Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 134 · 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 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
3. 3.🔍 Which is the odd one out? (a) using a light roof (b) stacking loose bricks (c) fitting rubber base pads (d) using flexible joints
4. 4.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
5. 5.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
6. 6.🔍 Which is the odd one out? (a) using a heavy roof (b) raising heavy tanks high (c) having a wide base (d) leaving out steel bars
7. 7.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
8. 8.🔍 Which is the odd one out? (a) using a light roof (b) using a heavy roof (c) having a wide base (d) keeping a simple shape
9. 9.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🏚️ 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 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
11. 11.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
12. 12.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
15. 15.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) making brittle joints (c) having a wide base (d) using flexible joints
16. 16.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
17. 17.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True
18. 18.🏚️ 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 120 cm tall on a 40 cm base and tower C is 40 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.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is colourful (d) it is taller
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 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 A (c) tower C
21. 21.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🏚️ 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 30 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
23. 23.🏚️ 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
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
25. 25.🏚️ 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 80 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
26. 26.🔍 Which is the odd one out? (a) using flexible joints (b) making brittle joints (c) adding cross bracing (d) having a wide base
27. 27.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) adding steel to concrete (d) raising heavy tanks high
28. 28.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using a heavy roof (c) stacking loose bricks (d) using flexible joints
29. 29.🔍 Which is the odd one out? (a) building tall and narrow (b) raising heavy tanks high (c) adding cross bracing (d) using a heavy roof
30. 30.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) adding steel to concrete (d) raising heavy tanks high
31. 31.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
32. 32.🏚️ 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 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
33. 33.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
35. 35.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) keeping a simple shape (c) having a wide base (d) stacking loose bricks
36. 36.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
38. 38.🏚️ 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 240 cm tall on a 40 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 A (c) tower C
39. 39.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🏚️ 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 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A

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