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Heisenberg Uncertainty Principle (College)

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Heisenberg Uncertainty Principle

1. 
Which of the following equations correctly represents the Heisenberg Uncertainty Principle?
  1. [math]∆x•∆(mv)≤{h}/{4π}[/math]
  2. [math]∆x•∆(mv)≥{h}/{4π}[/math]
  3. [math]∆x•∆(mv)≤{h}/{2π^2}[/math]
  4. [math]∆x•∆(mv)≥{h}/{2π^2}[/math]
2. 
Which of the following correctly describes the Heisenberg Uncertainty Principle qualitatively?
  1. We cannot determine the exact path of an electron
  2. We cannot determine the exact location of an electron
  3. We cannot determine the exact path and location of an electron simultaneously
  4. None of the above
3. 
What can be clearly stated about the uncertainty of position, assuming that the uncertainty of momentum is low?
  1. The uncertainty of position is also low
  2. The uncertainty of position is high
  3. The uncertainty of position is equivalent to that of momentum
  4. The uncertainty of position is indeterminate
4. 
What is the uncertainty in the position of an electron, ∆x, assuming that ∆v=0.283 m/s?
  1. [math]2.05 xx 10^-3 m[/math]
  2. [math]2.05 xx 10^-4 m[/math]
  3. [math]1.025 xx 10^-3 m[/math]
  4. None of the above
5. 
What is the uncertainty in the position of an electron, ∆x, assuming that ∆v=0.94 m/s?
  1. [math]6.16 xx 10^-5 m[/math]
  2. [math]6.16 xx 10^-4 m[/math]
  3. [math]3.08 xx 10^-5 m[/math]
  4. [math]3.08 xx 10^-4 m[/math]
6. 
What is the uncertainty in the position of a 1.40-g object, ∆x, assuming that ∆v=0.803 m/s?
  1. [math]4.69 xx 10^-34 m[/math]
  2. [math]4.69 xx 10^-35 m[/math]
  3. [math]4.69 xx 10^-33 m[/math]
  4. [math]2.345 xx 10^-35 m[/math]
7. 
What is the uncertainty in the velocity of an electron, ∆v, assuming that the uncertainty in position, ∆x, is equivalent to [math]5.90 xx 10^-3 m[/math]?
  1. [math]9.81 xx 10^-4 m/s[/math]
  2. [math]1.962 xx 10^-2 m/s[/math]
  3. [math]9.81 xx 10^-3 m/s[/math]
  4. None of the above
8. 
What is the uncertainty in the velocity of an electron, ∆v, assuming that the uncertainty in position, ∆x, is equivalent to [math]7.99xx10^-4 m[/math]?
  1. 0.148 m/s
  2. 0.072 m/s
  3. 0.015 m/s
  4. 0.036 m/s
9. 
In your own words, explain why the Heisenberg Uncertainty Principle has a greater impact on subatomic particles than it has on objects on the macroscopic scale.










10. 
As the value of mass increases, the value of ∆p                         , while the value of ∆x                          as a result.

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