2 8 density
•Download as PPT, PDF•
1 like•749 views
The document discusses density, which is a measurement that compares the mass of an object to its volume. It provides examples of calculating density using measurements of mass and volume or volume displacement in water. Objects that are more dense than water will sink, while less dense objects will float. The document also discusses using density as a conversion factor between units of mass and volume.
Report
Share
Report
Share
![[object Object],[object Object],Chapter 2 Measurements Basic Chemistry Copyright © 2011 Pearson Education, Inc. Objects that sink in water are more dense than water; objects that float in water are less dense.](https://image.slidesharecdn.com/28density-110925073248-phpapp01/85/2-8-density-1-320.jpg)
![[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Density Basic Chemistry Copyright © 2011 Pearson Education, Inc.](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
Recommended
Cl2 complexes and characterization of (pva [co(nh3)5 cl]cl2]) composites
This document describes the preparation and characterization of polyvinyl alcohol (PVA) composites with the addition of [Co(NH3)5Cl]Cl2 complexes. The composites were prepared by casting technique with different thicknesses and concentrations of the complex. Optical properties including absorption, absorption coefficient, extinction coefficient, refractive index, and dielectric constant were measured using UV-visible spectroscopy. The results showed that all optical properties increased with higher concentrations of the [Co(NH3)5Cl]Cl2 complex in the PVA composites.
Fabrication and characterization of conducting polymer composite
The document summarizes research on fabricating and characterizing a conducting polymer composite of polyvinylpyrrolidone (PVP) and potassium hydroxide (KOH). Specifically:
1. PVP and KOH were mixed using a solution casting method to prepare polymer composite specimens.
2. Tests found that the composite's conductivity and microhardness increased with higher KOH concentrations. The highest conductivity was 4×10-4 S/cm at 35 wt% KOH.
3. Microstructure analysis using an optical microscope showed even KOH distribution throughout the composite at 35 wt% KOH, the concentration with highest conductivity.
Promoting Effect of Graphene on Dye-Sensitized Solar Cells
This document discusses a study on incorporating graphene into TiO2 films for dye-sensitized solar cells (DSSCs). The key findings are:
1) A simple approach was used to prepare graphene-doped TiO2 films for DSSCs without pre-reducing graphene oxide.
2) Incorporating graphene increased the short-circuit current density and power conversion efficiency of the DSSCs by 52.4% and 55.3% respectively, due to graphene's promoting effect on electron transfer.
3) However, the promoting effect of graphene depends on its content - efficiency increases to a maximum then decreases with more graphene, as graphene can also absorb light and decrease dye loading.
Enhancement of Heat Transfer in Heat Pipes using Al2O3/Benzene Based Nano-coo...
Nowadays, the world is experiencing many challenges in solving heat transfer issues in various engineering systems. However, limited approaches are available to solve such challenges. To increase heat transfer, many researchers found that the Nanofluid is one of the feasible coolant which increase the working efficiency of many engineering devices. Electronic equipment dissipates enormous amount of heat while in operation which directly affect the work efficiency. To increase the efficiency it is mandatory to remove the heat by using proper coolant. Hence, the heat pipes are employed in electronic devices to remove the heat. To enhance the heat transfer in heat pipe nano-coolants may be used. In this present work, thermophysical properties of different types of base fluids with Aluminium oxide (Al2O3) Nanoparticles have been investigated with different concentrations of Nanoparticles (1-5 % by volume) at 300K temperature. The effective thermal conductivity of Nanofluids is compared with the base fluid and the results show enhancement in thermal conductivity. The thermal conductivity of Nanofluid is increased up to 3% at 300K with 1 % by volume concentration of nanoparticles and 15% at 5% by volume of concentration as compared to Benzene (C6H6) base fluid.
Ppt final
This document presents research on developing a lead-free and environmentally-friendly substitute for PVDF polymer composites. It investigates using potassium sodium niobate (KNN) ceramic as a filler material in a polyacrylonitrile (PAN) polymer matrix composite. KNN is identified as a promising substitute due to its comparable piezoelectric and dielectric properties to lead-based ceramics, as well as being non-toxic. The document outlines the experimental process of fabricating PAN/KNN composites and evaluating their properties through various characterization techniques. Future work is proposed to further optimize the composite properties by controlling parameters like KNN particle size and volume fraction in the polymer matrix.
Separacion de H2S
This document discusses gas desulfurization via electrochemical membranes. It introduces electrochemical membrane separation as a highly selective and efficient process that occurs through the application of a voltage gradient, which destroys contaminant species. Typical membrane gas separations are explained, with molecular sieves used to remove H2S based on pore size selectivity. The process overview describes sour gas passing through a cathode into a membrane, transporting sulfide ions to the anode where an oxidation reaction produces oxidized sulfide ions. Experimental results show over 80% efficiency for removing H2S from coal gas at various conditions.
2009_Nguyen et al._Journal of Organometallic Chemistry
The document describes the preparation and characterization of new dinuclear half-titanocene complexes with ortho- and meta-xylene linkages for use as catalysts in styrene polymerization. Specifically, it details the synthesis of four dinuclear complexes containing either ortho- or meta-xylene bridges and either chloride or aryloxo ligands on the titanium centers. The catalysts were characterized and found to be effective for producing syndiotactic polystyrene when combined with methylaluminoxane. Testing revealed that activity increased with meta-xylene bridges and aryloxo ligands compared to ortho-xylene bridges and chloride ligands, respectively. The activity was also influenced by temperature, aluminum-to
Computation of Dielectric Constant and Loss Factor of Water and Dimethylsulph...
This study examined the computation of the dielectric constant (ε′) and dielectric loss factor (ε′′) of water and dimethylsulphoxide (DMSO)at temperature 20oc, 30oc, 40oc and 500C within the frequency range of f GHz using Debye equations. The Debye equations were derived, and the experimental values of the static dielectric constant (εs), dielectric constant at high frequency (ε ) and the relaxation time (τ) of water and DMSO at those temperatures were substituted into the derived equations and the dielectric constant (ε′) and loss factor (ε′′) of water and DMSO were computed with aid of maple-13 and results were generated. These results revealed that the method is capable of reproducing good results forwork done using single Debye and that of the reflection cell ofdimethylsulphoxide.
Recommended
Cl2 complexes and characterization of (pva [co(nh3)5 cl]cl2]) composites
This document describes the preparation and characterization of polyvinyl alcohol (PVA) composites with the addition of [Co(NH3)5Cl]Cl2 complexes. The composites were prepared by casting technique with different thicknesses and concentrations of the complex. Optical properties including absorption, absorption coefficient, extinction coefficient, refractive index, and dielectric constant were measured using UV-visible spectroscopy. The results showed that all optical properties increased with higher concentrations of the [Co(NH3)5Cl]Cl2 complex in the PVA composites.
Fabrication and characterization of conducting polymer composite
The document summarizes research on fabricating and characterizing a conducting polymer composite of polyvinylpyrrolidone (PVP) and potassium hydroxide (KOH). Specifically:
1. PVP and KOH were mixed using a solution casting method to prepare polymer composite specimens.
2. Tests found that the composite's conductivity and microhardness increased with higher KOH concentrations. The highest conductivity was 4×10-4 S/cm at 35 wt% KOH.
3. Microstructure analysis using an optical microscope showed even KOH distribution throughout the composite at 35 wt% KOH, the concentration with highest conductivity.
Promoting Effect of Graphene on Dye-Sensitized Solar Cells
This document discusses a study on incorporating graphene into TiO2 films for dye-sensitized solar cells (DSSCs). The key findings are:
1) A simple approach was used to prepare graphene-doped TiO2 films for DSSCs without pre-reducing graphene oxide.
2) Incorporating graphene increased the short-circuit current density and power conversion efficiency of the DSSCs by 52.4% and 55.3% respectively, due to graphene's promoting effect on electron transfer.
3) However, the promoting effect of graphene depends on its content - efficiency increases to a maximum then decreases with more graphene, as graphene can also absorb light and decrease dye loading.
Enhancement of Heat Transfer in Heat Pipes using Al2O3/Benzene Based Nano-coo...
Nowadays, the world is experiencing many challenges in solving heat transfer issues in various engineering systems. However, limited approaches are available to solve such challenges. To increase heat transfer, many researchers found that the Nanofluid is one of the feasible coolant which increase the working efficiency of many engineering devices. Electronic equipment dissipates enormous amount of heat while in operation which directly affect the work efficiency. To increase the efficiency it is mandatory to remove the heat by using proper coolant. Hence, the heat pipes are employed in electronic devices to remove the heat. To enhance the heat transfer in heat pipe nano-coolants may be used. In this present work, thermophysical properties of different types of base fluids with Aluminium oxide (Al2O3) Nanoparticles have been investigated with different concentrations of Nanoparticles (1-5 % by volume) at 300K temperature. The effective thermal conductivity of Nanofluids is compared with the base fluid and the results show enhancement in thermal conductivity. The thermal conductivity of Nanofluid is increased up to 3% at 300K with 1 % by volume concentration of nanoparticles and 15% at 5% by volume of concentration as compared to Benzene (C6H6) base fluid.
Ppt final
This document presents research on developing a lead-free and environmentally-friendly substitute for PVDF polymer composites. It investigates using potassium sodium niobate (KNN) ceramic as a filler material in a polyacrylonitrile (PAN) polymer matrix composite. KNN is identified as a promising substitute due to its comparable piezoelectric and dielectric properties to lead-based ceramics, as well as being non-toxic. The document outlines the experimental process of fabricating PAN/KNN composites and evaluating their properties through various characterization techniques. Future work is proposed to further optimize the composite properties by controlling parameters like KNN particle size and volume fraction in the polymer matrix.
