Density. Demos for this lecture 1 kg mass (Is it heavy?) 50 ml of alcohol and 50ml of water in graduated cylinders on a double pan balance.

Slides:

Advertisements

Similar presentations

Density A quantitative physical property of matter A quantitative physical property of matter Which is heavier: a 12 inch bar of gold or a pillow full.

Advertisements

Properties of Matter II

Pg. 82 Floating and Sinking

Density Chapter 1 Matter, Measurements, & Calculations Copyright © 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings.

Density & Graphing Review Sheet Answers

Ask a question: What is happening? Why?. Why do these float?

Density. Demos for this lecture 1 kg mass (Is it heavy?) 50 ml of alcohol and 50ml of water in graduated cylinders on a double pan balance.

A Look at Density and How to Calculate It.

1 1.8 Density Chapter 1Measurements Copyright © 2009 by Pearson Education, Inc.

How to Calculate Density

Density. Which do you think would have the greater mass? Greater volume? Why?  1 kg of feathers  1 kg of rock  Same mass!  Larger volume  Same mass!

Monday Fill out planner WU: Which weighs more, a pound of feathers or a pound of lead. Explain. Update Journal.

Density Density describes how heavy an object is compared to its size.

1 2.8 Density Chapter 2Measurements Copyright © 2008 by Pearson Ed ucation, Inc. Publishing as Benjamin Cummings.

Chemistry: An Introduction to General, Organic, and Biological Chemistry, Eleventh Edition Copyright © 2012 by Pearson Education, Inc. Chapter 1 Chemistry.

Density Formula: Density = Mass ÷ Volume Standard Unit =

 Density is a measure of how much matter (objects that take up space) is compacted in an area.  What is the formula? Density = mass OR mass ÷ volume.

Volume, Mass, and Density Matter is anything that has mass and takes up space. Mass is a measure of how much matter is in an object. Mass can be expressed.

DENSITY D = m/v (g/cm 3 ) Mass usually expressed in grams Volume usually expressed in cm 3 or ml etc.  Density = amount of matter per unit volume.

Measurement Quiz Review. What is the term for the amount of space an object occupies? VOLUME.

Bellwork How is mass and volume related to density?

Demos for this lecture 1 kg mass (Is it heavy?) 50 ml of alcohol and 50ml of water in graduated cylinders on a double pan balance.

Density. The two things we need for density are mass and volume Balance is used to measure mass Balance is used to measure mass Read each rider and add.

What is Density?. Density is… The ratio of the MASS of a substance to it’s VOLUME.

Metric Measurement Review Guide. The unit of measurement for length is_______.  the Meter.

Quiz 9/ g = 1 ___ L = 1 ___ m = 2.35 ___ 4. Find the density of a 2 cm 3 object weighing 1 gram. 5. Describe a procedure to find.

Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the amount of.

General, Organic, and Biological Chemistry Fourth Edition Karen Timberlake 1.10 Density Chapter 1 Chemistry and Measurements © 2013 Pearson Education,

Floating and Sinking Whatever floats your boat!. Warm-up 1. Observe the two beakers on the front table and record your observations. 2. Predict- will.

Aim: What is Density? Do Now: 1)In your notebooks, describe how to find the density of an object (formula) and explain why cutting an object doesn’t change.

DENSITY Density = MASS Volume. MASS –How heavy an object is. –Quantity of matter observed in an object. –Measured in kg, g, or mg –WE FEEL MASS (Atoms).

Bellwork What does it mean when someone says so-and-so “is dense”

Density is Rice University – All Rights Reserved© 2011 Equal Volume The amount of matter in a given space or volume, a relationship between mass and volume.

Density B Thursday 11/5/15 C, D, E Friday 11/6/15.

Back to Basics. CUBESVolume is a measurement of the number of CUBES which fit IN a three-dimensional object.

Density Sink or float?. What is Density? Defined as the amount of matter (mass) within a certain amount of space (volume) Represented by the following.

How close the atoms or molecules are to each other NOT really “heaviness” - density includes how much space an object takes up!! All matter has density.

