Why temperature of hand increases when we rub it against each other?

Q: Chocolate candy in your hand will eventually melt as the heat from your body is released and makes…

A: Answer Chocolate candy in your hand will eventually melt as the heat from your body is released and…

Q: Two shirts are warmer than a single shirt of double thickness . Why?

A: Insulators are the material which is a bad conductor of heat. Air layers behave as a good insulator.

Q: Pieces of glass and copper are heated to the same temperature. Why does the piece of copper feel…

A: When pieces of glass and copper are heated to the same temperature , piece of copper feel hotter on…

Q: Chocolate candy in your hand will eventually melt as the heat from your body is released and makes…

A: This phenomenon is due to Conduction of heat. For detailed explanation see next step.

Q: Pieces of copper and glass are heated to a same temperature . Why does the piece of iron feel hotter…

A: Copper is a very good conductor of heat. So, it allows maximum amount of heat to pass through it…

Q: An ice cube feels cold in your hand because... a it's adding cold energy to your hand b because it's…

A: Whenever a body gives energy to us , we feel hot and whenever a body takes energy from us we feel…

Q: Using own words, discuss latent heat.

A: The amount of heat required to change the phase of a substance at constant temperature per unit mass…

Q: Make up a multiple-choice question that would test a classmate’s understanding of the distinction…

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Q: Why do woolen blankets keep us warm better than cotton sheets?

A: In the woolen blanket, there are more gaps. So, more air are confined within woolen blanket. Air is…

Q: Why does an iron ball seem to have a lower temperature than a wooden ball despite having the same…

A: iron ball seem to have a lower temperature than a wooden ball despite having the same temperature

Q: Heat from an oven causes the whole kitchen to get warmer.

A: Radiant energy refers to energy that travels by electromagnetic radiation such as heat or x-rays.…

Q: At what common temperature would a block of wood and a block of metal feel equally cold or equally…

A: for any object feel equal cold or equal hot when it is touched since the temperature of any object…

Q: When can you withdraw heat from object without lowering its temperature?

A: Change of phase occurs when the system undergoes transition between phases like solid, liquid, and…

Q: When can you add heat to object without raising its temperature?

A: When two phases co-exists in a system, any heat added or removed from the system will result in…

Q: Explain why a firewalker can step quickly without harm on red-hot coals with bare feet.

A: A firewalker can step quickly on red-hot coals with bare feet as wood is a very good insulator.

Q: Will the thermal contact resistance be greater for smooth or rough plain surfaces?

A: The thermal contact resistance depends on the surface roughness.

Q: If you drop a piece of ice on a hard surface, the energy of impact will melt some of the ice. The…

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Q: Turn a common incandescent lamp on and off quickly while holding your hand a few inches from the…

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Q: Hot sand cools off faster at night than plants and vegetation. Then, the specific heat capacity of…

A: Given Hot sand cools off faster at night than plants and vegetation. We have choose the correct…

Q: A spring is made of steel and not of copper. Why?

A: A good spring should have high restoring capacity and elasticity properties and both these…

Q: Consider a person sitting nude sun is absorbed by the person a the individual's skin temperatu…

A: Given:- On a sunny day, The visible radiation energy from the sun is absorbed by the person at a…

Q: At what common temperature will a block of wood and a block of metal feel neither hot nor cold to…

A: The heat tranter will occur only when the temperature of the object and the surroundings are…

Q: Explain why high quality thermos bottles have a vacuum lining as a major component of their…

A: The transfer of the heat from any substance takes place in three ways, 1. Conduction, 2. Convection…

Q: The form of energy that produces a feeling of hotnes called as

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Q: Why are materials such as glass and and rubber good insulators?

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Q: What condition is necessary for two bodies that are in physical contact with each other to be in…

A: Two bodies are in physical contact to each other

Q: Can two objects be in thermal equilibrium if they are not touching ?

A: Zeroth law of thermodynamics If two objects A and B are in thermal equilibrium with another object…

Q: A new quilt is warmer than old one. Why?

A: The working process of quilt is to keep warm the body. Quilt act like a insulator it keep the air…

Q: What is Conduction in physics ?

A: Conduction is the transfer of thermal energy or electric charge through a material through direct…

Q: Inside a room at a uniform comfortable temperature, metallic objects generally feel cooler to the…

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Q: At what common temperature will a block of wood and a block of metal both feel neither hot nor cold…

A: When the temperatures of the block of wood or a block of metal are the same as the temperature of…

Q: An iron nail becomes hot when it is hammered, Why?

A: Whenever there is an increase in temperature of an object, it is due to the increase in the object’s…

Q: When removing the objects from the oven, you accidentally touch each one with your hand. Rank these…

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Q: How does a fan help us feel cooler in the summer?

A: Given fan help us feel cooler in the summer we have to find the cause of the above mentioned…

Q: Consider a 6.0-g steel nail 8.0 cm long and a hammer that exerts an average force of 600 N on the…

A: Given:  mass,m = 6 g = 0.006 kg  Force,F = 600 N  distance, d = 8 cm = 0.08 m  specific heat,  c =…

Q: Which of the following is the best insulator? Glass, copper, meat, iron, or water

A: