STS-CHAPTER 10- THE_NANO_WORLD
  • 1. 1. Which of the following best defines nanotechnology?
A) The manipulation of matter at the atomic and molecular scale 
B) The study of chemical reactions in living organism 
C) The study of very large structures in physics
D) The measurement of astronomical distances 
  • 2. 2. What type of microscope can magnify objects up to a million times?
A) Light microscope
B) Electron microscope
C) AFM
D) STM
  • 3. 3. Which scenario best demonstrates the advantage of nanoscale materials over bulk materials?
A) A metal rod that is painted blue
B) A sunscreen that uses nanoparticles to become transparent
C) A glass window that is simply thicker
D) A plastic bottle that is larger
  • 4. 4. If a nanomaterial is engineered incorrectly, which impact is MOST likely to
    occur?
A) It becomes too large to be seen
B) It stops conducting electricity
C) It may create toxic effects inside cells
D) It turns into a gas
  • 5. 5. Why are nanoparticles effective in drug delivery systems?
A) They cannot dissolve
B) They are too big for receptors
C) They can target specific cells
D) They lose chemical properties
  • 6. 6. A top-down method is MOST appropriate when…
A) A large material is being broken into nanoscale structures
B) Molecules self-assemble naturally
C) Precision at the atomic level is needed
D) A chemical reaction is being reversed
  • 7. 7. Which scenario shows a misuse of nanotechnology?
A) Water filters using nanotubes
B) Nanoparticles used in surveillance without consent
C) Smart fabrics adjusting temperature
D) Nanorobots scanning for diseases
  • 8. 8. Which situation best shows nanotechnology in everyday life?
A) Sunscreen that becomes invisible on the skin
B) A metal spoon
C) A regular toothbrush
D) A larger cellphone
  • 9. 9. Which device uses a mechanical probe to scan surfaces?
A) AFM
B) Light microscope
C) STM
D) Electron microscope
  • 10. 10. Who developed carbon nanotubes in 1991?
A) Sumio Iijima
B) Richard Feynman
C) Norio Taniguchi
D) Kim Eric Drexler
  • 11. 11. Bottom-up fabrication builds materials starting from:
A) Broken fragments
B) Light particles
C) Atoms and molecules
D) Big chunks of materials
  • 12. 12. Which field has benefited the most from nanotechnology?
A) Engineering
B) Medicine and Health Sciences
C) Philosophy
D) Culinary Arts
  • 13. 13. Dip Pen Lithography involves:
A) Printing large images
B) AFM tip writing on a surface
C) Scanning particles
D) Heating metals
  • 14. 14. Chemical Vapor Deposition is used to create:
A) All of the above
B) Large rocks
C) Plastic bags
D) Solar wind
E) High-performance thin films
  • 15. 15. Nanoimprint lithography works by:
A) Stamping nanoscale patterns
B) Blowing air
C) Laser cutting
D) All of the above
E) Melting metals
  • 16. 16. What is the key advantage of working at the nanoscale?
A) Increased material cost
B) Clean the ocean alone
C) New physical and chemical properties
D) Limited precision
  • 17. 17. Silver nanoparticles in fabrics are used to:
A) Add shine
B) Kill odor-causing bacteria
C) Make clothes heavier
D) All of the above
E) Change color
  • 18. 18. Which product uses nanoparticle-based electrodes?
A) Toys
B) Lithium-ion batteries
C) Paper
D) Umbrellas
E) All of the above
  • 19. 19. Nanomaterials in windmill blades make them:
A) Weaker
B) Longer
C) More fragile
D) Lighter and stronger
  • 20. 20. Iron nanoparticles are used to:
A) Make metals shiny
B) Increase plant growth
C) Clean water contaminants
D) Change soil color
  • 21. 21. In the economy, nanotechnology can:
A) Decrease all jobs
B) Create new industries and products
C) Only help rich countries
D) Stop trade
  • 22. 22. Roll-to-roll processing is used to make:
A) Clothing
B) Heavy machines
C) Food
D) All of the above
E) High-volume nanoscale devices
  • 23. 23. Nanotechnology is important because it:
A) Only helps scientists
B) Makes things big
C) Can improve health, environment, and technology
D) Has no use in society
  • 24. 24. Which is a possible risk of nanoparticles in the environment?
A) They make water taste sweet
B) They can enter living organisms easily
C) They block sunlight
D) They turn soil into sand
  • 25. 25. Why are nanomaterials often stronger than normal materials?
A) They contain water
B) Atoms are packed differently
C) They are new
D) They are made of plastic
  • 26. 26. When did Binnig and Rohrer receive the Nobel Prize in Physics for inventing
    the STM?
A) 1986
B) 1991
C) 1974
D) 1959
  • 27. 27. What made the discovery of carbon nanotubes significant?
A) They led to stronger, lighter materials
B) They are the first nanoparticles ever created
C) They can cure diseases instantly
D) They glow when heated
  • 28. 28. What major idea did Feynman introduce in 1959?
A) Nano-silver bandages
B) Atomic-level manipulation is possible
C) Self-cleaning surfaces
D) Quantum dots
  • 29. 30. Which everyday item often contains nanoparticles?
    a.
    b.
    c.
    d.
A) Pillow
B) Rice cooker
C) Wooden spoon
D) Toothpaste
E) All of the above
  • 30. 31. Nanotechnology studies materials that behave differently at very small scales.
A) FALSE
B) TRUE
  • 31. 32. A nanometer is larger than a human hair.
A) FALSE
B) TRUE
  • 32. 33. Richard Feynman talked about shrinking things to perform tasks
A) FALSE
B) TRUE
  • 33. 34. Norio Taniguchi invented the term "nanotechnology."
A) TRUE
B) FALSE
  • 34. 35. Electron microscopes can magnify objects less than light microscopes
A) TRUE
B) FALSE
  • 35. 36. Atomic force microscope uses a mechanical probe.
A) FALSE
B) TRUE
  • 36. 37. Scanning tunneling microscopes cannot view atoms.
A) FALSE
B) TRUE
  • 37. 38. Bottom-up fabrication starts from large materials
A) TRUE
B) FALSE
  • 38. 39. Dip Pen Lithography uses an AFM tip dipped in chemical ink
A) FALSE
B) TRUE
  • 39. 40. Self-assembly happens without external control.
A) TRUE
B) FAlSE
  • 40. 41. Nanomedicine cannot help in drug delivery.
A) TRUE
B) FALSE
  • 41. 42. Nanotechnology can help create flexible, bendable phones.
A) TRUE
B) FALSE
  • 42. 43. Silver nanoparticles in fabrics help remove wrinkles only.
A) FALSE
B) TRUE
  • 43. 44. Nanoparticles can help create stronger sports equipment.
A) TRUE
B) FALSE
  • 44. 45. Nanoparticles always have zero risk to health.
A) FALSE
B) TRUE
  • 45. 46. Nanotechnology can help clean contaminated water
A) FALSE
B) TRUE
  • 46. 47. Nanotechnology has no impact on culture or traditions
A) TRUE
B) FALSE
  • 47. 48. The economy may benefit from new jobs due to nanotechnology
A) FALSE
B) TRUE
  • 48. 49. Nanotechnology may require new political regulations
A) FALSE
B) TRUE
  • 49. 50. Nanotechnology always uses safe and harmless materials
A) FALSE
B) TRUE
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