Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 588 · 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 100 cm tall on a 20 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
2. 2.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
3. 3.True or false: using a heavy roof makes a building less safe in earthquakes. (a) False (b) True
4. 4.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
5. 5.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a shake table (d) a fridge
6. 6.🏚️ Does leaving out steel bars 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) building tall and narrow (b) keeping a simple shape (c) making brittle joints (d) leaving out steel bars
8. 8.🏚️ Three solid model towers are made of the same material. Tower A is 140 cm tall on a 20 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 80 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
9. 9.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) stacking loose bricks (c) having a wide base (d) building tall and narrow
10. 10.🏚️ Does having a wide base 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 safer in earthquakes? (a) adding steel to concrete (b) leaving out steel bars (c) raising heavy tanks high (d) using a heavy roof
12. 12.Which of these makes a building less safe in earthquakes? (a) raising heavy tanks high (b) keeping a simple shape (c) having a wide base (d) using flexible joints
13. 13.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
14. 14.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
15. 15.True or false: adding cross bracing makes a building safer in earthquakes. (a) False (b) True
16. 16.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) making brittle joints (c) adding cross bracing (d) fitting rubber base pads
17. 17.🏚️ Three solid model towers are made of the same material. Tower A is 280 cm tall on a 40 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 hardest to tip over? (a) tower B (b) tower A (c) tower C
18. 18.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
19. 19.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) building tall and narrow (c) using a heavy roof (d) making brittle joints
20. 20.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
21. 21.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
22. 22.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) raising heavy tanks high (d) using a light roof
23. 23.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) True (b) False
24. 24.True or false: leaving out steel bars makes a building less safe in earthquakes. (a) False (b) True
25. 25.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is colourful (d) it is taller
26. 26.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 40 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they bend, not break (c) they are cheap (d) they stop shaking
28. 28.🏚️ 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 10 cm tall on a 10 cm base and tower C is 80 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
29. 29.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) adding steel to concrete (d) using a heavy roof
31. 31.🔍 Which is the odd one out? (a) adding cross bracing (b) stacking loose bricks (c) using flexible joints (d) having a wide base
32. 32.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) leaving out steel bars (c) raising heavy tanks high (d) fitting rubber base pads
33. 33.True or false: having a wide base 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 60 cm tall on a 20 cm wide base, tower B is 40 cm tall on a 10 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 C (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.True or false: using a light roof makes a building less safe in earthquakes. (a) True (b) False
37. 37.🔍 Which is the odd one out? (a) raising heavy tanks high (b) making brittle joints (c) using flexible joints (d) using a heavy roof
38. 38.🏚️ 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 80 cm tall on a 40 cm base and tower C is 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
39. 39.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
40. 40.🔍 Which is the odd one out? (a) fitting rubber base pads (b) using a heavy roof (c) adding steel to concrete (d) keeping a simple shape

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