Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 341 · 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.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
2. 2.🏚️ 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 90 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
3. 3.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) leaving out steel bars (d) stacking loose bricks
4. 4.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) having a wide base (d) using a light roof
5. 5.🏚️ 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 30 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
6. 6.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) keeping a simple shape (d) building tall and narrow
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 210 cm tall on a 30 cm wide base, tower B is 80 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 C (b) tower B (c) tower A
9. 9.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) using a heavy roof (d) having a wide base
10. 10.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
11. 11.🏚️ 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 60 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
12. 12.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is lighter (d) it is colourful
15. 15.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) having a wide base (c) adding steel to concrete (d) using flexible joints
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 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
17. 17.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) adding cross bracing (d) making brittle joints
18. 18.🏚️ 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 easiest to tip over? (a) tower A (b) tower B (c) tower C
19. 19.🔍 Which is the odd one out? (a) leaving out steel bars (b) raising heavy tanks high (c) building tall and narrow (d) having a wide base
20. 20.🏚️ 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 30 cm tall on a 10 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
21. 21.🔍 Which is the odd one out? (a) using flexible joints (b) leaving out steel bars (c) building tall and narrow (d) using a heavy roof
22. 22.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) using flexible joints (d) adding cross bracing
23. 23.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
24. 24.🏚️ 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 90 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
25. 25.🔍 Which is the odd one out? (a) having a wide base (b) raising heavy tanks high (c) using a light roof (d) using flexible joints
26. 26.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
27. 27.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a heavy roof (c) using a light roof (d) keeping a simple shape
28. 28.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
29. 29.🏚️ 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
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 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.🔍 Which is the odd one out? (a) adding cross bracing (b) using flexible joints (c) using a light roof (d) leaving out steel bars
32. 32.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) building tall and narrow (d) adding cross bracing
33. 33.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ 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 120 cm tall on a 30 cm base and tower C is 320 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) using a heavy roof (d) stacking loose bricks
36. 36.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 30 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 C (b) tower A (c) tower B
39. 39.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they look nice (d) they are cheap
40. 40.🏚️ 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 40 cm tall on a 40 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

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