Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 558 · 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 making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) using flexible joints (d) keeping a simple shape
3. 3.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) using flexible joints (d) building tall and narrow
4. 4.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
6. 6.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🔍 Which is the odd one out? (a) having a wide base (b) keeping a simple shape (c) leaving out steel bars (d) fitting rubber base pads
8. 8.🔍 Which is the odd one out? (a) building tall and narrow (b) stacking loose bricks (c) making brittle joints (d) adding cross bracing
9. 9.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) using a heavy roof (d) using flexible joints
10. 10.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) keeping a simple shape (c) using a heavy roof (d) using a light roof
11. 11.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
12. 12.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) keeping a simple shape (d) stacking loose bricks
15. 15.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) keeping a simple shape (d) using a light roof
16. 16.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) stacking loose bricks (d) adding steel to concrete
17. 17.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) low down (c) on a thin pole (d) on the very top
18. 18.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
19. 19.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) using flexible joints (d) making brittle joints
20. 20.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) making brittle joints (d) stacking loose bricks
21. 21.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
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.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) stacking loose bricks (d) using flexible joints
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 30 cm tall on a 30 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
25. 25.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) building tall and narrow (d) using a light roof
26. 26.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
27. 27.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) having a wide base (c) building tall and narrow (d) stacking loose bricks
28. 28.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) leaving out steel bars (d) using a heavy roof
29. 29.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they bend, not break (c) they stop shaking (d) they look nice
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
32. 32.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
33. 33.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a shake table (d) a microscope
34. 34.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
35. 35.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) adding cross bracing (c) making brittle joints (d) stacking loose bricks
36. 36.🏚️ 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 20 cm tall on a 20 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
37. 37.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True

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