Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 335 · 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) stacking loose bricks (b) building tall and narrow (c) raising heavy tanks high (d) using flexible joints
2. 2.🔍 Which is the odd one out? (a) adding cross bracing (b) using flexible joints (c) using a light roof (d) building tall and narrow
3. 3.🏚️ 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 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
4. 4.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
5. 5.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
6. 6.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
9. 9.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) having a wide base (d) using a heavy roof
10. 10.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) raising heavy tanks high (d) fitting rubber base pads
11. 11.🏚️ 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 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
12. 12.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) adding cross bracing (d) making brittle joints
13. 13.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) using a light roof (d) using flexible joints
14. 14.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) having a wide base (c) raising heavy tanks high (d) making brittle joints
15. 15.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) leaving out steel bars (d) raising heavy tanks high
16. 16.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
17. 17.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
18. 18.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using a light roof (c) building tall and narrow (d) leaving out steel bars
19. 19.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
20. 20.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
21. 21.🏚️ 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 120 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
22. 22.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) using flexible joints (d) using a light roof
23. 23.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
24. 24.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) making brittle joints (d) leaving out steel bars
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.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) using flexible joints (d) stacking loose bricks
29. 29.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is colourful (d) it is lighter
30. 30.🏚️ 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 40 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) using a heavy roof (d) using flexible joints
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 180 cm tall on a 30 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
34. 34.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) using a heavy roof (d) leaving out steel bars
37. 37.🏚️ 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 20 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.🏚️ 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 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🏚️ 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 240 cm tall on a 40 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 C (c) tower A
40. 40.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a microscope (d) a fridge

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