Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 704 · 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.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) building tall and narrow (c) fitting rubber base pads (d) adding cross bracing
3. 3.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they stop shaking (d) they are cheap
5. 5.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 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 easiest to tip over? (a) tower C (b) tower B (c) tower A
6. 6.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
7. 7.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) building tall and narrow (d) adding cross bracing
10. 10.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
11. 11.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
12. 12.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
13. 13.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) using flexible joints (d) using a heavy roof
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 200 cm tall on a 40 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
15. 15.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) making brittle joints (d) stacking loose bricks
17. 17.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) fitting rubber base pads (d) making brittle joints
18. 18.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) raising heavy tanks high (d) using a heavy roof
19. 19.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) stacking loose bricks (c) fitting rubber base pads (d) having a wide base
20. 20.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
22. 22.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) making brittle joints (c) raising heavy tanks high (d) stacking loose bricks
23. 23.🏚️ 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 30 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 200 cm tall on a 40 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
25. 25.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding cross bracing (c) building tall and narrow (d) making brittle joints
26. 26.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding cross bracing (c) making brittle joints (d) using a light roof
27. 27.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ 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 40 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
30. 30.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
31. 31.🔍 Which is the odd one out? (a) using flexible joints (b) using a heavy roof (c) using a light roof (d) keeping a simple shape
32. 32.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is harder to tip over (d) it is taller
33. 33.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
34. 34.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 80 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 B (b) tower C (c) tower A
36. 36.🔍 Which is the odd one out? (a) keeping a simple shape (b) adding steel to concrete (c) using a light roof (d) raising heavy tanks high
37. 37.🏚️ Does leaving out steel bars 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 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 B (b) tower A (c) tower C
39. 39.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) building tall and narrow (d) adding cross bracing
40. 40.🔍 Which is the odd one out? (a) stacking loose bricks (b) keeping a simple shape (c) raising heavy tanks high (d) building tall and narrow

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