Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 728 · 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 120 cm tall on a 40 cm wide base, tower B is 60 cm tall on a 30 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
2. 2.🏚️ 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 60 cm tall on a 20 cm base and tower C is 30 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
3. 3.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 180 cm tall on a 30 cm base and tower C is 120 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
4. 4.🏚️ Three solid model towers are made of the same material. Tower A is 150 cm tall on a 30 cm wide base, tower B is 280 cm tall on a 40 cm base and tower C is 60 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
5. 5.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) fitting rubber base pads (d) using a heavy roof
6. 6.🔍 Which is the odd one out? (a) adding steel to concrete (b) making brittle joints (c) keeping a simple shape (d) having a wide base
7. 7.🔍 Which is the odd one out? (a) having a wide base (b) adding cross bracing (c) using a light roof (d) stacking loose bricks
8. 8.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) keeping a simple shape (c) using a heavy roof (d) fitting rubber base pads
9. 9.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) building tall and narrow (c) using a light roof (d) adding steel to concrete
10. 10.🔍 Which is the odd one out? (a) leaving out steel bars (b) making brittle joints (c) raising heavy tanks high (d) adding steel to concrete
11. 11.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
13. 13.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.🔍 Which is the odd one out? (a) using a heavy roof (b) stacking loose bricks (c) building tall and narrow (d) using a light roof
15. 15.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they stop shaking (c) they bend, not break (d) they are cheap
16. 16.🏚️ 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 180 cm tall on a 30 cm base and tower C is 100 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower A (b) tower B (c) tower C
17. 17.🔍 Which is the odd one out? (a) having a wide base (b) building tall and narrow (c) using flexible joints (d) using a light roof
18. 18.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) on the very top (c) low down (d) hanging outside
19. 19.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
20. 20.🔍 Which is the odd one out? (a) building tall and narrow (b) adding cross bracing (c) using a heavy roof (d) raising heavy tanks high
21. 21.🏚️ 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 90 cm tall on a 30 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
22. 22.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) making brittle joints (c) keeping a simple shape (d) using a heavy roof
23. 23.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a telescope (b) a fridge (c) a microscope (d) a shake table
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 40 cm wide base, tower B is 80 cm tall on a 40 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
25. 25.True or false: fitting rubber base pads makes a building safer in earthquakes. (a) True (b) False
26. 26.🔍 Which is the odd one out? (a) making brittle joints (b) stacking loose bricks (c) raising heavy tanks high (d) using flexible joints
27. 27.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) True (b) False
28. 28.🏚️ 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 120 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 A (b) tower C (c) tower B
29. 29.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) True (b) False
30. 30.🏚️ Three solid model towers are made of the same material. Tower A is 60 cm tall on a 30 cm wide base, tower B is 160 cm tall on a 40 cm base and tower C is 50 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
31. 31.True or false: using flexible joints makes a building less safe in earthquakes. (a) True (b) False
32. 32.🏚️ Three solid model towers are made of the same material. Tower A is 180 cm tall on a 30 cm wide base, tower B is 150 cm tall on a 30 cm base and tower C is 60 cm tall on a 20 cm base. Which is the easiest 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 200 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 40 cm base and tower C is 30 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
34. 34.Which of these makes a building safer in earthquakes? (a) using flexible joints (b) using a heavy roof (c) stacking loose bricks (d) building tall and narrow
35. 35.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
36. 36.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
37. 37.True or false: raising heavy tanks high makes a building less safe in earthquakes. (a) False (b) True
38. 38.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
39. 39.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) leaving out steel bars (d) adding steel to concrete
40. 40.True or false: making brittle joints makes a building safer in earthquakes. (a) False (b) True

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