Separacion de H2S
This document discusses gas desulfurization via electrochemical membranes. It introduces electrochemical membrane separation as a highly selective and efficient process that occurs through the application of a voltage gradient, which destroys contaminant species. Typical membrane gas separations are explained, with molecular sieves used to remove H2S based on pore size selectivity. The process overview describes sour gas passing through a cathode into a membrane, transporting sulfide ions to the anode where an oxidation reaction produces oxidized sulfide ions. Experimental results show over 80% efficiency for removing H2S from coal gas at various conditions.
2009_Nguyen et al._Journal of Organometallic Chemistry
The document describes the preparation and characterization of new dinuclear half-titanocene complexes with ortho- and meta-xylene linkages for use as catalysts in styrene polymerization. Specifically, it details the synthesis of four dinuclear complexes containing either ortho- or meta-xylene bridges and either chloride or aryloxo ligands on the titanium centers. The catalysts were characterized and found to be effective for producing syndiotactic polystyrene when combined with methylaluminoxane. Testing revealed that activity increased with meta-xylene bridges and aryloxo ligands compared to ortho-xylene bridges and chloride ligands, respectively. The activity was also influenced by temperature, aluminum-to
Computation of Dielectric Constant and Loss Factor of Water and Dimethylsulph...
This study examined the computation of the dielectric constant (ε′) and dielectric loss factor (ε′′) of water and dimethylsulphoxide (DMSO)at temperature 20oc, 30oc, 40oc and 500C within the frequency range of f GHz using Debye equations. The Debye equations were derived, and the experimental values of the static dielectric constant (εs), dielectric constant at high frequency (ε ) and the relaxation time (τ) of water and DMSO at those temperatures were substituted into the derived equations and the dielectric constant (ε′) and loss factor (ε′′) of water and DMSO were computed with aid of maple-13 and results were generated. These results revealed that the method is capable of reproducing good results forwork done using single Debye and that of the reflection cell ofdimethylsulphoxide.
2.8 Density[1]
The document discusses density and provides examples of calculating density using mass and volume. It defines density as mass divided by volume and gives densities of common substances like osmium and zinc. Examples show calculating volume displacement when objects are submerged in water and using densities to determine if objects will sink or float.
Biology density
The document discusses density and how it relates to floating and sinking. It defines density as mass divided by volume and explains that objects with a density less than 1 g/cm3 will float in water while objects with a density greater than 1 g/cm3 will sink. Examples are given of ice floating and a Diet Coke floating while a regular Coke sinks due to differences in their densities relative to the density of water.
Density NOTES
This document discusses density and provides examples of calculating density from mass and volume measurements. It defines density as an intensive property that does not depend on amount of matter. Density is the mass per unit volume and has consistent units of g/mL or g/cm3. Examples show calculating density of metals from given mass and volume, and calculating volume or mass when the other property and density are known. Percent error in density measurements is also explained.
The Scientific Methods
The scientific method is a set of procedures used to develop explanations of natural phenomena and possibly to predict additional phenomena. For example,
The average temperature of seawater increases, the seawater will become less dense, its volume will increase, and sea level will rise even if no continental ice melts.
Physical and chemical Changes.ppt
A physical change alters a substance without changing its chemical identity. During a physical change, no new substance is created and no new chemical bonds form. Examples of physical changes include phase changes like melting, freezing, and vaporization, as well as dissolving and mixing substances that do not undergo chemical reactions.
5.1 Classification Of Matter Part B
This document discusses physical and chemical properties of matter. It begins by defining physical properties such as density, state of matter, and electrical conductivity. It provides examples of calculating density and practice problems. It then discusses clues for identifying chemical properties, such as new substances being formed or gases produced. It compares physical and chemical changes and asks the reader to classify given properties as physical or chemical.
Reec7295 09 tb_chapter03
This document contains a chapter summary and multiple choice questions from Campbell's Biology, 9th Edition about water and its importance for life. Water has unique properties like hydrogen bonding that allow it to act as a solvent for biological molecules and processes. Its high heat capacity and ability to change state also help regulate temperatures. The questions assess understanding of water's polarity, hydrogen bonding, heat transfer properties, and role in acid-base chemistry.
intensive property.ppt
This document discusses volume, density, solubility, and uncertainty in measurement. It defines volume as an extensive property and density as mass divided by volume. It provides examples of converting between volume units like mL, L, and cm3. Density units include g/cm3 and g/mL. The document also defines solubility as the maximum amount of solute that dissolves in solvent at a given temperature. Finally, it discusses significant figures and the rules for determining how many are present in a measurement.
