What statements best define percent error? Check all that apply. - It is a mathematical way of showing accuracy.
- The higher the percent error, the more accurate the data set.
- The higher the percent error, the less accurate the data set.
- Only the experimental value is needed to calculate percent error.
- Only the actual, or accepted, value is needed to calculate percent error.
- A percent error always has a positive value.


It is a mathematical way of showing accuracy.
The higher the percent error, the less accurate the data set.
A percent error always has a positive value.

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It may seem strange that the selected velocity does not depend on either the mass or the charge of the particle. (for example, would the velocity of a neutral particle be selected by passage through this device? ) the explanation of this is that the mass and the charge control the resolution of the device--particles with the wrong velocity will be accelerated away from the straight line and will not pass through the exit slit. if the acceleration depends strongly on the velocity, then particles with just slightly wrong velocities will feel a substantial transverse acceleration and will not exit the selector. because the acc