Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 600 · 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) adding cross bracing (b) using flexible joints (c) leaving out steel bars (d) fitting rubber base pads
2. 2.🏚️ 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 20 cm tall on a 20 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
3. 3.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) keeping a simple shape (c) using a heavy roof (d) building tall and narrow
4. 4.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) using a heavy roof (d) adding steel to concrete
5. 5.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) adding cross bracing (d) making brittle joints
6. 6.🏚️ 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
7. 7.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
9. 9.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) having a wide base (d) making brittle joints
11. 11.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) adding steel to concrete (d) stacking loose bricks
12. 12.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
13. 13.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
14. 14.Which of these makes a building safer in earthquakes? (a) having a wide base (b) leaving out steel bars (c) making brittle joints (d) raising heavy tanks high
15. 15.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
16. 16.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
17. 17.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🏚️ 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
19. 19.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) raising heavy tanks high (d) fitting rubber base pads
22. 22.🏚️ 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 10 cm tall on a 10 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
23. 23.🏚️ 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 60 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 A (c) tower C
24. 24.🔍 Which is the odd one out? (a) adding cross bracing (b) using a light roof (c) fitting rubber base pads (d) building tall and narrow
25. 25.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding cross bracing (c) making brittle joints (d) stacking loose bricks
27. 27.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
28. 28.🏚️ 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 160 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
29. 29.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🔍 Which is the odd one out? (a) adding cross bracing (b) having a wide base (c) keeping a simple shape (d) using a heavy roof
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) adding steel to concrete (b) raising heavy tanks high (c) fitting rubber base pads (d) adding cross bracing
33. 33.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) making brittle joints (d) using flexible joints
34. 34.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 30 cm wide base, tower B is 240 cm tall on a 40 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 A (c) tower C
35. 35.🏚️ 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 50 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 B (b) tower A (c) tower C
36. 36.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
38. 38.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) making brittle joints (d) using a heavy roof
39. 39.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🏚️ 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 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B

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