Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 81 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a microscope (d) a fridge
2. 2.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
3. 3.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
4. 4.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
6. 6.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) using a light roof (d) building tall and narrow
7. 7.🏚️ 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
8. 8.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 40 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 having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
11. 11.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) adding cross bracing (d) adding steel to concrete
13. 13.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 90 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 C (b) tower B (c) tower A
15. 15.🏚️ 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 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
16. 16.🏚️ 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 10 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
17. 17.🔍 Which is the odd one out? (a) leaving out steel bars (b) stacking loose bricks (c) raising heavy tanks high (d) adding steel to concrete
18. 18.🏚️ 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 160 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
19. 19.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
21. 21.🏚️ 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 70 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
22. 22.🔍 Which is the odd one out? (a) adding steel to concrete (b) fitting rubber base pads (c) having a wide base (d) using a heavy roof
23. 23.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 240 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 A (b) tower B (c) tower C
24. 24.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
25. 25.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) using a light roof (d) adding cross bracing
27. 27.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) making brittle joints (b) leaving out steel bars (c) raising heavy tanks high (d) having a wide base
29. 29.🏚️ 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 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
30. 30.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using flexible joints (c) leaving out steel bars (d) making brittle joints
31. 31.🏚️ 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 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
32. 32.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
33. 33.🔍 Which is the odd one out? (a) using a light roof (b) building tall and narrow (c) using flexible joints (d) having a wide base
34. 34.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
35. 35.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
36. 36.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) fitting rubber base pads (d) building tall and narrow
37. 37.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) building tall and narrow (d) adding steel to concrete
38. 38.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) fitting rubber base pads (d) making brittle joints
39. 39.🏚️ 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 50 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
40. 40.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) using a heavy roof (d) having a wide base

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