Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 736 · 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.🏚️ 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 90 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
2. 2.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
3. 3.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) using flexible joints (d) leaving out steel bars
4. 4.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) using a heavy roof (d) having a wide base
5. 5.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🏚️ 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
8. 8.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) using a heavy roof (d) adding cross bracing
9. 9.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🔍 Which is the odd one out? (a) using a light roof (b) adding steel to concrete (c) leaving out steel bars (d) keeping a simple shape
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 120 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 B (b) tower C (c) tower A
12. 12.🏚️ 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 240 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
13. 13.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
14. 14.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using flexible joints (c) using a heavy roof (d) leaving out steel bars
15. 15.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) using a heavy roof (d) adding steel to concrete
16. 16.🏚️ 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 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
17. 17.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
18. 18.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) keeping a simple shape (d) leaving out steel bars
19. 19.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) having a wide base (d) building tall and narrow
20. 20.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) fitting rubber base pads (d) using a heavy roof
23. 23.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
24. 24.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) adding cross bracing (c) having a wide base (d) building tall and narrow
25. 25.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) fitting rubber base pads (d) stacking loose bricks
26. 26.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
27. 27.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) using a heavy roof (c) raising heavy tanks high (d) leaving out steel bars
28. 28.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) adding cross bracing (d) making brittle joints
30. 30.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding cross bracing (c) using a light roof (d) raising heavy tanks high
31. 31.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) making brittle joints (c) raising heavy tanks high (d) stacking loose bricks
32. 32.🏚️ 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 160 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
33. 33.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
35. 35.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
36. 36.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) fitting rubber base pads (d) keeping a simple shape
37. 37.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🏚️ 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 120 cm tall on a 40 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
39. 39.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True

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