Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 572 · 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 20 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 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
2. 2.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
3. 3.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a shake table (c) a fridge (d) a telescope
4. 4.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) using a heavy roof (d) making brittle joints
5. 5.True or false: having a wide base makes a building less safe in earthquakes. (a) False (b) True
6. 6.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a light roof (c) building tall and narrow (d) having a wide base
7. 7.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
8. 8.True or false: making brittle joints makes a building less safe in earthquakes. (a) False (b) True
9. 9.🏚️ Why is a wide base safer? (a) it is harder to tip over (b) it is lighter (c) it is colourful (d) it is taller
10. 10.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
11. 11.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) adding steel to concrete (c) using flexible joints (d) stacking loose bricks
12. 12.🏚️ 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 80 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
13. 13.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) on the very top (d) hanging outside
14. 14.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
15. 15.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) False (b) True
16. 16.🔍 Which is the odd one out? (a) adding steel to concrete (b) stacking loose bricks (c) leaving out steel bars (d) making brittle joints
17. 17.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
18. 18.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
19. 19.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using a heavy roof (c) keeping a simple shape (d) using flexible joints
20. 20.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
21. 21.🏚️ 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 140 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
22. 22.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🏚️ 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 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.🏚️ 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 60 cm tall on a 30 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
25. 25.True or false: adding cross bracing makes a building safer in earthquakes. (a) True (b) False
26. 26.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
27. 27.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) adding steel to concrete (c) leaving out steel bars (d) keeping a simple shape
28. 28.🔍 Which is the odd one out? (a) using flexible joints (b) fitting rubber base pads (c) leaving out steel bars (d) keeping a simple shape
29. 29.🏚️ 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 150 cm tall on a 30 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
30. 30.🏚️ 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 50 cm tall on a 10 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
31. 31.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
33. 33.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🔍 Which is the odd one out? (a) raising heavy tanks high (b) adding steel to concrete (c) fitting rubber base pads (d) using a light roof
35. 35.🏚️ 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 120 cm tall on a 20 cm base and tower C is 80 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
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 120 cm tall on a 30 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
37. 37.🔍 Which is the odd one out? (a) stacking loose bricks (b) having a wide base (c) adding cross bracing (d) adding steel to concrete
38. 38.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.🏚️ 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 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 B (c) tower A
40. 40.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) adding cross bracing (c) leaving out steel bars (d) stacking loose bricks

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