Heisenberg Uncertainty Principle Video Lessons

Concept:

# Problem: By looking at the uncertainty of the bacterium's position, did the student have a valid point?A) The student has a point. The uncertainty of the bacterium's position is much larger than the bacterium itself.B) The bacterium's size and the uncertainty of its position are about the same magnitude. The student should have little trouble finding the bacterium in the microscopeC) The student is wrong. The uncertainty of the bacterium's position is tiny compared to the size of the bacterium itself.A student is examining a bacterium under the microscope. The E. coli bacterial cell has a mass of m = 1.70 fg (where a femtogram, fg, is 10−15 g) and is swimming at a velocity of v = 8.00 μm/s, with an uncertainty in the velocity of 8.00%. E. coli bacterial cells are around 1 μm (10−6 m) in length. The student is supposed to observe the bacterium and make a drawing. However, the student, having just learned about the Heisenberg uncertainty principle in physics class, complains that she cannot make the drawing. She claims that the uncertainty of the bacterium's position is greater than the microscope's viewing field, and the bacterium is thus impossible to locate.

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###### Problem Details

By looking at the uncertainty of the bacterium's position, did the student have a valid point?
A) The student has a point. The uncertainty of the bacterium's position is much larger than the bacterium itself.
B) The bacterium's size and the uncertainty of its position are about the same magnitude. The student should have little trouble finding the bacterium in the microscope
C) The student is wrong. The uncertainty of the bacterium's position is tiny compared to the size of the bacterium itself.

A student is examining a bacterium under the microscope. The E. coli bacterial cell has a mass of m = 1.70 fg (where a femtogram, fg, is 10−15 g) and is swimming at a velocity of v = 8.00 μm/s, with an uncertainty in the velocity of 8.00%. E. coli bacterial cells are around 1 μm (10−6 m) in length. The student is supposed to observe the bacterium and make a drawing. However, the student, having just learned about the Heisenberg uncertainty principle in physics class, complains that she cannot make the drawing. She claims that the uncertainty of the bacterium's position is greater than the microscope's viewing field, and the bacterium is thus impossible to locate.