conduction and insulation. conduction the movement of heat, electricity, or sound from one object to...
DESCRIPTION
Conductors of Heat Conductors of heat allow heat energy to pass through them easily. Examples of Conductors of heat: Iron Copper AluminumTRANSCRIPT
Conduction and Insulation
ConductionThe movement of heat, electricity, or sound
from one object to another object
Conductors of HeatConductors of heat allow heat energy to pass
through them easily.
Examples of Conductors of heat:• Iron• Copper• Aluminum
The reason why pots and pans are usually made of metal is so the heat from the stove will pass through the metal and cook whatever is inside. Metal is a good conductor of heat.
Conduction of Heat
• http://www.youtube.com/watch?v=77R4arwD8G8
InsulationNot allowing heat, electricity, or sound to pass
through easily
Insulators of HeatInsulators of heat are poor conductors and do
not allow heat to pass through them
Examples of Insulators of heat:• Wood• Plastic• Cloth• Feathers
Most cooking utensils are metal but have plastic grips to insulate the heat from traveling to your hands.
Winter clothes are often made of warm cloth of feathers to insulate you.
Conductors of ElectricityMaterials that allow electricity to move through
them easily.Examples of conductors of electricity:• Copper • Water
Most electrical wires are made of copper because it is a good conductor.
Insulators of ElectricityInsulators of electricity do not allow electricity
to pass through easily.
Examples of insulators of electricity:• Rubber • Plastic
Most electrical wires are covered with plastic or rubber to prevent electrical shock.
Questions
What is conduction?
Allowing heat, electricity, or sound to pass through easily.
What is insulation?
Not allowing heat, electricity, or sound to pass through easily.
How are conductors and insulators different?
• Their functions•Conductors are made of
iron, copper, and other metals• Insulators are made of
rubber, plastic, and cloth
What would we use conductors for?
•Cooking• Light• Sound• Electricity
What would we use insulators for?
•Keeping safe from electrical shock• Staying warm•Keeping drinks cold in a
cooler