Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 760 · 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 180 cm tall on a 30 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 320 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
2. 2.🔍 Which is the odd one out? (a) making brittle joints (b) fitting rubber base pads (c) building tall and narrow (d) leaving out steel bars
3. 3.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) adding cross bracing (d) adding steel to concrete
4. 4.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a telescope (d) a fridge
5. 5.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
8. 8.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) stacking loose bricks (c) using a heavy roof (d) leaving out steel bars
10. 10.🏚️ 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 280 cm tall on a 40 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
11. 11.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
12. 12.🏚️ 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 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) on a thin pole (d) low down
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 120 cm tall on a 30 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
15. 15.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) using flexible joints (d) raising heavy tanks high
16. 16.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) using a light roof (d) stacking loose bricks
17. 17.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) stacking loose bricks (c) building tall and narrow (d) keeping a simple shape
18. 18.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) making brittle joints (d) using flexible joints
19. 19.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) using a heavy roof (c) adding cross bracing (d) having a wide base
20. 20.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) keeping a simple shape (d) leaving out steel bars
21. 21.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is colourful (d) it is taller
22. 22.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) adding steel to concrete (d) raising heavy tanks high
23. 23.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) having a wide base (c) fitting rubber base pads (d) stacking loose bricks
24. 24.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
25. 25.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
26. 26.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
27. 27.🏚️ 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 100 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 C (b) tower A (c) tower B
28. 28.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
29. 29.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🏚️ 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 20 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
31. 31.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using a light roof (c) keeping a simple shape (d) fitting rubber base pads
32. 32.🏚️ 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 20 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.🏚️ Does using flexible joints 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 30 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
36. 36.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) keeping a simple shape (d) leaving out steel bars
37. 37.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) using a light roof (d) leaving out steel bars
38. 38.🏚️ 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 20 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
40. 40.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) using a heavy roof (d) building tall and narrow

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