Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 196 · 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.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) making brittle joints (d) building tall and narrow
3. 3.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
4. 4.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) using flexible joints (d) having a wide base
5. 5.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) using a light roof (d) fitting rubber base pads
6. 6.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
7. 7.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) leaving out steel bars (d) adding cross bracing
8. 8.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.🏚️ 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 40 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
11. 11.🏚️ 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
12. 12.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) using a heavy roof (d) making brittle joints
13. 13.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) building tall and narrow (d) keeping a simple shape
14. 14.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
15. 15.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) raising heavy tanks high (d) stacking loose bricks
17. 17.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) leaving out steel bars (d) adding cross bracing
18. 18.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) building tall and narrow (d) adding cross bracing
19. 19.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding cross bracing (c) raising heavy tanks high (d) using flexible joints
20. 20.🔍 Which is the odd one out? (a) making brittle joints (b) adding steel to concrete (c) leaving out steel bars (d) stacking loose bricks
21. 21.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) adding cross bracing (c) using a light roof (d) having a wide base
23. 23.🏚️ 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 10 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) leaving out steel bars (d) stacking loose bricks
25. 25.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
26. 26.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
27. 27.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) raising heavy tanks high (d) building tall and narrow
28. 28.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) making brittle joints (b) using flexible joints (c) building tall and narrow (d) using a heavy roof
30. 30.🏚️ 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 120 cm tall on a 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.True or false: using flexible joints makes a building safer in earthquakes. (a) False (b) True
32. 32.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) fitting rubber base pads (d) leaving out steel bars
33. 33.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) having a wide base (d) building tall and narrow
34. 34.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) using a light roof (d) using a heavy roof
35. 35.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
36. 36.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ 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 160 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 B (c) tower C
38. 38.🏚️ 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 30 cm tall on a 10 cm base and tower C is 280 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.🏚️ 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 40 cm tall on a 20 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) adding steel to concrete (b) fitting rubber base pads (c) adding cross bracing (d) making brittle joints

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