Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 836 · 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 safer in earthquakes? (a) making brittle joints (b) leaving out steel bars (c) using a light roof (d) building tall and narrow
2. 2.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
3. 3.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
6. 6.🏚️ 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
7. 7.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
8. 8.True or false: using a heavy roof makes a building less safe in earthquakes. (a) True (b) False
9. 9.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
10. 10.🔍 Which is the odd one out? (a) raising heavy tanks high (b) fitting rubber base pads (c) building tall and narrow (d) using a heavy roof
11. 11.🔍 Which is the odd one out? (a) adding cross bracing (b) building tall and narrow (c) adding steel to concrete (d) fitting rubber base pads
12. 12.🔍 Which is the odd one out? (a) using a light roof (b) having a wide base (c) stacking loose bricks (d) keeping a simple shape
13. 13.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) building tall and narrow (d) using a light roof
14. 14.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
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 60 cm tall on a 30 cm wide base, tower B is 80 cm tall on a 20 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
17. 17.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
19. 19.🏚️ 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 140 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
20. 20.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
22. 22.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) hanging outside (c) on the very top (d) low down
23. 23.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
24. 24.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using a light roof (c) fitting rubber base pads (d) building tall and narrow
25. 25.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) building tall and narrow (c) leaving out steel bars (d) using flexible joints
26. 26.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) adding steel to concrete (d) raising heavy tanks high
27. 27.Which of these makes a building safer in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) stacking loose bricks (d) building tall and narrow
28. 28.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
29. 29.🔍 Which is the odd one out? (a) stacking loose bricks (b) leaving out steel bars (c) using a heavy roof (d) adding cross bracing
30. 30.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
31. 31.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
32. 32.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
34. 34.🏚️ 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 30 cm tall on a 30 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 C (c) tower A
35. 35.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) adding steel to concrete (c) using flexible joints (d) keeping a simple shape
36. 36.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🔍 Which is the odd one out? (a) keeping a simple shape (b) stacking loose bricks (c) using a heavy roof (d) leaving out steel bars
38. 38.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) using a heavy roof (d) adding steel to concrete
39. 39.🏚️ 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 60 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
40. 40.🏚️ 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 60 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B

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