Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 766 · 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 20 cm tall on a 10 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
2. 2.🏚️ 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 210 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
3. 3.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) stacking loose bricks (d) raising heavy tanks high
4. 4.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
5. 5.🏚️ 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 40 cm tall on a 10 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
6. 6.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) keeping a simple shape (c) making brittle joints (d) using a light roof
7. 7.🏚️ 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 200 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
8. 8.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ 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 60 cm tall on a 10 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
10. 10.🔍 Which is the odd one out? (a) having a wide base (b) using flexible joints (c) adding cross bracing (d) using a heavy roof
11. 11.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
12. 12.🔍 Which is the odd one out? (a) building tall and narrow (b) using a light roof (c) having a wide base (d) adding steel to concrete
13. 13.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) keeping a simple shape (d) using a heavy roof
14. 14.🔍 Which is the odd one out? (a) adding steel to concrete (b) leaving out steel bars (c) keeping a simple shape (d) using flexible joints
15. 15.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
16. 16.🏚️ 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 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 A (c) tower C
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 20 cm tall on a 20 cm wide base, tower B is 80 cm tall on a 40 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
18. 18.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) building tall and narrow (c) raising heavy tanks high (d) having a wide base
20. 20.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
21. 21.🏚️ 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 120 cm tall on a 20 cm base and tower C is 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
22. 22.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🏚️ 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 180 cm tall on a 30 cm base and tower C is 80 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
24. 24.🏚️ 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 90 cm tall on a 30 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
25. 25.🏚️ Why is a wide base safer? (a) it is taller (b) it is harder to tip over (c) it is lighter (d) it is colourful
26. 26.🔍 Which is the odd one out? (a) raising heavy tanks high (b) stacking loose bricks (c) having a wide base (d) making brittle joints
27. 27.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) stacking loose bricks (d) adding steel to concrete
28. 28.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) stacking loose bricks (d) adding steel to concrete
29. 29.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) stacking loose bricks (d) fitting rubber base pads
32. 32.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) building tall and narrow (d) using flexible joints
33. 33.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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 60 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
35. 35.🏚️ 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 30 cm base and tower C is 240 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
36. 36.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using a light roof (c) having a wide base (d) adding cross bracing
39. 39.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
40. 40.🏚️ 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 50 cm tall on a 10 cm base and tower C is 210 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B

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