Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 780 · 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.🔍 Which is the odd one out? (a) making brittle joints (b) fitting rubber base pads (c) adding steel to concrete (d) having a wide base
2. 2.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a telescope (c) a fridge (d) a shake table
3. 3.True or false: leaving out steel bars makes a building safer in earthquakes. (a) True (b) False
4. 4.Which of these makes a building safer in earthquakes? (a) fitting rubber base pads (b) raising heavy tanks high (c) leaving out steel bars (d) building tall and narrow
5. 5.🔍 Which is the odd one out? (a) adding steel to concrete (b) using a heavy roof (c) raising heavy tanks high (d) making brittle joints
6. 6.🏚️ 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 160 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower A (b) tower C (c) tower B
7. 7.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
8. 8.True or false: making brittle joints makes a building less safe in earthquakes. (a) True (b) False
9. 9.Which of these makes a building less safe in earthquakes? (a) adding steel to concrete (b) building tall and narrow (c) having a wide base (d) fitting rubber base pads
10. 10.True or false: adding cross bracing makes a building less safe in earthquakes. (a) True (b) False
11. 11.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) adding cross bracing (c) raising heavy tanks high (d) building tall and narrow
12. 12.🏚️ Where should heavy water tanks go in a quake zone? (a) on a thin pole (b) low down (c) hanging outside (d) on the very top
13. 13.🏚️ Why are flexible joints good in an earthquake? (a) they look nice (b) they are cheap (c) they stop shaking (d) they bend, not break
14. 14.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) leaving out steel bars (c) raising heavy tanks high (d) using flexible joints
15. 15.Which of these makes a building safer in earthquakes? (a) leaving out steel bars (b) raising heavy tanks high (c) stacking loose bricks (d) adding steel to concrete
16. 16.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
17. 17.🔍 Which is the odd one out? (a) having a wide base (b) using a light roof (c) adding cross bracing (d) building tall and narrow
18. 18.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
19. 19.🏚️ 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 240 cm tall on a 40 cm base and tower C is 200 cm tall on a 40 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
20. 20.🏚️ Three solid model towers are made of the same material. Tower A is 70 cm tall on a 10 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 easiest to tip over? (a) tower A (b) tower C (c) tower B
21. 21.True or false: stacking loose bricks makes a building less safe in earthquakes. (a) False (b) True
22. 22.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) raising heavy tanks high (c) adding steel to concrete (d) using a light roof
23. 23.Which of these makes a building less safe in earthquakes? (a) having a wide base (b) using flexible joints (c) keeping a simple shape (d) stacking loose bricks
24. 24.🏚️ 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 100 cm tall on a 20 cm base and tower C is 180 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower A (c) tower B
25. 25.True or false: stacking loose bricks makes a building safer in earthquakes. (a) False (b) True
26. 26.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
27. 27.🏚️ 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 150 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 A (c) tower B
28. 28.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
29. 29.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
30. 30.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
31. 31.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ Does fitting rubber base pads make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
33. 33.🏚️ Does keeping a simple shape make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
34. 34.True or false: using flexible joints makes a building safer in earthquakes. (a) True (b) False
35. 35.🏚️ 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 60 cm tall on a 20 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
36. 36.🔍 Which is the odd one out? (a) using a heavy roof (b) adding cross bracing (c) using flexible joints (d) having a wide base
37. 37.🔍 Which is the odd one out? (a) making brittle joints (b) having a wide base (c) stacking loose bricks (d) building tall and narrow
38. 38.🏚️ 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 160 cm tall on a 40 cm base and tower C is 20 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
39. 39.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) leaving out steel bars (d) stacking loose bricks
40. 40.🏚️ 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 90 cm tall on a 30 cm base and tower C is 140 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B

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