lesson 4 physical properties of materials and their uses
DESCRIPTION
TRANSCRIPT
![Page 1: Lesson 4 physical properties of materials and their uses](https://reader036.vdocuments.us/reader036/viewer/2022082511/549557c1ac7959342e8b4e19/html5/thumbnails/1.jpg)
Physical properties of materials and their uses
![Page 2: Lesson 4 physical properties of materials and their uses](https://reader036.vdocuments.us/reader036/viewer/2022082511/549557c1ac7959342e8b4e19/html5/thumbnails/2.jpg)
Copper Plastic diamond Aluminium steel
What are the properties of each material?
What are these things used for? How are the uses related to the properties?
![Page 3: Lesson 4 physical properties of materials and their uses](https://reader036.vdocuments.us/reader036/viewer/2022082511/549557c1ac7959342e8b4e19/html5/thumbnails/3.jpg)
Hot water
Carry out an investigation to compare the properties of some of these materials.
Thermal conductivity is easy to compare
![Page 4: Lesson 4 physical properties of materials and their uses](https://reader036.vdocuments.us/reader036/viewer/2022082511/549557c1ac7959342e8b4e19/html5/thumbnails/4.jpg)
Copper plastic diamond aluminium steel
Electrical conductivity
59.6 × 106
Sm-1 Very low Very low 37.8 × 106
Sm-110.4 x 106
Sm-1
Thermal conductivity 400 W/(m K) 0.5 W/(m K) 1800 W/(m K) 237 W/(m K) 80 W/(m K)
Density 8920 kg m-3 920 kg/m3 3500 kg m-3 2700 kg m-3 7874 kg m-3
Source
![Page 5: Lesson 4 physical properties of materials and their uses](https://reader036.vdocuments.us/reader036/viewer/2022082511/549557c1ac7959342e8b4e19/html5/thumbnails/5.jpg)
Name of material
(element, mixture, or compound)
Reason for choice giving material data
Are there any other factors that might
affect the choice of material?
Cable for a ring mains at 230V or higher
Making a drill bit for very hard rock
Material for constructing a plane
Material for making a saucepan
Making a storage container
Making body panels for a car
![Page 6: Lesson 4 physical properties of materials and their uses](https://reader036.vdocuments.us/reader036/viewer/2022082511/549557c1ac7959342e8b4e19/html5/thumbnails/6.jpg)
Plenary:
Look at the answers of your partner or another group.
• Do you agree with their reasons?
• Are there any other possible materials that could be used for that purpose?
• Have they used valid reasons and data to support their answer?
You may wish to make alterations to your own work following this discussion with your peers.