Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 475 · 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.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
2. 2.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) keeping a simple shape (c) leaving out steel bars (d) making brittle joints
4. 4.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
5. 5.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a light roof (c) fitting rubber base pads (d) making brittle joints
6. 6.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) using flexible joints (c) using a heavy roof (d) leaving out steel bars
7. 7.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ Where should heavy water tanks go in a quake zone? (a) on the very top (b) hanging outside (c) low down (d) on a thin pole
10. 10.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) using flexible joints (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.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
13. 13.🏚️ 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 40 cm tall on a 40 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
14. 14.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a telescope (c) a fridge (d) a microscope
15. 15.🏚️ 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 60 cm tall on a 20 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
16. 16.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
17. 17.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
18. 18.🏚️ 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 160 cm tall on a 40 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
19. 19.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) fitting rubber base pads (d) using a heavy roof
20. 20.🏚️ 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 100 cm tall on a 20 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 C (c) tower A
21. 21.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is taller (d) it is colourful
22. 22.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
23. 23.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
24. 24.🔍 Which is the odd one out? (a) using flexible joints (b) building tall and narrow (c) adding steel to concrete (d) using a light roof
25. 25.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) making brittle joints (c) having a wide base (d) using a heavy roof
26. 26.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🏚️ 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 90 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
28. 28.🔍 Which is the odd one out? (a) building tall and narrow (b) leaving out steel bars (c) raising heavy tanks high (d) using a light roof
29. 29.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
30. 30.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🔍 Which is the odd one out? (a) keeping a simple shape (b) having a wide base (c) using a light roof (d) raising heavy tanks high
32. 32.🏚️ 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 20 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
33. 33.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding cross bracing (c) fitting rubber base pads (d) leaving out steel bars
34. 34.🏚️ 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 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
35. 35.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
36. 36.🏚️ 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
37. 37.🏚️ 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 40 cm tall on a 10 cm base and tower C is 10 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
38. 38.🏚️ 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 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.🔍 Which is the odd one out? (a) using flexible joints (b) keeping a simple shape (c) stacking loose bricks (d) adding cross bracing
40. 40.🔍 Which is the odd one out? (a) making brittle joints (b) leaving out steel bars (c) using a heavy roof (d) adding steel to concrete

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