Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 470 · 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.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
2. 2.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
3. 3.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
5. 5.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a light roof (c) making brittle joints (d) adding cross bracing
7. 7.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) leaving out steel bars (d) using a light roof
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 140 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 B (b) tower C (c) tower A
9. 9.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
10. 10.🏚️ 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 160 cm tall on a 40 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
11. 11.🏚️ 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 240 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
12. 12.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
13. 13.🏚️ 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 10 cm tall on a 10 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
14. 14.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) using flexible joints (d) fitting rubber base pads
15. 15.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🏚️ 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 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
17. 17.🏚️ 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 30 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
18. 18.Which of these makes a building safer in earthquakes? (a) having a wide base (b) using a heavy roof (c) leaving out steel bars (d) stacking loose bricks
19. 19.🏚️ 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 90 cm tall on a 30 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
20. 20.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) having a wide base (c) keeping a simple shape (d) using flexible joints
21. 21.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🔍 Which is the odd one out? (a) adding cross bracing (b) building tall and narrow (c) having a wide base (d) keeping a simple shape
23. 23.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
24. 24.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) stacking loose bricks (d) having a wide base
25. 25.🏚️ 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 160 cm tall on a 40 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
26. 26.🏚️ 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 180 cm tall on a 30 cm base and tower C is 320 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.🏚️ 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 60 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
28. 28.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) using flexible joints (d) stacking loose bricks
29. 29.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) fitting rubber base pads (d) having a wide base
30. 30.🏚️ 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 20 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 A (b) tower C (c) tower B
31. 31.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they bend, not break (d) they stop shaking
33. 33.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
35. 35.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
36. 36.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) using a heavy roof (d) making brittle joints
38. 38.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
39. 39.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
40. 40.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is harder to tip over (d) it is colourful

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