Conductive and Convective Heating Definitions
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Questions and Answers

What is the process by which heat is transferred from a hot object to another one with less heat by contact?

  • Specific heat
  • Conductive heating (correct)
  • Convective heating
  • Thermal conductivity

What does specific heat refer to?

  • The transfer of heat energy by means of convection current
  • The quantity of heat required to raise the temperature of a substance (correct)
  • The automating heating unit which holds low melting point wax
  • The ability of a given material to conduct/transfer heat

What is the unit of specific heat usually expressed in?

  • Liters per gram per Celsius degree
  • Calories or joules per gram per Celsius degree (correct)
  • Meters per second per gram per Celsius degree
  • Kilograms per joule per gram

What does thermal conductivity refer to?

<p>The ability of a given material to conduct/transfer heat (D)</p> Signup and view all the answers

What is a hydrocollator used for?

<p>Automatic heating unit which holds steam packs heated in water at a constant temperature ready for use (A)</p> Signup and view all the answers

What does heat exchange by conduction refer to?

<p>Transfer of heat on molecular level affected by the transfer of kinetic energy during the collision of molecules (B)</p> Signup and view all the answers

What is the main factor that governs the speed at which heat will flow and cause a rise in temperature?

<p>Thermal conductivity of the source and substance (B)</p> Signup and view all the answers

Which type of tissue conducts heat faster based on its water content?

<p>Tissue with higher water content (B)</p> Signup and view all the answers

What is the specific heat of fat?

<p>0.6 (C)</p> Signup and view all the answers

Which of the following is a source of conductive heating?

<p>Paraffin wax baths (C)</p> Signup and view all the answers

What is the main function of a hydrocollator pack?

<p>To produce a uniform and constant temperature to heat steam packs (D)</p> Signup and view all the answers

What property does the fabric envelope of a hydrocollator pack contain?

<p>Silica gel which absorbs water and gives moist heat when heated (C)</p> Signup and view all the answers

How long do hydrocollator packs provide moist heat for?

<p>30-40 minutes (A)</p> Signup and view all the answers

What is the purpose of using hot moist packs?

<p>To give gentle moist heat for pain relief and relaxing spasmed muscles (B)</p> Signup and view all the answers

What is the weight range that the part selected to be treated must be able to tolerate when using hot moist packs?

<p>500-800 grams (A)</p> Signup and view all the answers

How long can a hydrocollator pack retain its heat for?

<p>30 minutes (D)</p> Signup and view all the answers

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