Mole
A document discusses key concepts related to moles, density, concentration, and flow rate in chemical engineering. It begins by defining a mole as a specific number of particles such as atoms or molecules. It then discusses how to convert between moles and mass and calculates molecular weight. Examples are provided to demonstrate calculating density from specific gravity and converting between different units of mass and volume. The document concludes by defining flow rate, mole fraction, and mass fraction and providing an example of converting between mole and mass fraction.
Chem10171 day1
This document provides information about CHEM 10171-04, a chemistry course taught by Dr. Nicole Brinkmann. It discusses who should take the course, which covers basic chemistry concepts for science majors. It then reviews the scientific method and key chemistry concepts like the nature of matter, physical and chemical changes, energy, density, and measurement techniques.
Chapter 10: The Mole
This document provides an overview of key concepts in chemical quantities including:
1) The mole is a unit used to measure very large amounts of substances and is defined as 6.02x10^23 items. It can represent atoms, molecules, ions, or formula units.
2) Molar mass is the mass of one mole of a substance in grams and can be used to determine the mass of any amount of a substance.
3) Molar conversions allow calculations between the number of moles, mass in grams, and number of particles using molar mass and Avogadro's number.
Nikkie
The metric system evolved into the International System of Units (SI Units) which was adopted in 1960. The key features of the SI are decimalization, prefixes for units, and base units defined by physical constants like the speed of light. The English system is still used in the US but has been replaced in most other places by the SI.
Engineering chemistry.pptx
This document outlines the topics covered in the Engineering Chemistry course including water and its treatment, electrochemistry and batteries, polymers, fuels and combustion, cement, refractories, lubricants and composites. The course aims to provide understanding of water properties and treatment, electrochemical cells and batteries, polymer engineering applications, fuel combustion and properties of basic construction materials. Key concepts covered include water hardness, its causes and types, water treatment methods, electrochemistry principles, polymer classifications and applications.
Density, Mass, & Weight
1) Density is a measurement of the amount of mass an object has per its volume. It can be calculated by taking an object's mass and dividing it by its volume.
2) There are two ways to affect an object's density - changing its mass while keeping the volume the same, or changing the volume while keeping the mass the same. Increasing the mass or decreasing the volume will increase density.
3) Denser objects will sink below less dense objects when placed in the same container of liquid.
Chapter #1 Spring 2008
Chemistry is the study of matter, its properties, and the changes it undergoes. Matter is anything that has mass and takes up space, and is composed of atoms. Atoms are the building blocks of matter and each element is made of the same type of atom. Compounds are made of two or more different elements chemically bonded together. Mixtures contain two or more substances mixed but not chemically combined. Measurements in chemistry use significant figures and units to accurately quantify properties and changes in matter.
Chapter #1 Spring 2008
Chemistry is the study of matter, its properties, and the changes it undergoes. Matter is anything that has mass and takes up space, and is composed of atoms. Atoms are the building blocks of matter and each element is made of the same type of atom. Compounds are made of two or more different elements chemically bonded together. Mixtures contain two or more substances mixed but not chemically combined. Measurements in chemistry use significant figures and the SI system of units including meters, grams, and liters.
Density worksheet 2
This document is a density worksheet that contains questions about defining and calculating density. It asks students to define mass, volume, and density. It also asks students to calculate the densities of various objects using their dimensions and mass, and to determine which materials would float based on their densities compared to water. The final question asks students to order materials by density in a graduated cylinder.
Calculating Density
This document discusses density and provides examples of calculating density using the GUESS method. It defines density as the mass of an object divided by its volume (D = m/V). Examples are given for the densities of liquids, solids, and gases. The document also shows how to calculate density when given the mass and volume or when given the density and one of mass or volume. Calculations are worked through step-by-step using the GUESS method of identifying givens, unknowns, equations, substitutions, and solutions.
HYDRAULICS Density & Relative Density + Que.ppt
The document defines density as mass per unit volume and provides the formulas for calculating density, mass, and volume given two of the quantities. It also defines relative density as the ratio of the mass of a substance to the mass of an equal volume of water. Some example calculations are provided to demonstrate how to use the formulas and concepts to calculate density, mass, volume, and relative density for different substances and scenarios.
Physical vs. Chemical Properties
This document discusses physical and chemical properties of matter. Physical properties can be observed without changing the identity of the substance and include properties like state of matter, density, and melting/boiling points. Chemical properties can only be observed by changing the substance's identity through chemical reactions and include properties like flammability and reactivity. Density is calculated by dividing a substance's mass by its volume and can be used to identify substances or determine if they will float or sink.
Wk9 essay elements
This document outlines the key elements of a good essay, including an introduction that filters into the topic, a clear thesis statement with main points, a body with logical data supporting the thesis, a conclusion referencing the thesis and ending with a call to action or poetic statement, and citations for all statements.
Wk5 lab 4 density of pennies
This lab experiment involves measuring and comparing the mass, volume, and density of pre-1982 and post-1982 pennies. Students will take multiple trials to determine the average mass and volume of pennies from each time period, then use those values to calculate and compare the average density of pre-1982 and post-1982 pennies. The objectives are to master measurement techniques and determine if there is a difference in density between older and newer pennies due to a known compositional change that occurred in 1982.
