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