Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 266 · 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) adding cross bracing (b) adding steel to concrete (c) using a light roof (d) building tall and narrow
2. 2.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) adding cross bracing (d) using a heavy roof
3. 3.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) stacking loose bricks (d) adding steel to concrete
4. 4.🏚️ 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 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
5. 5.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they stop shaking (d) they look nice
6. 6.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) building tall and narrow (d) stacking loose bricks
7. 7.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) raising heavy tanks high (d) building tall and narrow
8. 8.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
9. 9.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
10. 10.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) using a light roof (d) fitting rubber base pads
11. 11.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
13. 13.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) using flexible joints (d) raising heavy tanks high
14. 14.🏚️ 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 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 C (c) tower B
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 50 cm tall on a 10 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 A (c) tower C
16. 16.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ 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 40 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
18. 18.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
19. 19.True or false: building tall and narrow 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 50 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 A (b) tower B (c) tower C
21. 21.🏚️ Does fitting rubber base pads 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) building tall and narrow (b) using a heavy roof (c) keeping a simple shape (d) leaving out steel bars
23. 23.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
24. 24.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) building tall and narrow (d) using a light roof
25. 25.🔍 Which is the odd one out? (a) stacking loose bricks (b) fitting rubber base pads (c) raising heavy tanks high (d) using a heavy roof
26. 26.🏚️ 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 80 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
27. 27.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is taller (d) it is harder to tip over
28. 28.🏚️ 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 30 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
29. 29.🏚️ Does raising heavy tanks high 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) adding cross bracing (b) fitting rubber base pads (c) keeping a simple shape (d) making brittle joints
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 200 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
32. 32.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) making brittle joints (d) adding steel to concrete
33. 33.🏚️ 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 80 cm tall on a 20 cm base and tower C is 120 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) fitting rubber base pads (b) making brittle joints (c) using a heavy roof (d) leaving out steel bars
35. 35.🏚️ 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 320 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
36. 36.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) raising heavy tanks high (d) using flexible joints
37. 37.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) leaving out steel bars (d) having a wide base
38. 38.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ 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 120 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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