More Related Content
Similar to 2 8 density
2.8 Density[1]
The document discusses density and provides examples of calculating density using mass and volume. It defines density as mass divided by volume and gives densities of common substances like osmium and zinc. Examples show calculating volume displacement when objects are submerged in water and using densities to determine if objects will sink or float.
Biology density
The document discusses density and how it relates to floating and sinking. It defines density as mass divided by volume and explains that objects with a density less than 1 g/cm3 will float in water while objects with a density greater than 1 g/cm3 will sink. Examples are given of ice floating and a Diet Coke floating while a regular Coke sinks due to differences in their densities relative to the density of water.
Density NOTES
This document discusses density and provides examples of calculating density from mass and volume measurements. It defines density as an intensive property that does not depend on amount of matter. Density is the mass per unit volume and has consistent units of g/mL or g/cm3. Examples show calculating density of metals from given mass and volume, and calculating volume or mass when the other property and density are known. Percent error in density measurements is also explained.
The Scientific Methods
The scientific method is a set of procedures used to develop explanations of natural phenomena and possibly to predict additional phenomena. For example,
The average temperature of seawater increases, the seawater will become less dense, its volume will increase, and sea level will rise even if no continental ice melts.
Physical and chemical Changes.ppt
A physical change alters a substance without changing its chemical identity. During a physical change, no new substance is created and no new chemical bonds form. Examples of physical changes include phase changes like melting, freezing, and vaporization, as well as dissolving and mixing substances that do not undergo chemical reactions.
5.1 Classification Of Matter Part B
This document discusses physical and chemical properties of matter. It begins by defining physical properties such as density, state of matter, and electrical conductivity. It provides examples of calculating density and practice problems. It then discusses clues for identifying chemical properties, such as new substances being formed or gases produced. It compares physical and chemical changes and asks the reader to classify given properties as physical or chemical.
Reec7295 09 tb_chapter03
This document contains a chapter summary and multiple choice questions from Campbell's Biology, 9th Edition about water and its importance for life. Water has unique properties like hydrogen bonding that allow it to act as a solvent for biological molecules and processes. Its high heat capacity and ability to change state also help regulate temperatures. The questions assess understanding of water's polarity, hydrogen bonding, heat transfer properties, and role in acid-base chemistry.
intensive property.ppt
This document discusses volume, density, solubility, and uncertainty in measurement. It defines volume as an extensive property and density as mass divided by volume. It provides examples of converting between volume units like mL, L, and cm3. Density units include g/cm3 and g/mL. The document also defines solubility as the maximum amount of solute that dissolves in solvent at a given temperature. Finally, it discusses significant figures and the rules for determining how many are present in a measurement.
Mole
A document discusses key concepts related to moles, density, concentration, and flow rate in chemical engineering. It begins by defining a mole as a specific number of particles such as atoms or molecules. It then discusses how to convert between moles and mass and calculates molecular weight. Examples are provided to demonstrate calculating density from specific gravity and converting between different units of mass and volume. The document concludes by defining flow rate, mole fraction, and mass fraction and providing an example of converting between mole and mass fraction.
Chem10171 day1
This document provides information about CHEM 10171-04, a chemistry course taught by Dr. Nicole Brinkmann. It discusses who should take the course, which covers basic chemistry concepts for science majors. It then reviews the scientific method and key chemistry concepts like the nature of matter, physical and chemical changes, energy, density, and measurement techniques.
Chapter 10: The Mole
This document provides an overview of key concepts in chemical quantities including:
1) The mole is a unit used to measure very large amounts of substances and is defined as 6.02x10^23 items. It can represent atoms, molecules, ions, or formula units.
2) Molar mass is the mass of one mole of a substance in grams and can be used to determine the mass of any amount of a substance.
3) Molar conversions allow calculations between the number of moles, mass in grams, and number of particles using molar mass and Avogadro's number.
Nikkie
The metric system evolved into the International System of Units (SI Units) which was adopted in 1960. The key features of the SI are decimalization, prefixes for units, and base units defined by physical constants like the speed of light. The English system is still used in the US but has been replaced in most other places by the SI.
Engineering chemistry.pptx
This document outlines the topics covered in the Engineering Chemistry course including water and its treatment, electrochemistry and batteries, polymers, fuels and combustion, cement, refractories, lubricants and composites. The course aims to provide understanding of water properties and treatment, electrochemical cells and batteries, polymer engineering applications, fuel combustion and properties of basic construction materials. Key concepts covered include water hardness, its causes and types, water treatment methods, electrochemistry principles, polymer classifications and applications.
Density, Mass, & Weight
1) Density is a measurement of the amount of mass an object has per its volume. It can be calculated by taking an object's mass and dividing it by its volume.
