STS-CHAPTER 10- THE_NANO_WORLD
  • 1. 1. Which of the following best defines nanotechnology?
A) The measurement of astronomical distances 
B) The manipulation of matter at the atomic and molecular scale 
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) AFM
B) STM
C) Electron microscope
D) Light microscope
  • 3. 3. Which scenario best demonstrates the advantage of nanoscale materials over bulk materials?
A) A metal rod that is painted blue
B) A glass window that is simply thicker
C) A plastic bottle that is larger
D) A sunscreen that uses nanoparticles to become transparent
  • 4. 4. If a nanomaterial is engineered incorrectly, which impact is MOST likely to
    occur?
A) It stops conducting electricity
B) It becomes too large to be seen
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 can target specific cells
B) They lose chemical properties
C) They are too big for receptors
D) They cannot dissolve
  • 6. 6. A top-down method is MOST appropriate when…
A) A chemical reaction is being reversed
B) Molecules self-assemble naturally
C) Precision at the atomic level is needed
D) A large material is being broken into nanoscale structures
  • 7. 7. Which scenario shows a misuse of nanotechnology?
A) Nanorobots scanning for diseases
B) Nanoparticles used in surveillance without consent
C) Smart fabrics adjusting temperature
D) Water filters using nanotubes
  • 8. 8. Which situation best shows nanotechnology in everyday life?
A) A metal spoon
B) Sunscreen that becomes invisible on the skin
C) A regular toothbrush
D) A larger cellphone
  • 9. 9. Which device uses a mechanical probe to scan surfaces?
A) Electron microscope
B) Light microscope
C) STM
D) AFM
  • 10. 10. Who developed carbon nanotubes in 1991?
A) Norio Taniguchi
B) Richard Feynman
C) Sumio Iijima
D) Kim Eric Drexler
  • 11. 11. Bottom-up fabrication builds materials starting from:
A) Atoms and molecules
B) Light particles
C) Broken fragments
D) Big chunks of materials
  • 12. 12. Which field has benefited the most from nanotechnology?
A) Engineering
B) Medicine and Health Sciences
C) Culinary Arts
D) Philosophy
  • 13. 13. Dip Pen Lithography involves:
A) Scanning particles
B) AFM tip writing on a surface
C) Printing large images
D) Heating metals
  • 14. 14. Chemical Vapor Deposition is used to create:
A) Solar wind
B) High-performance thin films
C) All of the above
D) Plastic bags
E) Large rocks
  • 15. 15. Nanoimprint lithography works by:
A) All of the above
B) Laser cutting
C) Melting metals
D) Blowing air
E) Stamping nanoscale patterns
  • 16. 16. What is the key advantage of working at the nanoscale?
A) Increased material cost
B) Limited precision
C) New physical and chemical properties
D) Clean the ocean alone
  • 17. 17. Silver nanoparticles in fabrics are used to:
A) Change color
B) All of the above
C) Add shine
D) Make clothes heavier
E) Kill odor-causing bacteria
  • 18. 18. Which product uses nanoparticle-based electrodes?
A) Umbrellas
B) All of the above
C) Toys
D) Lithium-ion batteries
E) Paper
  • 19. 19. Nanomaterials in windmill blades make them:
A) Lighter and stronger
B) Weaker
C) Longer
D) More fragile
  • 20. 20. Iron nanoparticles are used to:
A) Change soil color
B) Make metals shiny
C) Clean water contaminants
D) Increase plant growth
  • 21. 21. In the economy, nanotechnology can:
A) Create new industries and products
B) Only help rich countries
C) Decrease all jobs
D) Stop trade
  • 22. 22. Roll-to-roll processing is used to make:
A) Heavy machines
B) Food
C) All of the above
D) High-volume nanoscale devices
E) Clothing
  • 23. 23. Nanotechnology is important because it:
A) Can improve health, environment, and technology
B) Only helps scientists
C) Has no use in society
D) Makes things big
  • 24. 24. Which is a possible risk of nanoparticles in the environment?
A) They block sunlight
B) They turn soil into sand
C) They can enter living organisms easily
D) They make water taste sweet
  • 25. 25. Why are nanomaterials often stronger than normal materials?
A) They are new
B) They are made of plastic
C) Atoms are packed differently
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) 1991
D) 1986
  • 27. 27. What made the discovery of carbon nanotubes significant?
A) They can cure diseases instantly
B) They glow when heated
C) They led to stronger, lighter materials
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) All of the above
C) Pillow
D) Rice cooker
E) Wooden spoon
  • 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) TRUE
B) FALSE
  • 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) FALSE
B) TRUE
  • 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) TRUE
B) FALSE
  • 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) FALSE
B) TRUE
  • 44. 45. Nanoparticles always have zero risk to health.
A) FALSE
B) TRUE
  • 45. 46. Nanotechnology can help clean contaminated water
A) TRUE
B) FALSE
  • 46. 47. Nanotechnology has no impact on culture or traditions
A) FALSE
B) TRUE
  • 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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