Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 997 · 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) leaving out steel bars (b) using a light roof (c) using flexible joints (d) keeping a simple shape
2. 2.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) making brittle joints (d) fitting rubber base pads
3. 3.🏚️ 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 40 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
4. 4.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) using a heavy roof (d) using flexible joints
5. 5.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) keeping a simple shape (c) making brittle joints (d) having a wide base
7. 7.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a microscope (c) a shake table (d) a telescope
8. 8.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
9. 9.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) building tall and narrow (c) keeping a simple shape (d) using flexible joints
10. 10.🏚️ 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 40 cm tall on a 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
11. 11.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding cross bracing (c) stacking loose bricks (d) using a heavy roof
13. 13.🏚️ 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 30 cm tall on a 10 cm base and tower C is 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
14. 14.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) low down (c) hanging outside (d) on a thin pole
16. 16.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) adding steel to concrete (d) fitting rubber base pads
17. 17.🔍 Which is the odd one out? (a) stacking loose bricks (b) adding steel to concrete (c) building tall and narrow (d) raising heavy tanks high
18. 18.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) using a heavy roof (d) using flexible joints
20. 20.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is taller (c) it is colourful (d) it is lighter
21. 21.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
22. 22.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) using flexible joints (d) leaving out steel bars
23. 23.True or false: adding steel to concrete makes a building safer in earthquakes. (a) True (b) False
24. 24.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
25. 25.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
26. 26.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.🔍 Which is the odd one out? (a) making brittle joints (b) raising heavy tanks high (c) building tall and narrow (d) adding cross bracing
28. 28.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.🏚️ 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 60 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
30. 30.🏚️ 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 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.🏚️ 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 40 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 B (c) tower C
32. 32.🏚️ 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 150 cm tall on a 30 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they are cheap (d) they stop shaking
34. 34.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
35. 35.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🔍 Which is the odd one out? (a) building tall and narrow (b) making brittle joints (c) using flexible joints (d) using a heavy roof
37. 37.🏚️ 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 60 cm tall on a 20 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 B (c) tower A
38. 38.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) leaving out steel bars (d) using a heavy roof
39. 39.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) using flexible joints (d) raising heavy tanks high
40. 40.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) keeping a simple shape (d) leaving out steel bars

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