Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 426 · 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.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) building tall and narrow (c) using flexible joints (d) fitting rubber base pads
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 60 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
3. 3.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) making brittle joints (c) raising heavy tanks high (d) using flexible joints
4. 4.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
5. 5.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
7. 7.🔍 Which is the odd one out? (a) using flexible joints (b) having a wide base (c) raising heavy tanks high (d) keeping a simple shape
8. 8.🏚️ Does having a wide base 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 70 cm tall on a 10 cm wide base, tower B is 50 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 C (b) tower A (c) tower B
10. 10.🏚️ Why are flexible joints good in an earthquake? (a) they bend, not break (b) they are cheap (c) they look nice (d) they stop shaking
11. 11.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) fitting rubber base pads (d) building tall and narrow
12. 12.🏚️ 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 20 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
13. 13.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a fridge (b) a shake table (c) a microscope (d) a telescope
14. 14.🔍 Which is the odd one out? (a) fitting rubber base pads (b) leaving out steel bars (c) having a wide base (d) keeping a simple shape
15. 15.🔍 Which is the odd one out? (a) using flexible joints (b) stacking loose bricks (c) making brittle joints (d) using a heavy roof
16. 16.🔍 Which is the odd one out? (a) using a heavy roof (b) using a light roof (c) making brittle joints (d) building tall and narrow
17. 17.🏚️ 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 10 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 C (b) tower A (c) tower B
18. 18.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) building tall and narrow (d) having a wide base
19. 19.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) True (b) False
20. 20.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) low down (d) on the very top
21. 21.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
22. 22.🏚️ 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 20 cm tall on a 10 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
23. 23.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) adding cross bracing (c) making brittle joints (d) stacking loose bricks
24. 24.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
25. 25.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
26. 26.True or false: using a heavy roof makes a building safer in earthquakes. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) building tall and narrow (b) using a heavy roof (c) fitting rubber base pads (d) making brittle joints
28. 28.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is harder to tip over (d) it is lighter
29. 29.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) making brittle joints (d) having a wide base
30. 30.🏚️ Does adding steel to concrete 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 less safe in earthquakes? (a) having a wide base (b) leaving out steel bars (c) using flexible joints (d) using a light roof
32. 32.True or false: building tall and narrow makes a building safer in earthquakes. (a) True (b) False
33. 33.🔍 Which is the odd one out? (a) adding cross bracing (b) adding steel to concrete (c) using flexible joints (d) stacking loose bricks
34. 34.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
35. 35.🏚️ 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 150 cm tall on a 30 cm base and tower C is 40 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
36. 36.🔍 Which is the odd one out? (a) stacking loose bricks (b) building tall and narrow (c) using a heavy roof (d) adding steel to concrete
37. 37.🏚️ 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 50 cm tall on a 10 cm base and tower C is 40 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.🏚️ 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 20 cm tall on a 10 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 C (c) tower B
39. 39.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) adding steel to concrete (d) building tall and narrow
40. 40.🔍 Which is the odd one out? (a) having a wide base (b) leaving out steel bars (c) stacking loose bricks (d) making brittle joints

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