2) There are two ways to affect an object's density - changing its mass while keeping the volume the same, or changing the volume while keeping the mass the same. Increasing the mass or decreasing the volume will increase density.
3) Denser objects will sink below less dense objects when placed in the same container of liquid.
Chapter #1 Spring 2008
Chemistry is the study of matter, its properties, and the changes it undergoes. Matter is anything that has mass and takes up space, and is composed of atoms. Atoms are the building blocks of matter and each element is made of the same type of atom. Compounds are made of two or more different elements chemically bonded together. Mixtures contain two or more substances mixed but not chemically combined. Measurements in chemistry use significant figures and units to accurately quantify properties and changes in matter.
Chapter #1 Spring 2008
Chemistry is the study of matter, its properties, and the changes it undergoes. Matter is anything that has mass and takes up space, and is composed of atoms. Atoms are the building blocks of matter and each element is made of the same type of atom. Compounds are made of two or more different elements chemically bonded together. Mixtures contain two or more substances mixed but not chemically combined. Measurements in chemistry use significant figures and the SI system of units including meters, grams, and liters.
Density worksheet 2
This document is a density worksheet that contains questions about defining and calculating density. It asks students to define mass, volume, and density. It also asks students to calculate the densities of various objects using their dimensions and mass, and to determine which materials would float based on their densities compared to water. The final question asks students to order materials by density in a graduated cylinder.
Calculating Density
This document discusses density and provides examples of calculating density using the GUESS method. It defines density as the mass of an object divided by its volume (D = m/V). Examples are given for the densities of liquids, solids, and gases. The document also shows how to calculate density when given the mass and volume or when given the density and one of mass or volume. Calculations are worked through step-by-step using the GUESS method of identifying givens, unknowns, equations, substitutions, and solutions.
HYDRAULICS Density & Relative Density + Que.ppt
The document defines density as mass per unit volume and provides the formulas for calculating density, mass, and volume given two of the quantities. It also defines relative density as the ratio of the mass of a substance to the mass of an equal volume of water. Some example calculations are provided to demonstrate how to use the formulas and concepts to calculate density, mass, volume, and relative density for different substances and scenarios.
Physical vs. Chemical Properties
This document discusses physical and chemical properties of matter. Physical properties can be observed without changing the identity of the substance and include properties like state of matter, density, and melting/boiling points. Chemical properties can only be observed by changing the substance's identity through chemical reactions and include properties like flammability and reactivity. Density is calculated by dividing a substance's mass by its volume and can be used to identify substances or determine if they will float or sink.
Similar to 2 8 density (20)
More from Paul Cuaresma
Wk9 essay elements
This document outlines the key elements of a good essay, including an introduction that filters into the topic, a clear thesis statement with main points, a body with logical data supporting the thesis, a conclusion referencing the thesis and ending with a call to action or poetic statement, and citations for all statements.
Wk5 lab 4 density of pennies
This lab experiment involves measuring and comparing the mass, volume, and density of pre-1982 and post-1982 pennies. Students will take multiple trials to determine the average mass and volume of pennies from each time period, then use those values to calculate and compare the average density of pre-1982 and post-1982 pennies. The objectives are to master measurement techniques and determine if there is a difference in density between older and newer pennies due to a known compositional change that occurred in 1982.
Physics Domino effect Lab
This document outlines an experiment to investigate how distance, time, and average speed are related by measuring how quickly a row of dominoes can be toppled. Students will set up rows of dominoes with varying average distances between pieces, measure the time it takes for each row to fall, calculate average speeds, and graph the results to analyze the relationship between average distance and toppling speed. The objectives are to understand how these variables are interrelated and to master graphing techniques.
Physics - Prelab1 Speed CNC 9-30-11
This physics pre-lab document instructs students to read pages 40-41 comparing and contrasting speed versus velocity, addressing the key concepts of time and distance by drawing a Venn diagram. It also asks students to compare and contrast instantaneous speed versus average speed using the same diagramming approach. Finally, students are to write a three paragraph essay comparing and contrasting all the key concepts and relating them to their own experiences, discussing where speed and velocity can be observed and why these concepts are important.
2 4 significant_fig_in_calc
The document discusses significant figures and rounding in calculations involving measurement data. It explains that calculated answers should have the same number of significant figures as the measured values used. For multiplication and division, the final answer should have the same number of significant figures as the value with the fewest significant figures. For addition and subtraction, the final answer should have the same number of decimal places as the value with the fewest decimal places. Examples are provided to demonstrate rounding calculated answers to the correct number of significant figures or decimal places.
2 2 scientific_notation
The document discusses scientific notation, which is used to write very large or very small numbers in a standardized way. Scientific notation represents a number as a coefficient multiplied by a power of 10. The power of 10 indicates how many places the decimal point is moved. Examples are provided to demonstrate how numbers are converted between standard and scientific notation formats. Practice problems are included for the reader to test their understanding of converting between the two number representation systems.
