Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 842 · 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: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
2. 2.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
3. 3.🏚️ 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 50 cm tall on a 10 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
4. 4.🏚️ 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 140 cm tall on a 20 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
5. 5.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
6. 6.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
7. 7.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) using a heavy roof (d) adding cross bracing
8. 8.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
9. 9.🏚️ Does fitting rubber base pads 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) stacking loose bricks (c) using a light roof (d) building tall and narrow
11. 11.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) making brittle joints (c) keeping a simple shape (d) stacking loose bricks
12. 12.🏚️ 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 150 cm tall on a 30 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
13. 13.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) stacking loose bricks (d) using a heavy roof
14. 14.🔍 Which is the odd one out? (a) using a light roof (b) fitting rubber base pads (c) making brittle joints (d) keeping a simple shape
15. 15.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
16. 16.🔍 Which is the odd one out? (a) adding steel to concrete (b) using flexible joints (c) adding cross bracing (d) using a heavy roof
17. 17.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) fitting rubber base pads (c) raising heavy tanks high (d) building tall and narrow
18. 18.True or false: using a light roof makes a building safer in earthquakes. (a) True (b) False
19. 19.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
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.🏚️ Three solid model towers are made of the same material. Tower A is 80 cm tall on a 10 cm wide base, tower B is 240 cm tall on a 40 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
22. 22.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) using flexible joints (c) keeping a simple shape (d) making brittle joints
23. 23.🏚️ 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 60 cm tall on a 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
24. 24.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
25. 25.🏚️ Why is a wide base safer? (a) it is colourful (b) it is harder to tip over (c) it is taller (d) it is lighter
26. 26.🔍 Which is the odd one out? (a) making brittle joints (b) using a heavy roof (c) fitting rubber base pads (d) leaving out steel bars
27. 27.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) fitting rubber base pads (c) keeping a simple shape (d) raising heavy tanks high
28. 28.True or false: having a wide base makes a building less safe in earthquakes. (a) True (b) False
29. 29.🔍 Which is the odd one out? (a) using flexible joints (b) leaving out steel bars (c) making brittle joints (d) building tall and narrow
30. 30.🏚️ Does leaving out steel bars 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) adding steel to concrete (b) leaving out steel bars (c) using a light roof (d) having a wide base
32. 32.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 50 cm tall on a 10 cm wide base, tower B is 240 cm tall on a 40 cm base and tower C is 160 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
34. 34.True or false: using flexible joints makes a building less safe in earthquakes. (a) False (b) True
35. 35.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) making brittle joints (c) raising heavy tanks high (d) adding steel to concrete
36. 36.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🔍 Which is the odd one out? (a) using a heavy roof (b) leaving out steel bars (c) stacking loose bricks (d) having a wide base
38. 38.🏚️ 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 30 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.🏚️ 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 80 cm tall on a 20 cm base and tower C is 100 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
40. 40.🔍 Which is the odd one out? (a) keeping a simple shape (b) using a light roof (c) adding cross bracing (d) stacking loose bricks

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