Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 881 · 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 of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) using a heavy roof (d) keeping a simple shape
2. 2.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
3. 3.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) fitting rubber base pads (c) using a heavy roof (d) making brittle joints
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 20 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
5. 5.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
6. 6.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) building tall and narrow (d) adding cross bracing
8. 8.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
9. 9.🏚️ 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 240 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
10. 10.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) using a light roof (d) building tall and narrow
11. 11.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) stacking loose bricks (c) fitting rubber base pads (d) adding steel to concrete
12. 12.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
13. 13.🔍 Which is the odd one out? (a) using a heavy roof (b) building tall and narrow (c) keeping a simple shape (d) making brittle joints
14. 14.🔍 Which is the odd one out? (a) raising heavy tanks high (b) having a wide base (c) building tall and narrow (d) leaving out steel bars
15. 15.🏚️ 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 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 A (b) tower B (c) tower C
16. 16.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) hanging outside (d) low down
17. 17.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) keeping a simple shape (c) using flexible joints (d) fitting rubber base pads
18. 18.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) adding steel to concrete (c) stacking loose bricks (d) leaving out steel bars
19. 19.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
20. 20.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) keeping a simple shape (d) making brittle joints
21. 21.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) keeping a simple shape (d) using a light roof
22. 22.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) using a heavy roof (c) adding cross bracing (d) stacking loose bricks
23. 23.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🏚️ 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 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 B (b) tower C (c) tower A
25. 25.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
26. 26.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
27. 27.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
29. 29.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
30. 30.🏚️ 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 10 cm base and tower C is 320 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
31. 31.🏚️ 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 40 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 C (c) tower B
32. 32.🏚️ 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 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False
34. 34.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a microscope (c) a shake table (d) a fridge
35. 35.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
36. 36.🏚️ Why is a wide base safer? (a) it is taller (b) it is colourful (c) it is harder to tip over (d) it is lighter
37. 37.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) raising heavy tanks high (d) adding steel to concrete
38. 38.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) keeping a simple shape (d) leaving out steel bars
39. 39.🏚️ 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 80 cm tall on a 20 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
40. 40.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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