Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 71 · 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 safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) adding cross bracing (d) making brittle joints
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
3. 3.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
4. 4.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) using flexible joints (d) making brittle joints
5. 5.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
7. 7.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) stacking loose bricks (c) using a light roof (d) keeping a simple shape
8. 8.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ 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 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
10. 10.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
11. 11.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) leaving out steel bars (c) raising heavy tanks high (d) building tall and narrow
12. 12.🏚️ 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 30 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) raising heavy tanks high (d) adding steel to concrete
16. 16.🔍 Which is the odd one out? (a) fitting rubber base pads (b) building tall and narrow (c) having a wide base (d) using flexible joints
17. 17.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
19. 19.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
20. 20.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
21. 21.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
22. 22.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using a light roof (c) using a heavy roof (d) stacking loose bricks
23. 23.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) using a light roof (d) raising heavy tanks high
24. 24.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
25. 25.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🏚️ 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 90 cm tall on a 30 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
28. 28.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
29. 29.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) using flexible joints (d) leaving out steel bars
30. 30.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a heavy roof (c) using flexible joints (d) adding steel to concrete
31. 31.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) leaving out steel bars (c) using a light roof (d) having a wide base
34. 34.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
35. 35.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) using a light roof (d) making brittle joints
36. 36.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) building tall and narrow (d) fitting rubber base pads
37. 37.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ 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 90 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) fitting rubber base pads (d) leaving out steel bars
40. 40.🏚️ 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 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 B (b) tower A (c) tower C

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