Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 752 · 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 20 cm tall on a 10 cm wide base, tower B is 40 cm tall on a 10 cm base and tower C is 60 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower B (b) tower A (c) tower C
2. 2.🔍 Which is the odd one out? (a) raising heavy tanks high (b) using a light roof (c) adding cross bracing (d) adding steel to concrete
3. 3.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
4. 4.🔍 Which is the odd one out? (a) leaving out steel bars (b) adding steel to concrete (c) using a heavy roof (d) stacking loose bricks
5. 5.Which of these makes a building safer in earthquakes? (a) making brittle joints (b) raising heavy tanks high (c) adding steel to concrete (d) building tall and narrow
6. 6.Which of these makes a building less safe in earthquakes? (a) fitting rubber base pads (b) having a wide base (c) using a light roof (d) building tall and narrow
7. 7.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a shake table (b) a fridge (c) a telescope (d) a microscope
8. 8.Which of these makes a building less safe in earthquakes? (a) keeping a simple shape (b) adding steel to concrete (c) stacking loose bricks (d) fitting rubber base pads
9. 9.🏚️ 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 210 cm tall on a 30 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower C (c) tower A
10. 10.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they look nice (d) they bend, not break
11. 11.True or false: keeping a simple shape makes a building less safe in earthquakes. (a) False (b) True
12. 12.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
13. 13.🏚️ Does using a light roof make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
14. 14.Which of these makes a building less safe in earthquakes? (a) leaving out steel bars (b) using flexible joints (c) adding cross bracing (d) fitting rubber base pads
15. 15.Which of these makes a building safer in earthquakes? (a) raising heavy tanks high (b) leaving out steel bars (c) keeping a simple shape (d) stacking loose bricks
16. 16.🔍 Which is the odd one out? (a) using a heavy roof (b) using flexible joints (c) stacking loose bricks (d) building tall and narrow
17. 17.🏚️ Why is a wide base safer? (a) it is lighter (b) it is colourful (c) it is harder to tip over (d) it is taller
18. 18.🏚️ 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 20 cm tall on a 20 cm base and tower C is 40 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
19. 19.🏚️ Where should heavy water tanks go in a quake zone? (a) hanging outside (b) on the very top (c) on a thin pole (d) low down
20. 20.Which of these makes a building safer in earthquakes? (a) using a heavy roof (b) building tall and narrow (c) using a light roof (d) raising heavy tanks high
21. 21.🏚️ 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 70 cm tall on a 10 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
22. 22.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
23. 23.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
24. 24.🏚️ Three solid model towers are made of the same material. Tower A is 320 cm tall on a 40 cm wide base, tower B is 120 cm tall on a 30 cm base and tower C is 180 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower B (b) tower C (c) tower A
25. 25.Which of these makes a building safer in earthquakes? (a) building tall and narrow (b) having a wide base (c) making brittle joints (d) raising heavy tanks high
26. 26.🏚️ 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 60 cm tall on a 20 cm base and tower C is 20 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
27. 27.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
28. 28.🔍 Which is the odd one out? (a) fitting rubber base pads (b) adding steel to concrete (c) adding cross bracing (d) making brittle joints
29. 29.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
30. 30.True or false: adding steel to concrete makes a building less safe in earthquakes. (a) True (b) False
31. 31.🏚️ Does leaving out steel bars 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.True or false: using a heavy roof makes a building safer in earthquakes. (a) True (b) False
34. 34.🔍 Which is the odd one out? (a) leaving out steel bars (b) keeping a simple shape (c) adding steel to concrete (d) using flexible joints
35. 35.🏚️ 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 20 cm tall on a 10 cm base and tower C is 120 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower A (b) tower B (c) tower C
36. 36.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
37. 37.🏚️ Three solid model towers are made of the same material. Tower A is 40 cm tall on a 10 cm wide base, tower B is 120 cm tall on a 20 cm base and tower C is 240 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
38. 38.🏚️ 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 150 cm tall on a 30 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower B (b) tower A (c) tower C
39. 39.🏚️ 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 80 cm tall on a 20 cm base and tower C is 240 cm tall on a 40 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
40. 40.🔍 Which is the odd one out? (a) raising heavy tanks high (b) building tall and narrow (c) using a light roof (d) leaving out steel bars

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