting rubber base pads (b) building tall and narrow (c) keeping a simple shape (d) using flexible joints
7. 7.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🔍 Which is the odd one out? (a) adding steel to concrete (b) stacking loose bricks (c) having a wide base (d) fitting rubber base pads
9. 9.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
10. 10.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) using a heavy roof (c) stacking loose bricks (d) raising heavy tanks high
11. 11.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) on the very top (d) low down
12. 12.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) making brittle joints (d) adding cross bracing
13. 13.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) adding steel to concrete (d) using flexible joints
14. 14.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) using a light roof (d) adding steel to concrete
16. 16.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
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 20 cm tall on a 10 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
18. 18.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) building tall and narrow (d) using flexible joints
19. 19.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a heavy roof (c) having a wide base (d) leaving out steel bars
20. 20.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
22. 22.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
23. 23.🏚️ 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 180 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
24. 24.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) building tall and narrow (d) making brittle joints
25. 25.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding cross bracing (c) leaving out steel bars (d) making brittle joints
26. 26.🏚️ 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 10 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 A (b) tower B (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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
28. 28.🔍 Which is the odd one out? (a) keeping a simple shape (b) raising heavy tanks high (c) building tall and narrow (d) using a heavy roof
29. 29.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🏚️ 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 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 10 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
32. 32.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) adding cross bracing (d) using flexible joints
34. 34.🏚️ 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 80 cm tall on a 40 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
35. 35.🏚️ Does stacking loose bricks 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 150 cm tall on a 30 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 hardest to tip over? (a) tower A (b) tower B (c) tower C
37. 37.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) stacking loose bricks (d) building tall and narrow
38. 38.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
39. 39.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) making brittle joints (d) stacking loose bricks
40. 40.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True

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