Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 695 · 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 stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
2. 2.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
3. 3.Which of these makes a building safer in earthquakes? (a) having a wide base (b) stacking loose bricks (c) raising heavy tanks high (d) using a heavy roof
4. 4.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) keeping a simple shape (d) raising heavy tanks high
5. 5.🏚️ 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 80 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a microscope (c) a telescope (d) a fridge
7. 7.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) building tall and narrow (d) using a light roof
8. 8.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a heavy roof (c) raising heavy tanks high (d) adding cross bracing
9. 9.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
10. 10.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) fitting rubber base pads (c) adding steel to concrete (d) building tall and narrow
11. 11.🏚️ 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
12. 12.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) using a heavy roof (d) building tall and narrow
14. 14.🏚️ 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 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
15. 15.🏚️ 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 40 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 B (b) tower C (c) tower A
16. 16.🏚️ 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 40 cm tall on a 10 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
17. 17.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they look nice (c) they stop shaking (d) they bend, not break
18. 18.🏚️ 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 20 cm tall on a 20 cm base and tower C is 60 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
19. 19.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
20. 20.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
21. 21.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
22. 22.🔍 Which is the odd one out? (a) using a light roof (b) adding cross bracing (c) having a wide base (d) making brittle joints
23. 23.🏚️ 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 40 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
24. 24.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
25. 25.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) raising heavy tanks high (c) adding steel to concrete (d) keeping a simple shape
28. 28.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
29. 29.🏚️ 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 240 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
30. 30.🏚️ 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 120 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
31. 31.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) leaving out steel bars (c) making brittle joints (d) keeping a simple shape
32. 32.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) raising heavy tanks high (d) keeping a simple shape
33. 33.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
34. 34.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
35. 35.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
37. 37.🏚️ 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 30 cm base and tower C is 200 cm tall on a 40 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) stacking loose bricks (b) adding cross bracing (c) adding steel to concrete (d) using a light roof
39. 39.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
40. 40.🔍 Which is the odd one out? (a) stacking loose bricks (b) making brittle joints (c) fitting rubber base pads (d) building tall and narrow

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