Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 738 · 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.🏚️ 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 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
2. 2.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 30 cm tall on a 10 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 C (c) tower B
4. 4.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) stacking loose bricks (d) using flexible joints
5. 5.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
7. 7.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
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 having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) making brittle joints (c) building tall and narrow (d) stacking loose bricks
11. 11.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a telescope (d) a fridge
12. 12.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using flexible joints (c) using a light roof (d) fitting rubber base pads
13. 13.🔍 Which is the odd one out? (a) using a heavy roof (b) making brittle joints (c) building tall and narrow (d) using flexible joints
14. 14.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
15. 15.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
16. 16.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they bend, not break (d) they look nice
17. 17.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
18. 18.🔍 Which is the odd one out? (a) building tall and narrow (b) adding steel to concrete (c) keeping a simple shape (d) adding cross bracing
19. 19.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is taller (d) it is colourful
20. 20.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) keeping a simple shape (d) building tall and narrow
21. 21.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) leaving out steel bars (d) adding steel to concrete
22. 22.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🏚️ 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 60 cm tall on a 10 cm base and tower C is 200 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 is the odd one out? (a) making brittle joints (b) building tall and narrow (c) raising heavy tanks high (d) having a wide base
25. 25.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) using a heavy roof (d) adding steel to concrete
26. 26.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🔍 Which is the odd one out? (a) using a light roof (b) keeping a simple shape (c) making brittle joints (d) using flexible joints
28. 28.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) adding cross bracing (d) leaving out steel bars
29. 29.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
30. 30.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) stacking loose bricks (d) using a light roof
31. 31.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 10 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
32. 32.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) stacking loose bricks (d) leaving out steel bars
34. 34.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) using flexible joints (d) stacking loose bricks
35. 35.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
36. 36.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🏚️ 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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
38. 38.🏚️ 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 140 cm tall on a 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
39. 39.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
40. 40.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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