Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 610 · 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.🏚️ 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 50 cm tall on a 10 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
2. 2.🏚️ 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 120 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
3. 3.🔍 Which is the odd one out? (a) raising heavy tanks high (b) keeping a simple shape (c) using a heavy roof (d) building tall and narrow
4. 4.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) fitting rubber base pads (d) raising heavy tanks high
5. 5.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ Does using flexible joints 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 a light roof (b) keeping a simple shape (c) building tall and narrow (d) having a wide base
8. 8.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
9. 9.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) stacking loose bricks (d) leaving out steel bars
10. 10.True or false: building tall and narrow makes a building safer in earthquakes. (a) False (b) True
11. 11.🔍 Which is the odd one out? (a) using flexible joints (b) making brittle joints (c) raising heavy tanks high (d) stacking loose bricks
12. 12.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a shake table (c) a fridge (d) a microscope
13. 13.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
15. 15.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
17. 17.🏚️ 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 30 cm tall on a 30 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
18. 18.🔍 Which is the odd one out? (a) using a light roof (b) using a heavy roof (c) stacking loose bricks (d) raising heavy tanks high
19. 19.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) fitting rubber base pads (d) having a wide base
20. 20.🏚️ 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
21. 21.🏚️ Why is a wide base safer? (a) it is lighter (b) it is taller (c) it is harder to tip over (d) it is colourful
22. 22.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
23. 23.🏚️ 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 100 cm tall on a 20 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
24. 24.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
25. 25.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) raising heavy tanks high (d) keeping a simple shape
26. 26.True or false: adding cross bracing makes a building less safe in earthquakes. (a) False (b) True
27. 27.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 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 easiest to tip over? (a) tower B (b) tower C (c) tower A
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: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
30. 30.🔍 Which is the odd one out? (a) using a heavy roof (b) keeping a simple shape (c) using flexible joints (d) using a light roof
31. 31.Which of these makes a building less safe in earthquakes? (a) making brittle joints (b) having a wide base (c) using flexible joints (d) adding cross bracing
32. 32.🏚️ 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 90 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
33. 33.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) stacking loose bricks (c) adding cross bracing (d) using flexible joints
34. 34.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
35. 35.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) adding cross bracing (d) building tall and narrow
36. 36.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
37. 37.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) using a light roof (d) having a wide base
38. 38.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
40. 40.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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