Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 158 · 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 raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ 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 40 cm tall on a 10 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
3. 3.🏚️ 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 20 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
4. 4.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) fitting rubber base pads (c) having a wide base (d) using a heavy roof
5. 5.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) using a light roof (d) making brittle joints
6. 6.🏚️ 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 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 B (b) tower C (c) tower A
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
8. 8.🔍 Which is the odd one out? (a) using a heavy roof (b) adding cross bracing (c) stacking loose bricks (d) leaving out steel bars
9. 9.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) leaving out steel bars (d) adding steel to concrete
10. 10.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) leaving out steel bars (d) fitting rubber base pads
12. 12.🏚️ 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 40 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
13. 13.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 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 easiest to tip over? (a) tower C (b) tower B (c) tower A
16. 16.🏚️ 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 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 A (b) tower B (c) tower C
17. 17.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
18. 18.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 30 cm tall on a 10 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
20. 20.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
21. 21.Which of these makes a building safer in earthquakes? (a) using a light roof (b) stacking loose bricks (c) raising heavy tanks high (d) using a heavy roof
22. 22.🏚️ 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 240 cm tall on a 40 cm base and tower C is 160 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
23. 23.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
24. 24.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) fitting rubber base pads (d) using flexible joints
25. 25.🏚️ 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 150 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
26. 26.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) adding cross bracing (d) using flexible joints
27. 27.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
30. 30.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) building tall and narrow (d) adding cross bracing
34. 34.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) fitting rubber base pads (d) using a light roof
35. 35.🏚️ 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 20 cm tall on a 20 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.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) fitting rubber base pads (d) raising heavy tanks high
38. 38.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
39. 39.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) having a wide base (d) making brittle joints

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