Physics · Science General

Heat Transfer Mechanisms

828 Questions

Heat Transfer Mechanisms deal with the movement of thermal energy through conduction, convection, and radiation. It involves practical applications like ocean heat storage and atmospheric heating. These fundamental physics concepts are frequently asked in general science sections.

Thermal conductionHeat convectionThermal radiationSpecific heatStates of matter

Heat Transfer Mechanisms Questions

Multiple choice physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

Define insulator of heat.

  1. Substances through which heat can pass easily are called insulators of heat.

  2. Substances through which heat cannot pass easily are called insulators of heat.

  3. Substance which can easily freeze are called insulators of heat.

  4. Substances which cannot freeze easily are called insulators of heat.
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Insulators are  through which heat cannot pass easily.

Multiple choice physics transfer of heat heat and heat transfer heat energy transfer heat energy transfers fundamentals of heat transfer conduction

Mud houses are cooler in summer and warmer in winter because

  1. mud is a good conductor of heat

  2. mud is a superconductor of heat

  3. mud is a bad conductor of heat

  4. none of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Mud is a bad conductor of heat. It does not allow the heat to transfer from house to atmosphere in winter and atmosphere to house in summer.

Multiple choice chemistry matter around us measurement of properties effect of temperature and pressure on states of matter general introduction: importance and scope of chemistry

The amount of heat energy released when a fuel burns completely is called calorific value.

  1. True

  2. False

  3. Nither

  4. Either
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
$\text{Calorific value= heat released per kg of fule}$

$\text{The amount of heat energy released when a one kilogram of fuel burns completely is called calorific value.}$