Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 393 · 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 having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) keeping a simple shape (d) using flexible joints
3. 3.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using a light roof (c) making brittle joints (d) having a wide base
4. 4.🏚️ 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 10 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
5. 5.🏚️ 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 90 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
6. 6.🏚️ 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 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
7. 7.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they look nice (c) they stop shaking (d) they are cheap
8. 8.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) having a wide base (d) leaving out steel bars
9. 9.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding steel to concrete (c) keeping a simple shape (d) leaving out steel bars
10. 10.🏚️ 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 120 cm tall on a 20 cm base and tower C is 70 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
11. 11.🏚️ Three solid model towers are made of the same material. Tower A is 200 cm tall on a 40 cm wide base, tower B is 180 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
12. 12.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) stacking loose bricks (d) fitting rubber base pads
13. 13.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 20 cm wide base, tower B is 20 cm tall on a 20 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
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 of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) building tall and narrow (c) fitting rubber base pads (d) adding steel to concrete
16. 16.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
17. 17.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
18. 18.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 20 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
20. 20.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) keeping a simple shape (d) raising heavy tanks high
21. 21.🏚️ 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
22. 22.🔍 Which is the odd one out? (a) building tall and narrow (b) keeping a simple shape (c) using a heavy roof (d) making brittle joints
23. 23.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a telescope (c) a shake table (d) a microscope
24. 24.🏚️ 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 10 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
25. 25.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) building tall and narrow (d) using a heavy roof
26. 26.🔍 Which is the odd one out? (a) using flexible joints (b) adding steel to concrete (c) using a light roof (d) raising heavy tanks high
27. 27.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
28. 28.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
30. 30.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) using a light roof (d) adding steel to concrete
31. 31.🏚️ 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 50 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
32. 32.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
33. 33.🏚️ 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 150 cm tall on a 30 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
34. 34.🏚️ 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 80 cm tall on a 40 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
35. 35.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
36. 36.🏚️ 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 20 cm tall on a 20 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 C (c) tower B
37. 37.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) raising heavy tanks high (c) adding cross bracing (d) leaving out steel bars
38. 38.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) keeping a simple shape (d) building tall and narrow
39. 39.🔍 Which is the odd one out? (a) stacking loose bricks (b) using flexible joints (c) adding cross bracing (d) fitting rubber base pads
40. 40.🏚️ 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 140 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 C (b) tower B (c) tower A

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