15 Questions
How does decreasing the radius by a factor of two affect the surface area?
Doubles
What happens to the surface area when a 1cm particle is crushed into nano particles?
Increases thousands of times
What is the surface area of 1 nm particles in square meters?
$10^{10}$ m^2
How does the reactivity of bulk aluminum compare to nano aluminum?
Different
What property of gold changes at the nanoscale?
Color
Explain how decreasing the radius by a factor of two affects the surface area at the nanoscale.
It doubles the surface area for a fixed total volume.
What happens to the surface area when a 1cm particle is crushed into nano particles?
The surface area increases thousands of times.
How does the reactivity of bulk aluminum compare to nano aluminum at the nanoscale?
Nano aluminum is more reactive than bulk aluminum.
What property of gold changes at the nanoscale?
Color of gold changes at the nanoscale.
How does the size of gold particles affect their color?
The size of gold particles affects their color due to quantum effects.
Explain how smallness leads to new properties in materials like aluminum and gold.
Smallness at the nanoscale changes the reactivity, melting point, strength, conductivity, and color of materials like aluminum and gold.
How does particle shape influence the color of materials at the nanoscale?
Particle shape affects the color of materials at the nanoscale.
What is the significance of controlling the size and shape of particles in the quantum world?
Controlling the size and shape of particles is crucial for understanding atoms, molecules, and photons at the quantum level.
Explain the relationship between particle size and surface area at the nanoscale.
Decreasing particle size increases surface area at the nanoscale.
What happens to the surface area of particles as they decrease in size from 1 cm to 1 nm?
The surface area increases significantly as particles decrease in size from 1 cm to 1 nm.
Explore the importance of 'special' microscopes for viewing nanoscale objects that are beyond the diffraction limit of regular optical microscopes. Learn about different types of specialized microscopes and how they interact with light in various ways.
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