Engineering Worksheet: Earthquake-Safe Buildings

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

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