Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 645 · 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 building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ 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 180 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
3. 3.🏚️ 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 90 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
4. 4.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
5. 5.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is taller (d) it is harder to tip over
6. 6.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
7. 7.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) stacking loose bricks (c) adding steel to concrete (d) using a light roof
9. 9.True or false: using a light 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 60 cm tall on a 20 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 hardest to tip over? (a) tower B (b) tower A (c) tower C
11. 11.🔍 Which is the odd one out? (a) leaving out steel bars (b) using flexible joints (c) using a heavy roof (d) making brittle joints
12. 12.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
14. 14.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
16. 16.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
17. 17.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) hanging outside (d) on the very top
18. 18.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) using flexible joints (d) raising heavy tanks high
19. 19.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) stacking loose bricks (d) keeping a simple shape
20. 20.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) building tall and narrow (d) stacking loose bricks
21. 21.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
22. 22.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) raising heavy tanks high (d) adding cross bracing
23. 23.🔍 Which is the odd one out? (a) fitting rubber base pads (b) keeping a simple shape (c) building tall and narrow (d) having a wide base
24. 24.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) building tall and narrow (d) using flexible joints
25. 25.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
26. 26.🏚️ 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 150 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
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
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 40 cm tall on a 10 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
29. 29.🏚️ Does keeping a simple shape 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) keeping a simple shape (b) using a light roof (c) having a wide base (d) making brittle joints
31. 31.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) leaving out steel bars (d) using a heavy roof
32. 32.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) using a heavy roof (d) using a light roof
33. 33.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) having a wide base (d) adding cross bracing
34. 34.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ 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 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.🏚️ 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 60 cm tall on a 30 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 A (c) tower C
37. 37.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) raising heavy tanks high (d) building tall and narrow
38. 38.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False

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