Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 826 · 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 flexible joints (b) having a wide base (c) building tall and narrow (d) adding cross bracing
2. 2.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) fitting rubber base pads (d) using a heavy roof
3. 3.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
4. 4.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
5. 5.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) adding steel to concrete (d) adding cross bracing
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
7. 7.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) using a light roof
8. 8.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) stacking loose bricks (d) adding steel to concrete
10. 10.🏚️ 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
11. 11.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) using a heavy roof (d) having a wide base
13. 13.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
14. 14.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) using a heavy roof (d) fitting rubber base pads
15. 15.🔍 Which is the odd one out? (a) making brittle joints (b) keeping a simple shape (c) leaving out steel bars (d) building tall and narrow
16. 16.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is colourful (d) it is taller
19. 19.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) making brittle joints (d) adding cross bracing
20. 20.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) making brittle joints (c) using a light roof (d) having a wide base
21. 21.🏚️ 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 120 cm tall on a 40 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 120 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
23. 23.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
24. 24.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
25. 25.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) using a heavy roof (d) adding cross bracing
27. 27.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
28. 28.🏚️ 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 150 cm tall on a 30 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 B (c) tower C
29. 29.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) fitting rubber base pads (c) stacking loose bricks (d) making brittle joints
30. 30.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) adding steel to concrete (d) raising heavy tanks high
31. 31.🏚️ 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 40 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
32. 32.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
34. 34.🏚️ 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 120 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) adding cross bracing (d) using a light roof
36. 36.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a heavy roof (c) making brittle joints (d) raising heavy tanks high
37. 37.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) adding cross bracing (d) raising heavy tanks high
38. 38.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
39. 39.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
40. 40.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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