Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 689 · 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.🏚️ 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
2. 2.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) building tall and narrow (d) adding steel to concrete
5. 5.🏚️ 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 30 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
6. 6.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
7. 7.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.Which of these makes a building safer in earthquakes? (a) using a light roof (b) leaving out steel bars (c) raising heavy tanks high (d) making brittle joints
9. 9.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ Three solid model towers are made of the same material. Tower A is 280 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 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
16. 16.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) leaving out steel bars (d) having a wide base
17. 17.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding cross bracing (c) using a light roof (d) having a wide base
18. 18.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) stacking loose bricks (d) making brittle joints
19. 19.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) building tall and narrow (b) adding cross bracing (c) adding steel to concrete (d) using flexible joints
21. 21.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) leaving out steel bars (d) using flexible joints
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 180 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
23. 23.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
24. 24.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
26. 26.🏚️ 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 120 cm tall on a 30 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 A (c) tower C
27. 27.🏚️ Does raising heavy tanks high 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.🔍 Which is the odd one out? (a) raising heavy tanks high (b) fitting rubber base pads (c) having a wide base (d) keeping a simple shape
30. 30.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) stacking loose bricks (d) using a light roof
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
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 80 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
34. 34.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) adding cross bracing (d) using a light roof
35. 35.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) building tall and narrow (d) adding cross bracing
36. 36.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) raising heavy tanks high (d) using a light roof
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 100 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 30 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 C (b) tower B (c) tower A
39. 39.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) using a light roof (d) keeping a simple shape
40. 40.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a heavy roof (c) adding cross bracing (d) leaving out steel bars

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