Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 500 · 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 90 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
2. 2.🏚️ 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 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 A (c) tower C
3. 3.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) fitting rubber base pads (d) building tall and narrow
4. 4.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) having a wide base (d) using a heavy roof
5. 5.🏚️ 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 120 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 A (b) tower C (c) tower B
6. 6.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) leaving out steel bars (d) making brittle joints
8. 8.🔍 Which is the odd one out? (a) leaving out steel bars (b) building tall and narrow (c) raising heavy tanks high (d) adding steel to concrete
9. 9.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
10. 10.🏚️ 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 30 cm tall on a 30 cm base and tower C is 60 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.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they are cheap (d) they look nice
12. 12.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
14. 14.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
15. 15.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
16. 16.🏚️ 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 200 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 C (b) tower A (c) tower B
17. 17.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) adding cross bracing (d) making brittle joints
18. 18.🏚️ 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 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
19. 19.🔍 Which is the odd one out? (a) using flexible joints (b) leaving out steel bars (c) raising heavy tanks high (d) building tall and narrow
20. 20.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
21. 21.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) keeping a simple shape (d) stacking loose bricks
24. 24.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is harder to tip over (d) it is taller
25. 25.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding cross bracing (c) having a wide base (d) using a light roof
26. 26.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) on the very top (d) hanging outside
27. 27.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
28. 28.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
30. 30.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) making brittle joints (d) adding cross bracing
32. 32.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ 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 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
36. 36.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
37. 37.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) using a heavy roof (d) adding cross bracing
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 20 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 40 cm base. Which is the easiest 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 60 cm tall on a 20 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
40. 40.🔍 Which is the odd one out? (a) fitting rubber base pads (b) raising heavy tanks high (c) adding steel to concrete (d) using flexible joints

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