Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 337 · 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.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
3. 3.🏚️ 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 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
5. 5.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they bend, not break (d) they stop shaking
7. 7.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) using a light roof (d) using a heavy roof
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 80 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 easiest to tip over? (a) tower C (b) tower A (c) tower B
9. 9.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
10. 10.🏚️ 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 30 cm tall on a 10 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
11. 11.🏚️ Does fitting rubber base pads 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) adding steel to concrete (b) using a light roof (c) using flexible joints (d) raising heavy tanks high
13. 13.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
14. 14.🏚️ 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
15. 15.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) adding steel to concrete (d) building tall and narrow
16. 16.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) building tall and narrow (d) adding steel to concrete
17. 17.🏚️ 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 120 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
18. 18.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) leaving out steel bars (d) adding cross bracing
20. 20.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🏚️ 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
23. 23.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) using a heavy roof (d) keeping a simple shape
24. 24.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) making brittle joints (d) adding steel to concrete
25. 25.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) raising heavy tanks high (d) building tall and narrow
26. 26.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a light roof (c) stacking loose bricks (d) using flexible joints
28. 28.🏚️ 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 240 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
29. 29.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
30. 30.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) adding cross bracing (c) adding steel to concrete (d) keeping a simple shape
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 200 cm tall on a 40 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 A (c) tower B
32. 32.🏚️ 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 120 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 B (c) tower A
33. 33.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
34. 34.🏚️ 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 100 cm tall on a 20 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
35. 35.🏚️ 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 60 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
36. 36.🔍 Which is the odd one out? (a) stacking loose bricks (b) raising heavy tanks high (c) building tall and narrow (d) using flexible joints
37. 37.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) keeping a simple shape (d) raising heavy tanks high
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) making brittle joints (c) using a heavy roof (d) raising heavy tanks high
40. 40.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A

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