Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 161 · 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 80 cm tall on a 20 cm wide base, tower B is 20 cm tall on a 10 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
2. 2.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) raising heavy tanks high (d) adding steel to concrete
3. 3.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) leaving out steel bars (d) adding cross bracing
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
5. 5.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a light roof (c) adding cross bracing (d) keeping a simple shape
7. 7.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) having a wide base (d) using a heavy roof
8. 8.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) adding steel to concrete (d) making brittle joints
9. 9.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they stop shaking (d) they look nice
10. 10.🏚️ Why is a wide base safer? (a) it is colourful (b) it is lighter (c) it is taller (d) it is harder to tip over
11. 11.🔍 Which is the odd one out? (a) making brittle joints (b) using flexible joints (c) building tall and narrow (d) stacking loose bricks
12. 12.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
13. 13.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
14. 14.Which of these makes a building less safe in earthquakes? (a) building tall and narrow (b) using a light roof (c) adding steel to concrete (d) fitting rubber base pads
15. 15.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) using flexible joints (c) adding cross bracing (d) stacking loose bricks
16. 16.🏚️ 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 40 cm tall on a 20 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
17. 17.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) stacking loose bricks (d) leaving out steel bars
18. 18.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) adding steel to concrete (c) using a light roof (d) having a wide base
19. 19.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 40 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
21. 21.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) using a heavy roof (d) adding cross bracing
22. 22.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 30 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 C (b) tower B (c) tower A
23. 23.🏚️ 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 120 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
24. 24.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 30 cm tall on a 10 cm base and tower C is 40 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
27. 27.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
29. 29.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
30. 30.🏚️ 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 40 cm tall on a 10 cm base and tower C is 90 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
31. 31.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) having a wide base (c) building tall and narrow (d) stacking loose bricks
32. 32.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
33. 33.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
35. 35.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
37. 37.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
38. 38.🔍 Which is the odd one out? (a) having a wide base (b) fitting rubber base pads (c) keeping a simple shape (d) making brittle joints
39. 39.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) having a wide base (d) making brittle joints
40. 40.True or false: keeping a simple shape makes a building safer in earthquakes. (a) True (b) False

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