very short questions
1. What do you mean by convection of heat?
2. What are convectional currents?
3. What is temperature?
4. What are insulators of heat?
5. What are the common scales in which temperature are usually measured?
Answers
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Answer:
1.Heat convection is a mode of heat transfer by the mass motion of a fluid such as air. Heat convection occurs to the surface of an object where the surrounding fluid of object is heated and moved energy away from the source of heat.
2.A convection current is a process that involves the movement of energy from one place to another. It is also called convection heat transfer. ... The convection currents tend to move a fluid or gas particles from one place to another.
3.Temperature is a physical quantity that expresses hot and cold.
4.Any material that keeps energy such as electricity, heat, or cold from easily transferring through is an insulator. Wood, plastic, rubber, and glass are good insulators
5.The two most common temperature scales are the Fahrenheit and Celsius (Centigrade) scales. Two other scales, the Rankin and Kelvin are known as the absolute scales because at their zero points all molecular activity ceases. This point is known as absolute zero