Science 902 self test 3 study guide

buoyancy

Archimedes' Principle

precision

Consistency in data (getting the same or close to the same result over and over)

weight

Measure of the pull of gravity on an object

Archimedes'Principle

The buoyant force exerted by a liquid is exactly equal to the mass of the liquid displacement

accuracy and precision

accuracy is actual measurement precision is how consistently the same measurement is produced

standard of measurement

an accepted unit of measurement

kilogram

basic unit of mass

liter

basic unit of volume

accuracy

closest to actual measurement

density and specific gravity

density measures packedness specific gravity is a ratio of densities

The standard unit of volume is the __________.

liter

The __________ of a substance remains constant regardless of where you go in the universe.

mass

density

mass divided by volume

mass and weight

mass is measure of stuff weight is measure of gravitational attraction

mass

measure of amount of "stuff"

One kilogram is the mass of __________ liters of water.

one

Three factors that affect density are ________, _________<, and __________.

phase, temperature, and pressure

specific gravity

ratio of densities

volume

unreliable quality of matter

The __________ of a substance is directly related to the pull of gravity.

weight