Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 629 · 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.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
2. 2.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) stacking loose bricks (d) fitting rubber base pads
3. 3.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) raising heavy tanks high (d) adding cross bracing
4. 4.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) using a heavy roof (d) using a light roof
5. 5.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ Does using a light roof 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) building tall and narrow (b) making brittle joints (c) using flexible joints (d) raising heavy tanks high
8. 8.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
9. 9.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
10. 10.🏚️ 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 80 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 C (c) tower B
11. 11.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) building tall and narrow (d) using a light roof
12. 12.🏚️ 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 120 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
13. 13.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
14. 14.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
15. 15.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) raising heavy tanks high (d) using flexible joints
16. 16.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) stacking loose bricks (c) raising heavy tanks high (d) adding steel to concrete
18. 18.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) keeping a simple shape (c) using flexible joints (d) using a heavy roof
19. 19.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
20. 20.🏚️ 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 60 cm tall on a 30 cm base and tower C is 200 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
21. 21.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) keeping a simple shape (d) stacking loose bricks
22. 22.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
23. 23.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
25. 25.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
26. 26.🏚️ Does building tall and narrow 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) using a heavy roof (c) raising heavy tanks high (d) having a wide base
28. 28.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
29. 29.Which of these makes a building less safe in earthquakes? (a) stacking loose bricks (b) keeping a simple shape (c) using flexible joints (d) using a light roof
30. 30.🏚️ 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 120 cm tall on a 20 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 C (c) tower A
31. 31.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) leaving out steel bars (d) fitting rubber base pads
32. 32.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) adding steel to concrete (c) using a light roof (d) using flexible joints
33. 33.🏚️ 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 200 cm tall on a 40 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 A (c) tower B
34. 34.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) stacking loose bricks (c) using flexible joints (d) building tall and narrow
35. 35.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
36. 36.🏚️ 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 240 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 C (b) tower B (c) tower A
37. 37.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they stop shaking (c) they look nice (d) they are cheap
38. 38.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) raising heavy tanks high (c) stacking loose bricks (d) adding cross bracing
39. 39.🏚️ 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 160 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 B (c) tower C
40. 40.🏚️ Where should heavy water tanks go in a quake zone? (a) low down (b) hanging outside (c) on a thin pole (d) on the very top

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