Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 673 · 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 120 cm tall on a 40 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
2. 2.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
3. 3.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) adding steel to concrete (d) having a wide base
4. 4.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) having a wide base (d) building tall and narrow
5. 5.🏚️ Does having a wide base 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 60 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
7. 7.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) using flexible joints (d) raising heavy tanks high
8. 8.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using flexible joints (c) leaving out steel bars (d) adding steel to concrete
10. 10.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
11. 11.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) making brittle joints (d) leaving out steel bars
12. 12.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
14. 14.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) having a wide base (d) building tall and narrow
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they are cheap (d) they bend, not break
17. 17.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
18. 18.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
19. 19.🏚️ 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 70 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 B (b) tower A (c) tower C
20. 20.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
21. 21.🏚️ 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 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
22. 22.🔍 Which is the odd one out? (a) adding cross bracing (b) having a wide base (c) keeping a simple shape (d) leaving out steel bars
23. 23.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) fitting rubber base pads (d) building tall and narrow
25. 25.🏚️ 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 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
26. 26.🏚️ 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 30 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 B (b) tower C (c) tower A
27. 27.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
28. 28.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
29. 29.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
30. 30.🏚️ 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 80 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
32. 32.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
33. 33.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
34. 34.🏚️ 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 80 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
35. 35.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) using a light roof (d) raising heavy tanks high
36. 36.🏚️ 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 120 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
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 40 cm tall on a 40 cm wide base, tower B is 60 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
39. 39.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) using a light roof (c) having a wide base (d) keeping a simple shape
40. 40.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes

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