Fluids and Density Ch 7.2.

Slides:

Advertisements

Similar presentations

Everyone Ever Tell You are Dense? Well, you all are… Well, you all are… Because you all have these two properties You are made up of MATTER…which means.

Advertisements

Chemistry Notes Density. density – the mass of an object per unit volume ex) the density of a substance describes how tightly packed the molecules are.

A Look at Density and How to Calculate It.

(c) McGraw Hill Ryerson States of Matter Matter is anything that has mass and volume. Mass is the quantity of matter a substance or object contains.

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

Which do you think would have the greater mass and greater volume? Why? 1 kg of rock 1 kg of feathers.

DENSITY. Density is the measure of mass per unit volume of substance. So, density is a measure of the amount of matter (particles) in a given volume (space)

7.2 Fluids and Density 1)A fluid is any form of matter that can flow. a)Liquids and gases are fluids since they do not have a fixed shape. b)Solids are.

Section 10.1 Learning Goals

SCIENCE SKILLS. 2.2 Density  Density describes how much mass is in a given volume of a material.

Density Stuff. Units Mass is measured in grams or g. Volume is measured in milliliters (ml) for liquids, and cubic centimeters (cm 3 ) for solids. So,

Properties of Matter Mass Volume Density.

2.2 Density Density describes how much mass is in a given volume of a material.

Density DEF: amount of mass in a certain volume. Density is a physical property. Solids have the highest density. Gases have the lowest density. The density.

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

Introduction to Matter Lecture: Calculating Density.

The Plan… 16 May 2013 Review Homework from last few days…  7.1 Worksheet  CYU P 259 # 1-7  Reading Check questions from 249/251/253 NEW Section!!! 

Density can be used to help identify different types of matter.

Density DEF: amount of mass in a certain volume. Density is a physical property. Solids have the highest density. Gases have the lowest density. The density.

+ Fluids and Viscosity Chapter 8 Density Describes the amount of mass in a given volume of a substance. Intro Video.

Density How close together the molecules of an object are. How Dense the molecules are. “Dense forest” = thick, hard to see through.

UNIT 3 Chapter – Fluids and Density. Objectives By the end of the lesson you should be able to: Define density Relate density to the 3 states of.

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.

UNIT THREE: Matter, Energy, and Earth  Chapter 8 Matter and Temperature  Chapter 9 Heat  Chapter 10 Properties of Matter  Chapter 11 Earth’s Atmosphere.

(c) McGraw Hill Ryerson Fluids and Density A fluid is any form of matter that can flow.  Liquids and gases are fluids since they do not have.

Density and Temperature

Density Most Dense Less Dense Least Dense.

DENSITY Mark Place,

DENSITY And BUOYANCY.

Chapter 1 Measurements 1.7 Density

Density PG. 17.

Unit 1 Mix and Flow of Matter

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.

Introduction to Matter

Density What is density?

Activity #21 DENSITY.

2. Density ________ as temperature increases.

SCIENCE SKILLS.

Do now (5 minutes): (take the notes!!!)

WARM UP (for NOTES) 1. Which is more dense, water or wood?

Will it Float or Sink? Density.

Grade 8 Science unit 3: fluids & viscosity

Determining if an object will float or sink

Chapter 8 Density

Chapter 10 Density

A fluid is any form of matter that can flow.

Aim: How is an objects density determined?

Cornell Notes 4.1 Density December 21, 2011 Pages 115 and 117.

Section 10.1 Learning Goals

Determining Density Chapter 2 Section 2 pp

Chapter 8 Density

MEASURING MATTER.

A Look at Density and How to Calculate It

Chapter 10 Density.

Chapter 7.2 Fluids and Density.

What weighs more a ton of bricks or a ton of feathers?

3.2 Density of Fluids.

A fluid is any form of matter that can flow.

A closer look at the physical property of Density

Presentation transcript:

Fluids and Density Ch 7.2

What is a fluid? A fluid is any form of matter that can FLOW Examples: Lava, water, syrup, gases... Fluids include liquid and gases but NOT solids

Density of Fluids & Solids What do we mean when we say the traffic was dense? Or the trees in the forest are dense? Density = the mass of a given volume How closely packed together particles are in a material

Float or Sink??? Objects that are less dense will float Denser objects sink! Most substances are denser in their solid form than their liquid form. Exception: water (ice is less dense! So ice floats...)

The Density of ICE Since solid water (ice) is less dense, it floats on liquid water. This is why glaciers don’t sink! It also allows fish and other life in lakes to stay alive in cold winters....

Calculating Density To calculate density we use the formula: D = mass (g) volume (mL) = m V

Volume Volume is measured in millilitres (mL) 1 mL = 1 cm3 (cubic centimeters) LIQUIDS -> Use mL SOLIDS -> Use cm3

We could measure your volume this way too... Displacement Sometimes we have to find the volume of oddly shaped objects.... We can use displacement (putting the objects in water and measuring the change in volume) We could measure your volume this way too...

Practice problems Turn to page 265 and the Practice Problems #1-3 What is the density of a 2 cm3 sugar cube that has a mass of 3.18g? A 3mL sample of oil has a mass of 2.64 g. What is the density of the oil? The mass of 1 cm3 of lead is 11.34g. The mass of 1 cm3 of iron is 7.87 g. Which solid has greater density?

Answers 1. 1.59g/cm3 2. .88g/ml 3. lead