Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 137 · 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.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) adding cross bracing (d) leaving out steel bars
2. 2.🏚️ 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 40 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
3. 3.🔍 Which is the odd one out? (a) adding steel to concrete (b) building tall and narrow (c) using a light roof (d) keeping a simple shape
4. 4.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
5. 5.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) having a wide base (d) using a heavy roof
6. 6.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) raising heavy tanks high (d) using a light roof
7. 7.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) adding cross bracing (d) having a wide base
8. 8.🏚️ 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 60 cm tall on a 20 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
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on the very top (d) on a thin pole
10. 10.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) making brittle joints (d) adding cross bracing
11. 11.🔍 Which is the odd one out? (a) using a heavy roof (b) adding steel to concrete (c) keeping a simple shape (d) using flexible joints
12. 12.🏚️ 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 40 cm tall on a 40 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 B (c) tower A
13. 13.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a microscope (d) a shake table
16. 16.🏚️ 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 200 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
17. 17.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) having a wide base (c) making brittle joints (d) leaving out steel bars
18. 18.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) adding steel to concrete (d) making brittle joints
19. 19.🏚️ 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 30 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 B (b) tower C (c) tower A
20. 20.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is colourful (d) it is harder to tip over
21. 21.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) adding cross bracing (d) building tall and narrow
22. 22.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.True or false: building tall and narrow makes a building less safe in earthquakes. (a) False (b) True
24. 24.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
25. 25.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
26. 26.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) raising heavy tanks high (d) adding steel to concrete
28. 28.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) stacking loose bricks (d) adding steel to concrete
29. 29.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
30. 30.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) raising heavy tanks high (d) using flexible joints
31. 31.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
32. 32.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) having a wide base (d) leaving out steel bars
33. 33.🏚️ 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
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🏚️ 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 20 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
36. 36.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
37. 37.🏚️ 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 210 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
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 30 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🏚️ 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 80 cm tall on a 40 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
40. 40.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) making brittle joints (c) raising heavy tanks high (d) using a heavy roof

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