Measurements, SI Units, and SIG Figs

Flashcards focusing on reading measurements, significant figures, rounding rules, SI units, intensive vs extensive properties, density, and unit conversions.

The liquid level in a graduated cylinder is read at the bottom of the __.

meniscus

When reporting a measured value, you should keep the digits you know and round to the appropriate __.

significant figures

In multiplication, the final result should have the number of sig figs.

fewest

When rounding, you apply the rule where 5 is rounded to the nearest even digit.

round-to-even

When solving problems, you must always carry the through the calculations.

units

One liter is equal to _ milliliters.

1000

The SI base unit for mass is __.

kilogram

Density is defined as mass divided by _.

volume

The SI unit for volume is .

cubic meters

The melting point of ice is _ degrees Celsius.

0

The boiling point of water at 1 atm is _ degrees Celsius.

100

An property does not change with the amount of material.

intensive

An property depends on the quantity of material.

extensive

Examples of intensive properties include density, melting point, boiling point, viscosity, and .

temperature

Examples of extensive properties include mass, volume, and _.

number of moles

Volume can be found from mass and density using V = _ / density.

mass

To convert Fahrenheit to Celsius, you first convert to _, then to Kelvin.

Celsius

When a calculation involves a ratio, placing the expression in _ helps avoid calculator errors.

brackets

High consistency of repeated measurements is called .

precision

Closeness to the true value is called .

accuracy

Absolute zero is the theoretical temperature where molecular motion .

stops

One liter is equal to _ milliliters.

1000

The density of water is approximately _ g/mL.

1

One cubic centimeter equals one milliliter, so 1 mL = _ cm^3.

1

In problems with multiple operations, the final answer should have the _ number of decimal places among the quantities used.

least

The final numerical result should have the correct number of _.

significant figures

Common SI prefixes include milli (10^-3) and femto (10^-15). The prefix milli corresponds to 10 to the _ power.

negative three

Density is mass over volume, symbolically _ = m / V.

rho