DENSITY Q) Which weighs more:-

Slides:



Advertisements
Similar presentations
Density.
Advertisements

DENSITY GEL2007 Q) Which weighs more:- A kilogram of feathers or a kilogram of iron?
Density Density is a _________ property of matter.
DENSITY KHS 2014 Q) Which weighs more:- A kilogram of feathers or a kilogram of iron?
Density SNC1D. What is Density? Density is a quantitative PHYSICAL property of matter.
Density.
Mass, Weight and Density
How to Calculate Density
Measuring Matter 6 Beta Measuring Matter Which weighs more, a pound of feathers or a pound of sand? Which weighs more, a pound of feathers or a.
DENSITY A summary. Mass Mass is the amount of material in an object. Mass is measured with a balance, usually in grams or kilograms.
Density.
Properties of Matter Chapter 2.
DENSITY Q) Which weighs more:-
DENSITY Q) Which weighs more:-
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!
MATTER 1. The properties of matter.. Air: is it matter? Why does a full air balloon weigh more than an empty balloon?
What is density and how is it measured?
DENSITY GEL2007 Q) Which weighs more:- A kilogram of feathers or a kilogram of iron?
DENSITY Q) Which weighs more:-
Density. Volume The volume of an object is the amount of space it takes up The SI unit of volume is the cubic metre (m 3 ) or cubic centimetre (cm 3 ).
Density All substances have different densities, therefore, you can identify a substance if you know its density The formula to calculate something’s density.
Density Density describes how heavy an object is compared to its size.
Density. Different substances have different densities. The density of a material does not depend on the size or amount of the substance you have. Density.
“The Density Equation” Mass (g) Volume (mL or cm 3 ) Density (g/mL or g/cm 3 )
Measurement Quiz Review. What is the term for the amount of space an object occupies? VOLUME.
Warm Up.095 Km = ____ dm.095 Km = ____ dm 0.50 mg = _____ g 0.50 mg = _____ g 23 L = ______mL 23 L = ______mL 62.5 decameter= _____cm 62.5 decameter= _____cm.
Properties of Matter Mass Volume Density.
Length Length - the distance from end to end of an object
Chapter 1 – Section 2 p Measuring Matter. I. Weight – a measure of the force of gravity A. Changes if you go to the moon or another planet since.
What is Density?. Density is… The ratio of the MASS of a substance to it’s VOLUME.
Mass, Volume and Density
DENSITY. The amount of mass per unit of volume Items with low density: feathers, marshmallows, pillows, etc. Items with high density: rock, most metals,
Volume The amount of space an object takes up. 3 ways to measure volume Liquid Volume –Graduated cylinder mL Volume of a Regular Solid –Length x Width.
DENSITY Q) Which weighs more:- A kilogram of feathers or a kilogram of iron?
PHYSICS – Density. LEARNING OBJECTIVES 1.4 Density Core Recall and use the equation ρ = m/V Describe an experiment to determine the density of a liquid.
DENSITY Depends on: Depends on: Mass Mass Volume Volume D = m/v (g/cm 3 ) D = m/v (g/cm 3 ) Mass usually expressed in grams Volume usually expressed in.
(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.
Which do you think would have the greater volume and mass? Why? 1 kg of feathers1 kg of rock.
Density.
Solids, liquids and gases
DENSITY Q) Which weighs more:-
Lecture on Density
Density SNC1D0.
Mass, Volume & Density.
Density What is density?
Density is mass per unit volume.
Activity #21 DENSITY.
Density Notes.
Do Now Define Mass What units do we use to describe mass?
MATTER VOCABULARY WATCH, READ, LEARN.
Density notes and practice
These two objects are the same volume, so why is one heavier?
DENSITY.
Properties of Matter.
MASS, WEIGHT AND DENSITY
Which do you think would have the greater volume and mass? Why?
A fluid is any form of matter that can flow.
Water has a density of 1g/ml
WALT – Explain how to calculate density
SI units (Le Systeme International d’Unites). SI units (Le Systeme International d’Unites)
Density.
MASS, WEIGHT AND DENSITY
Density.
What weighs more a ton of bricks or a ton of feathers?
Whiteboard Protocol Bell Work: Complete the activities on scientific not., Metric system and Sig Figs. TWL: How to calculate density Classroom Work:
A fluid is any form of matter that can flow.
Particles and Density How does the arrangement of particles effect density ? How is density calculated ?
A closer look at the physical property of Density
Which do you think would have the greater mass? Greater volume? Why?
Presentation transcript:

DENSITY Q) Which weighs more:- A kilogram of feathers or a kilogram of iron? DENSITY Cobb 2018

What is Density Density is the amount of matter in a given space. Or how compact the mass is,in a given volume.

Calculating Density Equation: g or kg m V D Mass Density = https://www.youtube.com/watch?annotation_id=annotation_3417570099&feature=iv&src_vid=zlkpZZW29b0&v=SimFy9wOMXY Volume g/cm3 cm3 or ml D = m V

Which substance has a greater density? Aluminium Steel Brass Lead 27 cm3 27 cm3 27 cm3 27 cm3 471___g 271__g 87___ g 248___ g Lead Density is calculated Mass /Volume

Calculating Density This is showing the work!!!!! Steps Write what you know Write the formula being used Substitute variable into formula: Calculate Check that your units agree: g/cm3? Problem: A lead sinker has a mass of 227 g and a volume of 20 cm3. What is the density of lead? D=? M= 227g V=20 cm3 D = M/V = 227g/20 cm3 = 11.4 g/cm3

Try THIS! D=? M= 103g V=100 cm3 D = M/V = 103g/100 cm3 = 1.03 g/cm3 A glass of milk has a volume of 100 cm3. If the milk has a mass of 103 g, what is the density of milk? D=? M= 103g V=100 cm3 D = M/V = 103g/100 cm3 = 1.03 g/cm3

How is density useful? Density is useful for identifying substance 1. Density stays the same for any size or shape of the same substance. 2. Density is different for different substances.

DENSITY OF A REGULAR SOLID Find the Mass of the solid on a balance. Measure the three lengths and calculate the Volume. (ie V = l x w x h ) Calculate the Density. mass = 240 g 2.0 cm D = m = 240 =10.0 g/cm3 V 24 3.0 cm 4.0 cm

DENSITY OF AN IRREGULAR SOLID m = 360 g  = m = 360 =12.0 g/cm3 V 30 Find the Mass of the solid on a balance. Fill the Measuring Cylinder with Water to a known Volume. Add the Object. Work out the Volume of Water that is displaced. Calculate the Density. 80 cm3 50 cm3

DENSITY OF AN IRREGULAR SOLID Video OR use a “Eureka Can” to find the Volume. Find the mass of the solid on a balance. Add water until just overflowing. Place a Measuring Cylinder under the spout. Add the Object. Collect the Water and read off the Volume. Calculate Density m = 440 g 40.0 cm3  = m = 440 =11.0 g/cm3 V 40

DENSITY OF A LIQUID Find the Mass of an empty Measuring Cylinder. Mass of Liquid = Mass of Measuring Cylinder and Liquid – Mass of the Measuring Cylinder Find the Mass of an empty Measuring Cylinder. Add a certain Volume of Liquid. Find the Mass of the Measuring Cylinder and Liquid Calculate the Mass of Liquid. How? Calculate Density of Liquid. 45.0 g 25.0 g 20.0 cm3 45 – 25 = 20 g  = m = 20 =1.00 g/cm3 V 20

DENSITY OF A GAS Remove the air from a flask of a known Volume, using a vacuum pump. Find its Mass. Add the gas to be tested. Reweigh. The difference is the Mass of gas. Calculate Density. To vacuum flask 150.0 g 170.0 g 1000 cm3 170 -150 = 20.0g  = m = 20 =0.0200 g/cm3 V 1000

Density (brainpop.com) Why do boats float? Watch the following Brain pop video, take notes, take the quiz Density (brainpop.com)

5 facts about Density Write out an explanation to each fact in your notes!!! https://www.youtube.com/watch?v=zlkpZZW29b0