DENSITY AND BUOYANCY OBJECTIVE: to learn how to predict whether an object will float or sink.

Slides:

Advertisements

Similar presentations

Introduction to Density  Density is the measurement of the mass of an object per unit volume of that object. d = m / V  Density is usually measured in.

Advertisements

Which has more mass? A) 1 kilogram of feathers B) 1 kilogram of bricks

Measuring Volume & Density By: Brianna Shields September 14, 2005.

Chapter 11 – Forces in Fluids

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

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.

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

Density & Graphing Review Sheet Answers

Density. What is It? Derived unit which shows the mass per unit of volume More dense materials are “heavier” than less dense materials Density compares.

Objective: To calculate density.. - Volume of a cube or block = length x width x height - Volume of irregular shaped object = use water displacement.

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

 If I have a rock with a mass of 85g and a density of 3.1g/mL, what would the volume be?  27.4 mL.

A Look at Density and How to Calculate It

Properties of Matter Chapter Four: Density and Buoyancy

Foundations of Physical Science Workshop: Density of Fluids.

Density A lesson on integrity and science. Density is…. A periodic property How did Mendeleev know there was a missing element? He calculated the densities.

“The Density Equation” Mass (g) Volume (mL or cm 3 ) Density (g/mL or g/cm 3 )

Floating and Sinking.  Density is a measure of how closely packed the atoms in a substance are  Density is a physical property  All matter has measurable.

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,

WHAT IS DENSITY One of the most important physical properties of a substance is its density, or what is mass per unit volume. The property of density may.

WU 9/7 1.How many sig. figs are in these measurements? a) g b L c mg d e s 2.Perform the following calculations:

The Density Column. Using Density to Predict Position If we put a solid into a liquid, and the solid is more dense than the liquid it will If the liquid.

Archimedes’ Principle

Introduction to Density  Density is the measurement of the mass of an object per unit volume of that object. d = m / V  Density is usually measured in.

Density. Matter: anything that has mass and takes up space –Mass – the amount of matter in something –Volume – the amount of space something occupies.

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.

 A. Matter 1.Definition: anything that has mass and volume. 2. Characteristic properties (such as density, melting point, boiling point) can be used.

Matter Chapter Twelve: The Physical Properties of Matter 12.1 Density 12.2 Buoyancy 12.3 Properties of Materials.

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

The Density Column. Question… If the lead weight is dropped into the beaker of water… will it sink or float? d= 11.4 g/ml What will happen if it is dropped.

Density Notes. What is density? Density – mass per unit volume What does per mean? – Examples that use per: miles per hour meters per second $ per pound.

19/04/2010 (Day 3) WELCOME

Lab 2 Density of a Solid and Liquid Objective - Measure the density of aluminum and water.

Density Section 2.3. High population density (large population per square mile) Low population density (small population per square mile)

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

Calculating Density Worksheet Review.  1. How close the particles are in a substance. Or how much mass fits in a certain space.  2. Density is “owned”

What is Density? Objects with the same volume but different mass have different densities. Density is a characteristic property of a substance. The density.

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

Density. Which weighs more? Which one of these weighs more??? A kg of bricks or a kg of feathers? Both of the objects are 1 kg… so they both weight the.

4/3 TAKS Review today Remember Project due tomorrow Please pick up both sheets at side.

Density Section 2.1 Measurement of how packed or crowed object is Ratio of mass to volume.

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.

CST Review Session 6 Density Floating and Sinking Bouyancy.

Bell work What does density tell you about an object?

Floating and Sinking.

Chapter 1 Measurements 1.7 Density

Activity #21 DENSITY.

Chapter 1 Measurements 1.8 Density.

Physical versus Chemical Properties

Density Power Point By SUHSD Science Resource Personnel.

POM - 3 Predicting Density

Unit 2 Floating and Sinking.

INTRODUCTION TO DENSITY

Determining if an object will float or sink

Floating and Sinking.

Safety and Density.

3.1 Building a Density Column

Method 2: Irregularly-shaped Object

Student Planner March 21 Place this in the proper place

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

What amount of heat is required to increase the temperature of 75

A closer look at the physical property of Density

Comparing Densities of Different Solids

Density Continued.

Presentation transcript:

DENSITY AND BUOYANCY OBJECTIVE: to learn how to predict whether an object will float or sink.

FLOAT OR SINK? Why do some objects float and others sink? The answer lies in the density of the objects and the density of the fluids they are placed in. Density is the mass of a substance in one unit of volume. D = M/V.

VIRTUAL LAB We will determine the density in g/ml of four solids and four liquids. We will then make predictions about whether the solids will float in the liquids.

OUTPUT FOR SOLIDS Mass Volume Density Plastic Ice Aluminum Pinewood

OUTPUT FOR LIQUIDS Mass Volume Density Ethanol Water Olive Oil Mercury

CONCLUSIONS 1.Which of the solids will float in the olive oil? Explain. Test this in the virtual lab. 2.Which of the solids will sink in mercury? Explain. Test this in the virtual lab. 3.What would happen if olive oil and water were poured together? Test this in the virtual lab. 4.What would happen if all four solids and all four liquids were mixed in the same cylinder at the same time?