Density. What would take up more space. A kilogram of feathers…

Density DensityDensity is how much mass something has in a certain volume 100kg 200kg Which block has more matter in it? The blue block must have a higher.

Tueday 9/27 Day 1 2- Fill out your Agenda. Science Starter-

Density Density is one of the most important measurements in science. It is also a very simple calculation that involves measurements of mass and volume.

DENSITY And BUOYANCY.

Density PG. 17.

DENSITY Density is defined as mass per unit volume. It is a measure of how tightly packed and how heavy the molecules are in an object. Density is the.

Sink Float Suspend Challenge

Density What is density?

Density- notes page 21 Essential Question: How do we explain density?

Chapter 1 Measurements 1.8 Density.

Chapter 2 Measurements 2.8 Density

What does it mean when someone says so-and-so “is dense”

A physical property of matter

Chapter 1 Measurements 1.7 Density

Properties of Matter.

Density and Units.

Measuring Notes ｷThe units used for mass are grams (g).

Chapter 1 Measurements 1.7 Density

Safety and Density.

MEASURING MATTER.

What’s the MATTER!?!.

Aim: How can I calculate density of an irregular object

Whatever floats your boat!

Wednesday, 10/19 Day 2 Fill out your Agenda. Science Starter:

A closer look at the physical property of Density

When you finish your quiz, Read pages 49-53, Section 2

Presentation transcript:

Density

Demos for this lecture 1 kg mass (Is it heavy?) 50 ml of alcohol and 50ml of water in graduated cylinders on a double pan balance.

Archimedes

Archimedes and the Golden Crown

Density Density is how compact matter is. More mass shoved into a certain amount of space makes something more dense.

Density Considers Two Things How much mass is present. How much volume does it take up. Make sure to consider both these factors when discussing density.

A A

A A 1.What does Figure A illustrate about the density of the two metals? Explain.

A A 2. What does Figure B illustrate about the density of the two metals? Explain.

A A 3. If the cube of aluminum in figure B were cut into four equal parts. How would the density of one part compare to the whole cube ?

A A 4. Metals expand when heated. If the gold cube in part B is heated, what will happen to its density?

Does it Float? If something floats or rises it is less dense than the material it is floating/rising in. Objects of greater density will sink.

Density Density is the mass per unit volume. –How much mass there is in a certain amount of space.

Density Density is the mass per unit volume. Density = Mass ÷ Volume

Density Density is the mass per unit volume. D = Mass ÷ Volume ÷

Solving For Variables

Common Volume Units

Illegal ivory is often detected on the basis of density. What is the density of the elephant tusk? Mass = 2680g Volume = 1450cm 3

Illegal ivory is often detected on the basis of density. What is the density of the elephant tusk? Mass = 2680g Volume = 1450cm 3 D = M ÷ V = 2680g ÷ 1450cm 3 = g/cm 3 = 1.85g/cm 3

Calcium chloride is used as a deicer on roads in winter. Its density is 2.50g/cm 3. What mass of calcium chloride will the truck hold if its volume is 4560L?

4560L = 4,560,000cm 3

Calcium chloride is used as a deicer on roads in winter. Its density is 2.50g/cm 3. What mass of calcium chloride will the truck hold if its volume is 4560L? 4560L = 4,560,000cm 3 M = D x V = 2.50g/cm 3 x 4,560,000cm 3 = 11,400,000g

The density of methanol is 0.788g/cm 3. What is the minimum volume of a tank that can hold 795kg of methanol.

795kg = 795,000g

The density of methanol is 0.788g/cm 3. What is the minimum volume of a tank that can hold 795kg of methanol. 795kg = 795,000g V = M ÷ D = 795,000g ÷ 0.788g/cm 3 = 1,008,883cm 3 = 1,010,000cm 3 How many liters is this?

The density of methanol is 0.788g/cm 3. What is the minimum volume of a tank that can hold 795kg of methanol. 1,010,000cm 3 ÷ 1000 cm 3 /L = 1010L

Homework Worksheet: Chapter 2-3 Study Guide Chapters 1 & 2 due Monday