Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 130 · 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.🔍 Which is the odd one out? (a) keeping a simple shape (b) raising heavy tanks high (c) using a heavy roof (d) leaving out steel bars
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
3. 3.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is lighter (d) it is taller
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ 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 200 cm tall on a 40 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
6. 6.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
7. 7.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) keeping a simple shape (c) using a light roof (d) adding steel to concrete
8. 8.🏚️ 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 150 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
9. 9.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
10. 10.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) adding cross bracing (d) stacking loose bricks
11. 11.🏚️ 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 10 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 A (b) tower C (c) tower B
12. 12.Which of these makes a building safer in earthquakes? (a) using a light roof (b) stacking loose bricks (c) raising heavy tanks high (d) using a heavy roof
13. 13.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
14. 14.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
15. 15.🔍 Which is the odd one out? (a) raising heavy tanks high (b) leaving out steel bars (c) using flexible joints (d) making brittle joints
16. 16.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🔍 Which is the odd one out? (a) using flexible joints (b) adding cross bracing (c) keeping a simple shape (d) using a heavy roof
18. 18.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
20. 20.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
22. 22.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🔍 Which is the odd one out? (a) adding steel to concrete (b) having a wide base (c) building tall and narrow (d) fitting rubber base pads
24. 24.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) building tall and narrow (d) adding steel to concrete
25. 25.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) fitting rubber base pads (c) keeping a simple shape (d) having a wide base
26. 26.🏚️ 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 240 cm tall on a 40 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
27. 27.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
28. 28.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) raising heavy tanks high (d) adding steel to concrete
29. 29.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) leaving out steel bars (d) keeping a simple shape
30. 30.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
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 10 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
32. 32.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
33. 33.🏚️ Does making brittle joints 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 60 cm tall on a 10 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
35. 35.🏚️ 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 60 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 B (b) tower A (c) tower C
36. 36.🏚️ 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 320 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 C (c) tower A
37. 37.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) building tall and narrow (c) using flexible joints (d) raising heavy tanks high
38. 38.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
39. 39.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) having a wide base (d) using flexible joints
40. 40.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using a light roof (c) keeping a simple shape (d) fitting rubber base pads

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