Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 263 · 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 10 cm tall on a 10 cm wide base, tower B is 160 cm tall on a 40 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
2. 2.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) keeping a simple shape (d) raising heavy tanks high
3. 3.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🔍 Which is the odd one out? (a) adding steel to concrete (b) raising heavy tanks high (c) using a heavy roof (d) building tall and narrow
5. 5.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) making brittle joints (d) adding cross bracing
6. 6.True or false: having a wide base 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) safer in earthquakes (b) less safe
8. 8.🏚️ 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 80 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
9. 9.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) adding cross bracing (d) using a heavy roof
10. 10.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) using a light roof (d) fitting rubber base pads
11. 11.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) adding cross bracing (d) building tall and narrow
12. 12.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) on a thin pole (c) low down (d) hanging outside
13. 13.🏚️ 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 10 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 40 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 C (b) tower B (c) tower A
15. 15.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
17. 17.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.🏚️ 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 50 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
19. 19.🏚️ 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 150 cm tall on a 30 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
20. 20.🏚️ 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 240 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) making brittle joints (d) using a light roof
22. 22.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) using flexible joints (d) fitting rubber base pads
23. 23.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🏚️ 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
25. 25.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
27. 27.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🏚️ 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 30 cm tall on a 10 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
29. 29.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
30. 30.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a heavy roof (c) building tall and narrow (d) adding steel to concrete
31. 31.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ 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 40 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
33. 33.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) fitting rubber base pads (d) building tall and narrow
34. 34.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) using flexible joints (d) building tall and narrow
35. 35.🏚️ 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 100 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
36. 36.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🔍 Which is the odd one out? (a) fitting rubber base pads (b) leaving out steel bars (c) stacking loose bricks (d) raising heavy tanks high
38. 38.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) using flexible joints (d) leaving out steel bars
39. 39.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False

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