2 1 units_of_measurement
The document discusses units of measurement used in chemistry. It introduces common units like meters, liters, grams, seconds that are used to measure length, volume, mass and time. These units make up the International System of Units (SI) and metric system which are decimal systems used widely in science. Examples are given of measuring tools and conversions between units like inches to centimeters. Key types of measurements covered are length, volume, mass, temperature and time.
2 3 measured_number_and_sig
This document discusses measured numbers and significant figures in measurements. It defines measured numbers as numbers provided from a measurement using a measuring tool. It explains that measured numbers have known digits that are certain, and may have estimated digits that are uncertain. All digits in a measured number, including estimated digits, are considered significant figures. The number of significant figures reported depends on the precision of the measuring tool used. It provides examples of how to determine the number of significant figures in various measurements.
Chem 9 8-11 meters measurement lab
The document provides instructions for a scavenger hunt where students must find classroom items that match approximate width, height, or length measurements in meters or centimeters. Students then choose one item, measure it in the unit given, and convert the measurement to millimeters to show the work.
Prof presentation ed452
This document summarizes the author's experience in an education technology course at the University of Guam in the fall of 2010, where they learned to use various digital tools and platforms like Moodle, Diigo, eBlogger, iMovie, Prezi, PowerPoint, and SlideShare. They also created a professional development video about the course and joined a professional learning network on Classroom 2.0. The author is now more confident in their technology skills and abilities and is looking forward to applying them as a teacher.
Ed271 final presentation
This document summarizes a student's experience in an educational technology course at the University of Guam in Fall 2010. The student learned to use various technologies like Moodle, Google apps, blogging, video editing, and presentation tools. They collaborated with peers in Group 5 on projects, creating rubrics and digital stories. The course covered lesson planning, assistive technology, and the risks of overusing technology. By the end, the student felt they had gained expertise in educational technology and was ready to student teach, though sad to leave their group.
Prof presentation ed452
This document summarizes the author's experience in an education technology course at the University of Guam in the fall of 2010. The author learned to use various educational technologies like Moodle, Diigo, eBlogger, iMovie, iPhoto, Prezi, PowerPoint, and SlideShare. They created a professional development video about the course and joined a professional learning network on Classroom 2.0. Through this class, the author gained confidence and skills with educational technologies that will help them as a new teacher.
Field based study ED489
This field-based study examines whether student teachers are committed to formative assessment. A survey was administered to student teachers to assess their cognitive, affective, and applied commitment. The analysis found that while student teachers believe formative assessment is valuable, they do not feel they received sufficient training and emphasis on strategies from their education program. They plan to use formative assessment but feel they lack practical experience through activities like lesson planning and practicums. The conclusion is that more emphasis and hands-on training in formative assessment strategies is needed for education students to feel fully prepared to apply them.
Tech assessment
This document provides ratings and reviews of 8 technologies: Moodle, Firefox, Google Apps, SlideShare.net, Prezi.com, Diigo.com, VoiceThread.com, and Camino. Moodle, Firefox, Google Apps, SlideShare.net, and Diigo.com receive ratings of 4 or 5 out of 5 for their useful features and educational applications. Prezi.com receives a 3 due to its steep learning curve. VoiceThread.com receives a 4 but has limitations for free accounts. Camino receives a 3 as it has no outstanding features compared to other browsers. In conclusion, many of these technologies could enhance the author's classroom while others may be less useful.
Textual harassment and sexting FINAL
This document discusses textual harassment and sexting, specifically among youth. It defines textual harassment as sending harassing text messages and sexting as sending sexually explicit messages or photos by mobile phone. The document outlines recent legislation in Guam and other states aimed at educating youth about the risks of sexting. It presents alarming statistics from a survey that found 20% of teens have sent nude photos of themselves and 39% have sent sexually suggestive messages. The document provides analysis of the statistics and recommendations for preventing textual harassment, including disabling text messaging or contacting authorities.
More from Paul Cuaresma (15)
Recently uploaded
Top five deadliest dog breeds in America
Thinking of getting a dog? Be aware that breeds like Pit Bulls, Rottweilers, and German Shepherds can be loyal and dangerous. Proper training and socialization are crucial to preventing aggressive behaviors. Ensure safety by understanding their needs and always supervising interactions. Stay safe, and enjoy your furry friends!
A Strategic Approach: GenAI in Education
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
clinical examination of hip joint (1).pdf
described clinical examination all orthopeadic conditions .
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptxMohd Adib Abd Muin, Senior Lecturer at Universiti Utara Malaysia
This slide is special for master students (MIBS & MIFB) in UUM. Also useful for readers who are interested in the topic of contemporary Islamic banking.
Main Java[All of the Base Concepts}.docx
This is part 1 of my Java Learning Journey. This Contains Custom methods, classes, constructors, packages, multithreading , try- catch block, finally block and more.
