Engineering Worksheet: Earthquake-Safe Buildings

Engineering lesson 21: Earthquake-safe buildings · Set 697 · 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.🏚️ What do engineers use to test models of buildings for earthquakes? (a) a microscope (b) a fridge (c) a telescope (d) a shake table
2. 2.🏚️ 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 200 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 C (b) tower A (c) tower B
3. 3.🏚️ Does using flexible joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
4. 4.🏚️ 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 90 cm tall on a 30 cm base and tower C is 50 cm tall on a 10 cm base. Which is the easiest to tip over? (a) tower C (b) tower A (c) tower B
5. 5.🏚️ Does making brittle joints make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
6. 6.Which of these makes a building less safe in earthquakes? (a) adding cross bracing (b) using flexible joints (c) adding steel to concrete (d) leaving out steel bars
7. 7.🏚️ Does adding steel to concrete make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
8. 8.🔍 Which is the odd one out? (a) having a wide base (b) adding steel to concrete (c) adding cross bracing (d) building tall and narrow
9. 9.🏚️ Does stacking loose bricks make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
10. 10.True or false: raising heavy tanks high makes a building safer in earthquakes. (a) False (b) True
11. 11.🏚️ Does adding cross bracing make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
12. 12.🏚️ Why is a wide base safer? (a) it is colourful (b) it is taller (c) it is lighter (d) it is harder to tip over
13. 13.True or false: keeping a simple shape makes a building safer in earthquakes. (a) False (b) True
14. 14.True or false: having a wide base makes a building safer in earthquakes. (a) False (b) True
15. 15.Which of these makes a building safer in earthquakes? (a) stacking loose bricks (b) raising heavy tanks high (c) using a light roof (d) leaving out steel bars
16. 16.🏚️ Does building tall and narrow make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
17. 17.🏚️ 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 40 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
18. 18.True or false: keeping a simple shape 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 70 cm tall on a 10 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 B (b) tower C (c) tower A
20. 20.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) having a wide base (c) adding cross bracing (d) making brittle joints
21. 21.🔍 Which is the odd one out? (a) using flexible joints (b) using a light roof (c) adding steel to concrete (d) leaving out steel bars
22. 22.🏚️ 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 50 cm tall on a 10 cm base and tower C is 60 cm tall on a 30 cm base. Which is the easiest to tip over? (a) tower A (b) tower C (c) tower B
23. 23.🔍 Which is the odd one out? (a) adding steel to concrete (b) adding cross bracing (c) keeping a simple shape (d) stacking loose bricks
24. 24.Which of these makes a building less safe in earthquakes? (a) using flexible joints (b) stacking loose bricks (c) keeping a simple shape (d) fitting rubber base pads
25. 25.True or false: stacking loose bricks makes a building safer in earthquakes. (a) True (b) False
26. 26.True or false: leaving out steel bars makes a building safer in earthquakes. (a) False (b) True
27. 27.🔍 Which is the odd one out? (a) stacking loose bricks (b) using a heavy roof (c) using a light roof (d) building tall and narrow
28. 28.🔍 Which is the odd one out? (a) adding cross bracing (b) using a heavy roof (c) fitting rubber base pads (d) keeping a simple shape
29. 29.🔍 Which is the odd one out? (a) using a heavy roof (b) fitting rubber base pads (c) leaving out steel bars (d) stacking loose bricks
30. 30.True or false: fitting rubber base pads makes a building less safe in earthquakes. (a) False (b) True
31. 31.🏚️ Does using a heavy roof make a building safer or less safe in an earthquake? (a) less safe (b) safer in earthquakes
32. 32.🏚️ 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 160 cm tall on a 40 cm base and tower C is 120 cm tall on a 20 cm base. Which is the easiest to tip over? (a) tower C (b) tower B (c) tower A
33. 33.🏚️ Does leaving out steel bars make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
34. 34.🏚️ Why are flexible joints good in an earthquake? (a) they stop shaking (b) they are cheap (c) they bend, not break (d) they look nice
35. 35.True or false: building tall and narrow makes a building less safe in earthquakes. (a) True (b) False
36. 36.Which of these makes a building safer in earthquakes? (a) keeping a simple shape (b) using a heavy roof (c) leaving out steel bars (d) making brittle joints
37. 37.🏚️ Does having a wide base make a building safer or less safe in an earthquake? (a) safer in earthquakes (b) less safe
38. 38.🏚️ Three solid model towers are made of the same material. Tower A is 90 cm tall on a 30 cm wide base, tower B is 140 cm tall on a 20 cm base and tower C is 150 cm tall on a 30 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A
39. 39.🏚️ Three solid model towers are made of the same material. Tower A is 10 cm tall on a 10 cm wide base, tower B is 120 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 B (c) tower A
40. 40.🏚️ 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 100 cm tall on a 20 cm base and tower C is 40 cm tall on a 20 cm base. Which is the hardest to tip over? (a) tower C (b) tower B (c) tower A

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