Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 34 · 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 150 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
2. 2.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) keeping a simple shape (d) leaving out steel bars
3. 3.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) using flexible joints (d) making brittle joints
4. 4.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
7. 7.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) building tall and narrow (d) adding cross bracing
8. 8.🏚️ 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 90 cm tall on a 30 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
9. 9.🏚️ 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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
10. 10.🏚️ 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 160 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 A (b) tower C (c) tower B
11. 11.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
12. 12.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
13. 13.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
15. 15.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) using flexible joints (d) raising heavy tanks high
16. 16.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 60 cm tall on a 30 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
17. 17.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
19. 19.🔍 Which is the odd one out? (a) building tall and narrow (b) having a wide base (c) using a heavy roof (d) stacking loose bricks
20. 20.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is colourful (c) it is lighter (d) it is taller
21. 21.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
23. 23.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on a thin pole (d) on the very top
24. 24.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding steel to concrete (c) fitting rubber base pads (d) adding cross bracing
25. 25.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) using a heavy roof (d) using flexible joints
26. 26.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) having a wide base (c) building tall and narrow (d) making brittle joints
28. 28.🏚️ 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 60 cm tall on a 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
29. 29.🏚️ 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 10 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
30. 30.🔍 Which is the odd one out? (a) using a heavy roof (b) adding steel to concrete (c) adding cross bracing (d) having a wide base
31. 31.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) using a heavy roof (d) leaving out steel bars
32. 32.🏚️ 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 60 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
33. 33.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a heavy roof (c) using a light roof (d) fitting rubber base pads
34. 34.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
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 240 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
36. 36.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) using a light roof (d) building tall and narrow
37. 37.🔍 Which is the odd one out? (a) making brittle joints (b) using a light roof (c) having a wide base (d) using flexible joints
38. 38.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
39. 39.🏚️ 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 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) keeping a simple shape (c) using a heavy roof (d) stacking loose bricks

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