and Density. Stating a Measurement. In every measurement there is a. Number . followed by a . Unit . from a measuring . device. International System of Units (SI). adopted in 1960. seven base units which all others can be derived. ID: 341719
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Matter and DensitySlide2
Stating a Measurement
In every measurement there is a
followed by a
from a measuring
International System of Units (SI)
adopted in 1960seven base units which all others can be derivedm, kg, K, s, mol, cd, ASlide4
Le Système international d'unités The only countries that have not officially adopted SI are Liberia (in western Africa) and Myanmar (a.k.a. Burma, in SE Asia), but now these are reportedly using metric regularlyMetrication is a process that does not happen all at once, but is rather a process that happens over time. Among countries with non-metric usage, the U.S. is the only country significantly holding out. The U.S. officially adopted SI in 1866.
Information from U.S. Metric AssociationSlide5
Common Metric PrefixesSlide6Slide7
properties are that it has:mass: amount of matter (atoms) in an objectvolume: amount of space an object takes updensity: the mass per unit volume of an object
What some things that are not matter?Slide8
Lengtha linear measurementmeter (m)common units- cm, m, kmSlide9
Volumespace occupied by a sample of mattercubic meter (m3) but we use the non SI unit liter (L) most of the time insteadcommon units- L, ml, cm3, µLshould be measured at 0°CSlide10
Massthis in NOT weightmeasures the quantity of matterkilogram (kg)common units- kg, g, mg, µgSlide11
Temperaturemeasures kinetic energy of particleskelvin (K)common units are K and °C
= 1 degree CelsiusSlide12
Match L) length M) mass V) volume ____ A. A bag of tomatoes is 4.6 kg. ____ B. A person is 2.0 m tall. ____ C. A medication contains 0.50 g Aspirin. ____ D. A bottle contains 1.5 L of water.
an intensive or intrinsic property of matterthe ratio of an object’s mass to its volumedepends on only on the substance, NOT ON THE SIZE of the substanceas temperature increases, density normally decreases (thermal expansion)
Back to the Future “Your are my density” clip. Back to the Future “Your are my density” clipSlide14Slide15
D = density
M = massV = volume
D = M/VSlide16
A piece of lead has a mass of 56.4 g and a volume of 5.3 cm3. Calculate its density.
M= 56.4 g D=M/V
V= 5.3 cm3
set up problem answer w/ unit of measurement
3 is same as ml so sometimes see g/ml