Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 515 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a fridge (d) a microscope
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
3. 3.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) keeping a simple shape (b) leaving out steel bars (c) using a heavy roof (d) building tall and narrow
5. 5.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) adding cross bracing (c) leaving out steel bars (d) having a wide base
6. 6.🏚️ 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 80 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
7. 7.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) having a wide base (d) using a heavy roof
8. 8.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ 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 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
11. 11.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) fitting rubber base pads (d) leaving out steel bars
12. 12.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using a light roof (c) having a wide base (d) making brittle joints
13. 13.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
14. 14.🏚️ 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 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
15. 15.🔍 Which is the odd one out? (a) adding steel to concrete (b) keeping a simple shape (c) fitting rubber base pads (d) making brittle joints
16. 16.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
17. 17.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
18. 18.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) building tall and narrow (b) using flexible joints (c) leaving out steel bars (d) stacking loose bricks
20. 20.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) adding cross bracing (d) raising heavy tanks high
21. 21.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
22. 22.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) having a wide base (c) keeping a simple shape (d) using flexible joints
23. 23.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
25. 25.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.Which of these makes a building safer in earthquakes? (a) having a wide base (b) building tall and narrow (c) making brittle joints (d) leaving out steel bars
28. 28.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ Does having a wide base 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) fitting rubber base pads (b) having a wide base (c) leaving out steel bars (d) keeping a simple shape
31. 31.🏚️ 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 20 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) using a light roof (d) building tall and narrow
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
34. 34.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) raising heavy tanks high (d) adding steel to concrete
35. 35.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) keeping a simple shape (d) stacking loose bricks
36. 36.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) raising heavy tanks high (d) adding cross bracing
37. 37.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) using a light roof (d) using flexible joints
38. 38.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.🏚️ 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 30 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) raising heavy tanks high (d) keeping a simple shape

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