Estimation of physical quantities Key Terms

Order of Magnitude

A class of scale or size used to compare quantities, typically expressed as a power of ten.

Sensible Estimate

A rough calculation or approximation that is reasonable and based on known values or assumptions.

Approximate Value

A value that is close to the actual amount but not exact, used for quick calculations or checks.

Order of Magnitude

A rough estimate of a quantity expressed as a power of ten, indicating its scale.

Assumption in Estimation

A basic premise or condition accepted as true for the purpose of making an estimate.

Sensible Estimate

A reasonable approximation of a physical quantity based on known values and logical reasoning.

Order of Magnitude

A class of scale or size that is a power of ten, used to estimate the size of a physical quantity.

Sensible Estimate

A rough calculation that provides a reasonable approximation of a physical quantity based on known values and assumptions.

Approximate Value

A value that is close to the actual amount but not exact, used to simplify calculations and check the realism of results.

estimated value

A value derived from approximations or assumptions, used when exact data is unavailable.

calculated value

A value obtained through mathematical operations based on precise measurements and established formulas.

comparison reasoning

The process of evaluating the differences and similarities between estimated and calculated values to assess their validity.