Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 758 · 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: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
2. 2.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
4. 4.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) leaving out steel bars (c) making brittle joints (d) using a heavy roof
5. 5.🏚️ 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 200 cm tall on a 40 cm base and tower C is 140 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
6. 6.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
7. 7.🏚️ 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 200 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 A (c) tower C
8. 8.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they look nice (c) they bend, not break (d) they are cheap
10. 10.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) fitting rubber base pads (d) adding steel to concrete
11. 11.🔍 Which is the odd one out? (a) keeping a simple shape (b) fitting rubber base pads (c) using flexible joints (d) building tall and narrow
12. 12.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) adding cross bracing (d) building tall and narrow
13. 13.🔍 Which is the odd one out? (a) using flexible joints (b) leaving out steel bars (c) adding cross bracing (d) using a light roof
14. 14.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.🔍 Which is the odd one out? (a) fitting rubber base pads (b) raising heavy tanks high (c) using flexible joints (d) adding cross bracing
16. 16.🏚️ 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 60 cm tall on a 30 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
17. 17.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) keeping a simple shape (d) leaving out steel bars
18. 18.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
20. 20.🔍 Which is the odd one out? (a) leaving out steel bars (b) having a wide base (c) making brittle joints (d) building tall and narrow
21. 21.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on a thin pole (c) on the very top (d) low down
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) making brittle joints (b) using flexible joints (c) keeping a simple shape (d) fitting rubber base pads
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 60 cm tall on a 10 cm base and tower C is 40 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
25. 25.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) having a wide base (c) adding steel to concrete (d) using a heavy roof
26. 26.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
27. 27.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) fitting rubber base pads (c) using a heavy roof (d) raising heavy tanks high
28. 28.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) fitting rubber base pads (c) having a wide base (d) raising heavy tanks high
29. 29.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) adding cross bracing (c) having a wide base (d) stacking loose bricks
30. 30.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 210 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
34. 34.🏚️ 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 20 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
35. 35.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
36. 36.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
37. 37.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) leaving out steel bars (d) having a wide base
38. 38.🏚️ 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 200 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🔍 Which is the odd one out? (a) building tall and narrow (b) fitting rubber base pads (c) using a heavy roof (d) raising heavy tanks high
40. 40.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) making brittle joints (d) having a wide base

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