LE: General Physics (Accuracy VS Precision)

Question 1

How close a measurement is to the correct value for that measurement.

Answer 1

Accuracy

Question 2

How close the agreement is between repeated independent measurements.

Answer 2

Precision

Question 3

________ is not a
“mistake”—it’s part of the measuring process.

Answer 3

Error

Question 4

___________ are reproducible inaccuracies that are consistently
in the same direction.

Answer 4

Systematic Errors

Question 5

Describes errors that fluctuate due to the
unpredictability or uncertainty inherent in your measuring process, or
the variation in the quantity you’re trying to measure.

Answer 5

Random Errors

Question 6

Measurements can never be exact.

Answer 6

Uncertainty

Question 7

The __________ in a quantity is the actual amount by which the quantity is uncertain.

Answer 7

Absolute Uncertainty

Question 8

Provide a percentage of the central value
wherein the true value must lie.

Answer 8

Relative Uncertainty

Question 9

Convert from relative to absolute and vice versa:

5 ± 1

Answer 9

20%

Question 10

Convert from relative to absolute and vice versa:

45 ± 20%

Answer 10

9

Question 11

Convert from relative to absolute and vice versa:

223 ± 5

Answer 11

2%

Question 12

Relative to Absolute Uncertainty Formula

Answer 12

Relative Uncertainity
—————————— x Value
100%

Question 13

Absolute to Relative Uncertainty Formula

Answer 13

Absolute Uncertainty
—————————— x 100
Value