An Atomic Force Microscope Consists of a Cantilever with a Very

question 63

Multiple Choice

An Atomic Force Microscope consists of a cantilever with a very fine tip on one end.The lever is driven by a piezoelectric motor allowing the tip to scan a surface on an atomic scale.As it scans the surface what is the main frictional force between the tip and the surface?

• A)static
• B)kinetic
• C)rolling
• D)all three
• E)there is no frictional force

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