Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 414 · 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 120 cm tall on a 20 cm wide base, tower B is 150 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 A (b) tower B (c) tower C
2. 2.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
3. 3.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) using flexible joints (c) using a heavy roof (d) leaving out steel bars
4. 4.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) using flexible joints (d) using a heavy roof
7. 7.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 20 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
8. 8.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) using a heavy roof (d) stacking loose bricks
9. 9.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding cross bracing (c) fitting rubber base pads (d) making brittle joints
10. 10.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) stacking loose bricks (d) adding steel to concrete
12. 12.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) raising heavy tanks high (c) having a wide base (d) using a light roof
13. 13.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
14. 14.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) fitting rubber base pads (c) using a heavy roof (d) making brittle joints
15. 15.🏚️ 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 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
16. 16.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
17. 17.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
18. 18.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ 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 60 cm tall on a 20 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
20. 20.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
21. 21.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) using a heavy roof (d) leaving out steel bars
22. 22.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
23. 23.🏚️ 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
24. 24.🏚️ Does using a light roof 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.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
27. 27.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) leaving out steel bars (d) adding cross bracing
28. 28.🏚️ 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 20 cm tall on a 20 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 B (c) tower C
29. 29.🏚️ 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 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
30. 30.🏚️ 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 40 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
31. 31.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) making brittle joints (d) keeping a simple shape
32. 32.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ 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 80 cm tall on a 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
34. 34.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) having a wide base (c) adding cross bracing (d) using flexible joints
35. 35.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a microscope (d) a shake table
37. 37.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
39. 39.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they stop shaking (d) they are cheap
40. 40.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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