Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 293 · 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) using a light roof (b) using flexible joints (c) building tall and narrow (d) having a wide base
2. 2.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
4. 4.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) on a thin pole (c) on the very top (d) hanging outside
5. 5.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
7. 7.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
8. 8.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) having a wide base (d) making brittle joints
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) using a heavy roof (d) keeping a simple shape
12. 12.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a light roof (c) building tall and narrow (d) making brittle joints
13. 13.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) keeping a simple shape (d) fitting rubber base pads
15. 15.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) adding steel to concrete (d) leaving out steel bars
16. 16.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
17. 17.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a fridge (d) a shake table
18. 18.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) adding cross bracing (d) using a light roof
20. 20.🔍 Which is the odd one out? (a) leaving out steel bars (b) using a heavy roof (c) stacking loose bricks (d) fitting rubber base pads
21. 21.🏚️ Does using flexible joints 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) keeping a simple shape (b) using a light roof (c) fitting rubber base pads (d) building tall and narrow
23. 23.🏚️ 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 90 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
24. 24.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) adding steel to concrete (c) using a heavy roof (d) having a wide base
25. 25.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they are cheap (d) they bend, not break
26. 26.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) building tall and narrow (d) using flexible joints
27. 27.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
28. 28.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) stacking loose bricks (d) having a wide base
30. 30.🏚️ 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 210 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
31. 31.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) adding steel to concrete (c) raising heavy tanks high (d) having a wide base
32. 32.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) making brittle joints (d) adding steel to concrete
33. 33.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) leaving out steel bars (d) using flexible joints
34. 34.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) using flexible joints (d) building tall and narrow
35. 35.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
36. 36.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) leaving out steel bars (d) making brittle joints
37. 37.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
38. 38.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) adding steel to concrete (d) building tall and narrow
39. 39.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
40. 40.🏚️ 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 40 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

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