Choose the BEST answer to the following: Heat is simply another word for (a) temperature. (b) internal energy. (c) internal energy that flows from hot to cold. (d) radiant energy.

Q: What are the benefits of the high specific heat of water?

A: Specific heat is defined as the amount of heat needed to increase the temperature of unit mass of a…

Q: Woollen clothes are poor conductor of heat but they keeps us warm. Give reason

A: Woolen clothes are thin and there is no much air gap between the fabric. The air pockets lying in…

Q: Which contains more heat, a coffee cup of boiling water or a bathtub with water at room temperature?

A: An average size bathtub contains 250 kg of water and an average size cup contains 0.25 kg of water.…

Q: Which of the following is NOT unit of heat? O calorie O Btu sanor O none of these Joules

A: The SI unit of energy is Joule.  The other units are calorie and Btu.  1 calorie = 4.18 J  1 Btu =…

Q: What is meant by the terms of thermal expansion and thermal conductivity?

A: Thermal conductivity:

Q: What will happen if an object experiences an increase in temperature? A decrease in temperature?

A: Step1 - Understanding the Concept of kinetic theory.              According to kinetic theory, the…

Q: When you open the door to an air conditioned room in the summer are you letting cold air out or hot…

A: When the door to an air conditioned room in the summer is opened.   And we need to tell whether we…

Q: In which direction does internal energy flow between hot and cold objects?

A: Internal energy is describe as the energy associated with the random, disordered motion of…

Q: What is a thermal energy reservoir? Give some examples.

A: Thermal energy reservoirs are those reservoir of heat from where heat can be taken or given to them.…

Q: How does specific heat relate to how fast a substance changes temperature?

A: The heat loss, ∆H, from a substance of mass m and specific heat s, is related to the change in…

Q: What heats faster, land or water?

A:

Q: Why does the high specific heat of water have to do with convection currents in the air at the…

A: Water has a high specific heat capacity (of 4200 J/Kg°C) on the seashore and the land has a much…

Q: In the last chapter, free convection was explained as the result of buoyant forces on hot fluids.…

A:

Q: Adding the same amount of heat to two different objects does not necessarily produce the same…

A:

Q: What does it mean to say that two systems are in thermal equilibrium?

A: What does it mean to say that two systems are in thermal equilibrium?

Q: In what forms is thermal insulation available?

A: Thermal insulation is the process of reducing heat from the surroundings. It can be done using many…

Q: Boiling water, uncovered, on a stove is an example of what method of heat transfer?

A:

Q: What are the application of heat and work in thermodymics in daily life?

A: We have to mention the application of heat and work in thermodynamics in daily life.

Q: How does the frequency of radiant energy relate to the absolute temperature of the radiating source?

A: The frequency of the radiant energy is directly proportional to the absolute temperature of the…

Q: This is rooted in qualitative ideas of "hot" and "cold"

A: As we know that temperature is defined as the degree of hotness and coldness of a body.So we can say…

Q: is the type of thermal energy transfer that causes a camp fire to warm us. O a. convection O b.…

A: Emission of energy in waves or rays refers as radiation.

Q: Name the method of heat transfer which doesnot depend on gravity.

A: In radiation, heat is transferred without any motion of the medium particles

Q: - Define and distinguish among the following terms: thermal energy, heat, and temperature.

A:

Q: Why heat is called the disordered energy?

A: As the heat energy of a system increases, its entropy will increase. Entropy is a measure of…

Q: How does energy flow when objects are heated? When they are cooled?

A: Matter in any state is made up of atoms which are in continuous motion, even when the matter is in…

Q: What type of heat transfer helps the balloon rise?

A: To determine the mode of heat transfer that helps the balloon to rise.

Q: MAKING CONNEC TIONS 13. When you apply heat energy to a substance, where does the energy go? Think…

A: Conservation of energy says energy is neither be created nor can be destroyed, it just changes it’s…

Q: A ½ kg ball dropped from a height of 2 m rebounds to only 1.2 m after hitting the ground. The amount…

A: Find the amount of energy converted to heat. ∆E=mg∆h=mgh2-h1

Q: How are heat and temperature different?

A:

Q: How does the science of heat transfer differ from the science of thermo dynamics?

A: The thermodynamics is the framework of science which deals with the system’s energy interaction…

Q: What is internal energy?

A:

Q: In what ways are Heat and Temperature different? How are they related?

A: Heat is a form of energy. Temperature is the physical quantity which gives the degree of hotness of…

Q: What are the conditions of thermal equilibrium ?

A: Thermal equilibrium-is the state at which two bodies in contact can exchange energy freely. Systems…

Q: What determines whether an object is a net absorber or net emitter of radiant energy at given time?

A: All substance above absolute temperature emit radiant energy. Whether the object emits more than it…

Q: Distinguish between a calorie and a joule?

A: Both calorie and joule are the units of energy. The main difference in both the units is that a…