Easy
Stainless steel is a ________ conductor of heat
good
True or False
Conductors don't allow heat to come inside
False
Explain Gunny bags.
labs of ice that are covered with gunny bags. The material used for making gunny bags is a bad conductor of heat and does not allow the heat flow from outside to enter inside
What is the si unit of heat?
Kelvin[K]
Pressure cookers are provided with _____________ handles.
Bakelite
Cooking utensils are usually made of ____________
Stainless steal
What is heat?
Heat is a form of energy that causes the sensation od hotness or coldness.
Uses of bad conductors[Catagorie name]
1. Insulating handles
2. False ceilings
3. Woolen garments
4. Igloos
5. Double wall
6.Gunny bags
Two thin woolen blankets are warmer than a thick woolen blanket.Why
Two thin woolen blankets are warmer than a thick woolen blanket because there is an extra layer of air trapped between thin blankets which act as an insulator and does not allow the body heat to flow out.
Is water an insulator or a conductor?
Conductor
What are insulators give examples.
Those materials which do not allow heat to pass through them easily are called insulators.
Examples of insulators include plastic and wood.
Why do birds fluff out their feathers on a cold winter morning
A bird's body heat warms the air between its feathers,” Marra explains. “So birds fluff up in the cold to trap as much air in their feathers as possible.
What is the name of our lesson?
"Heat and it effects"
Is diamond a poor conductor of heat?
Diamond is a good conductor of heat but a bad conductor of electricity.
Say any three use bad conductors.
False ceiling-keep us warm in winter how?
Gunny bags-To keep ice cold how?
Igloos-double wall and keeps us warm?