Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 258 · 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.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) on the very top (d) low down
2. 2.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ 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 120 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they stop shaking (d) they look nice
5. 5.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a heavy roof (c) keeping a simple shape (d) fitting rubber base pads
6. 6.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
7. 7.🏚️ 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 180 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
8. 8.🏚️ 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 80 cm tall on a 40 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
9. 9.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a fridge (d) a microscope
10. 10.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding cross bracing (c) adding steel to concrete (d) keeping a simple shape
12. 12.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) leaving out steel bars (d) keeping a simple shape
14. 14.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
15. 15.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
16. 16.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.Which of these makes a building safer in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) using a heavy roof (d) making brittle joints
18. 18.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) adding cross bracing (d) stacking loose bricks
21. 21.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
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 120 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 A (b) tower B (c) tower C
23. 23.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
24. 24.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) leaving out steel bars (d) using flexible joints
25. 25.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
26. 26.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) making brittle joints (d) using a heavy roof
27. 27.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) fitting rubber base pads (d) leaving out steel bars
28. 28.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) fitting rubber base pads (d) making brittle joints
29. 29.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) adding cross bracing (d) leaving out steel bars
31. 31.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) using a light roof (d) fitting rubber base pads
34. 34.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) keeping a simple shape (c) leaving out steel bars (d) making brittle joints
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 150 cm tall on a 30 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
36. 36.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) building tall and narrow (d) leaving out steel bars
37. 37.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
38. 38.🔍 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
39. 39.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) having a wide base (d) raising heavy tanks high
40. 40.🏚️ 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 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A

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