Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 114 · 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 150 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the easiest 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 40 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
3. 3.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
5. 5.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) using a light roof (c) making brittle joints (d) fitting rubber base pads
6. 6.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
7. 7.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) leaving out steel bars (c) fitting rubber base pads (d) adding steel to concrete
8. 8.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) True (b) False
9. 9.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) having a wide base (d) adding cross bracing
10. 10.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
11. 11.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a shake table (d) a telescope
12. 12.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding steel to concrete (c) building tall and narrow (d) using flexible joints
13. 13.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
14. 14.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) leaving out steel bars (d) making brittle joints
15. 15.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) having a wide base (c) leaving out steel bars (d) making brittle joints
16. 16.🏚️ Why is a wide base safer? (a) it is taller (b) it is lighter (c) it is colourful (d) it is harder to tip over
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
18. 18.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) using flexible joints (d) using a light roof
19. 19.🔍 Which is the odd one out? (a) using a light roof (b) making brittle joints (c) raising heavy tanks high (d) leaving out steel bars
20. 20.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) using a light roof (c) using a heavy roof (d) raising heavy tanks high
21. 21.🏚️ Three solid model towers are made of the same material. Tower A is 160 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
22. 22.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
23. 23.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) stacking loose bricks (c) raising heavy tanks high (d) using flexible joints
25. 25.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
26. 26.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) True (b) False
27. 27.Which of these makes a building less safe in earthquakes? (a) using a light roof (b) having a wide base (c) adding steel to concrete (d) raising heavy tanks high
28. 28.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
29. 29.🏚️ Why are flexible joints good in an earthquake? (a) they are cheap (b) they stop shaking (c) they look nice (d) they bend, not break
30. 30.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
31. 31.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
33. 33.🏚️ 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
34. 34.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
35. 35.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) adding steel to concrete (d) stacking loose bricks
36. 36.True or false: adding steel to concrete makes a building safer in earthquakes. (a) False (b) True
37. 37.🏚️ 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 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
38. 38.True or false: making brittle joints makes a building safer in earthquakes. (a) True (b) False
39. 39.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
40. 40.🏚️ 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 120 cm tall on a 40 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

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