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
Denis is a dynamic and results-driven Chief Information Officer (CIO) with a distinguished career spanning information systems analysis and technical project management. With a proven track record of spearheading the design and delivery of cutting-edge Information Management solutions, he has consistently elevated business operations, streamlined reporting functions, and maximized process efficiency.
Certified as an ISO/IEC 27001: Information Security Management Systems (ISMS) Lead Implementer, Data Protection Officer, and Cyber Risks Analyst, Denis brings a heightened focus on data security, privacy, and cyber resilience to every endeavor.
His expertise extends across a diverse spectrum of reporting, database, and web development applications, underpinned by an exceptional grasp of data storage and virtualization technologies. His proficiency in application testing, database administration, and data cleansing ensures seamless execution of complex projects.
What sets Denis apart is his comprehensive understanding of Business and Systems Analysis technologies, honed through involvement in all phases of the Software Development Lifecycle (SDLC). From meticulous requirements gathering to precise analysis, innovative design, rigorous development, thorough testing, and successful implementation, he has consistently delivered exceptional results.
Throughout his career, he has taken on multifaceted roles, from leading technical project management teams to owning solutions that drive operational excellence. His conscientious and proactive approach is unwavering, whether he is working independently or collaboratively within a team. His ability to connect with colleagues on a personal level underscores his commitment to fostering a harmonious and productive workplace environment.
Date: May 29, 2024
Tags: Information Security, ISO/IEC 27001, ISO/IEC 42001, Artificial Intelligence, GDPR
-------------------------------------------------------------------------------
Find out more about ISO training and certification services
Training: ISO/IEC 27001 Information Security Management System - EN | PECB
ISO/IEC 42001 Artificial Intelligence Management System - EN | PECB
General Data Protection Regulation (GDPR) - Training Courses - EN | PECB
Webinars: https://pecb.com/webinars
Article: https://pecb.com/article
-------------------------------------------------------------------------------
For more information about PECB:
Website: https://pecb.com/
LinkedIn: https://www.linkedin.com/company/pecb/
Facebook: https://www.facebook.com/PECBInternational/
Slideshare: http://www.slideshare.net/PECBCERTIFICATION
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...Nguyen Thanh Tu Collection
https://app.box.com/s/y977uz6bpd3af4qsebv7r9b7s21935vdHow to Manage Your Lost Opportunities in Odoo 17 CRM
Odoo 17 CRM allows us to track why we lose sales opportunities with "Lost Reasons." This helps analyze our sales process and identify areas for improvement. Here's how to configure lost reasons in Odoo 17 CRM
How to Build a Module in Odoo 17 Using the Scaffold Method
Odoo provides an option for creating a module by using a single line command. By using this command the user can make a whole structure of a module. It is very easy for a beginner to make a module. There is no need to make each file manually. This slide will show how to create a module using the scaffold method.
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Let’s explore the intersection of technology and equity in the final session of our DEI series. Discover how AI tools, like ChatGPT, can be used to support and enhance your nonprofit's DEI initiatives. Participants will gain insights into practical AI applications and get tips for leveraging technology to advance their DEI goals.
Introduction to AI for Nonprofits with Tapp Network
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
DRUGS AND ITS classification slide share
Any substance (other than food) that is used to prevent, diagnose, treat, or relieve symptoms of a
disease or abnormal condition
A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance
The History of Stoke Newington Street Names
Presented at the Stoke Newington Literary Festival on 9th June 2024
www.StokeNewingtonHistory.com
Recently uploaded (20)
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Chapter 4 - Islamic Financial Institutions in Malaysia.pptx
Liberal Approach to the Study of Indian Politics.pdf
Liberal Approach to the Study of Indian Politics.pdf
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
ISO/IEC 27001, ISO/IEC 42001, and GDPR: Best Practices for Implementation and...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
BÀI TẬP BỔ TRỢ TIẾNG ANH 8 CẢ NĂM - GLOBAL SUCCESS - NĂM HỌC 2023-2024 (CÓ FI...
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Manage Your Lost Opportunities in Odoo 17 CRM
How to Build a Module in Odoo 17 Using the Scaffold Method
How to Build a Module in Odoo 17 Using the Scaffold Method
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Executive Directors Chat Leveraging AI for Diversity, Equity, and Inclusion
Introduction to AI for Nonprofits with Tapp Network
Introduction to AI for Nonprofits with Tapp Network
A Survey of Techniques for Maximizing LLM Performance.pptx
A Survey of Techniques for Maximizing LLM Performance.pptx
2 8 density
- 3. Guide to Calculating Density Basic Chemistry Copyright © 2011 Pearson Education, Inc.
- 4. Densities of Common Substances Basic Chemistry Copyright © 2011 Pearson Education, Inc.
- 15. Guide to Using Density Basic Chemistry Copyright © 2011 Pearson Education, Inc.