sandeepashu sandeepashu

Lecture 2: Sea Breeze & Land Breeze; Heat Trasnfer : An idea of conduction, convection and radiation ; Clothing for winters and summers

  • Heat Assignments 1

     

    Stainless steel pans are usually provided with copper bottoms. The reason for this could be that

    (a) copper bottom makes the pan more durable.

    (b) such pans appear colourful.

    (c) copper is a better conductor of heat than the stainless steel.

    (d) copper is easier to clean than the stainless steel.

    Uploaded bysandeepsandeep         View Answer

  • Heat Assignments 2

     

    A wooden spoon is dipped in a cup of ice cream. Its other end

    (a) becomes cold by the process of conduction.

    (b) becomes cold by the process of convection.

    (c) becomes cold by the process of radiation.

    (d) does not become cold.

    Uploaded bysandeepsandeep         View Answer

  • Heat Assignments 3

     

    An iron ball at 40°C is dropped in a mug containing water at 40°C.

    The heat will

    (a) flow from iron ball to water.

    (b) not flow from iron ball to water or from water to iron ball.

    (c) flow from water to iron ball.

    (d) increase the temperature of both.

    Uploaded bysandeepsandeep         View Answer

  • Heat Assignments 4

     

    One litre of water at 30°C is mixed with one litre of water at 50°C. The temperature of the mixture will be

    (a) 80°C (b) more than 50°C but less than 80°C

    (c) 20°C (d) between 30°C and 50°C

    Uploaded bysandeepsandeep         View Answer

  • Heat Assignments 5

     

    Look at Figure. Mark where the heat is being transferred by conduction, by convection and by radiation.

    Uploaded bysandeepsandeep         View Answer

  • Heat Assignments 6

     Discuss why wearing more layers of clothing during winter

    Uploaded bysandeepsandeep         View Answer

  • Heat Assignments 7

     

    Give two examples each of conductors and insulators of heat.

    Uploaded bysandeepsandeep         View Answer

  • Heat Assignments 8

     State similarities and differences between the laboratory thermometer and the clinical thermometer.

    Uploaded bysandeepsandeep         View Answer

    • Description:-

    Lecture 2:
    Today, we will discuss the next four topics, i.e;  Sea Breeze & Land Breeze; Heat Trasnfer : An idea of conduction, convection and radiation ; Clothing for winters and summers of Chapter 4 Heat.
    OBJECTIVES:
    1:How heat is transferred from one object to other ?  
    2:Clothing according to the season.
    Important Tip:
     This lecture about Heat is base for the further chapters. These topics help in many ways as to understand the and how we can use them.  It help you in further studies also.
    Please go through the topic, their notes. Properly do the assignments, watch videos of the concerned topics. If you any doubt about any topic/point please submit it in the discussion section... it will be answered as soon as possible.
    After all of this... when you fell confident about the particular topic/chapter then take the quiz.

    x
    Login/Registration