Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 105 · 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: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
2. 2.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) using flexible joints (d) making brittle joints
3. 3.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
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.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
6. 6.🏚️ 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 200 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 B (b) tower A (c) tower C
7. 7.Which of these makes a building less safe in earthquakes? (a) using a heavy roof (b) fitting rubber base pads (c) using flexible joints (d) having a wide base
8. 8.True or false: using a light roof makes a building safer in earthquakes. (a) False (b) True
9. 9.🏚️ 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 70 cm tall on a 10 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
10. 10.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) having a wide base (c) raising heavy tanks high (d) leaving out steel bars
11. 11.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
12. 12.🔍 Which is the odd one out? (a) using a heavy roof (b) using flexible joints (c) raising heavy tanks high (d) building tall and narrow
13. 13.🏚️ 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 60 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 C (c) tower A
14. 14.🔍 Which is the odd one out? (a) adding cross bracing (b) keeping a simple shape (c) using flexible joints (d) using a heavy roof
15. 15.🔍 Which is the odd one out? (a) using a light roof (b) using flexible joints (c) keeping a simple shape (d) making brittle joints
16. 16.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) adding steel to concrete (c) having a wide base (d) building tall and narrow
17. 17.🏚️ Why is a wide base safer? (a) it is lighter (b) it is harder to tip over (c) it is taller (d) it is colourful
18. 18.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
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 50 cm tall on a 10 cm base and tower C is 120 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
20. 20.True or false: using a light roof makes a building less safe in earthquakes. (a) False (b) True
21. 21.🏚️ Does adding cross bracing 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) raising heavy tanks high (b) stacking loose bricks (c) making brittle joints (d) using a light roof
23. 23.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) building tall and narrow (c) leaving out steel bars (d) using a light roof
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 40 cm wide base, tower B is 20 cm tall on a 10 cm base and tower C is 20 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
25. 25.🔍 Which is the odd one out? (a) keeping a simple shape (b) stacking loose bricks (c) building tall and narrow (d) using a heavy roof
26. 26.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) False (b) True
27. 27.🏚️ 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 90 cm tall on a 30 cm base and tower C is 10 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
28. 28.🏚️ 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 120 cm tall on a 40 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
29. 29.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) using a light roof (d) leaving out steel bars
30. 30.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
31. 31.🏚️ 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 240 cm tall on a 40 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 A (c) tower C
32. 32.🏚️ 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 120 cm tall on a 30 cm base and tower C is 80 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
33. 33.🏚️ Three solid model towers are made of the same material. Tower A is 120 cm tall on a 20 cm wide base, tower B is 90 cm tall on a 30 cm base and tower C is 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
34. 34.🏚️ 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 90 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
35. 35.True or false: having a wide base makes a building safer in earthquakes. (a) True (b) False
36. 36.🏚️ Does raising heavy tanks high make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they bend, not break (c) they look nice (d) they are cheap
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 240 cm tall on a 40 cm wide base, tower B is 200 cm tall on a 40 cm base and tower C is 120 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
39. 39.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding steel to concrete (c) using flexible joints (d) adding cross bracing
40. 40.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe

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