Class 8 Physics Heat Transfer Quiz

Conduction = Transfer of heat through a material without any flow of the material itself Convection = Transfer of heat through the movement of a fluid or gas Radiation = Transfer of heat through electromagnetic waves Insulation = Material used to reduce the transfer of heat

Conduction = Heating a metal rod at one end and feeling the other end become warm Convection = Feeling the warmth of a campfire from a distance Radiation = Feeling the warmth of the sun on a sunny day Insulation = Using a thermos to keep a drink hot or cold for a long time

Specific heat capacity is the amount of heat energy required to raise the temperature of 1 kg of a substance by 1 degree Celsius. It determines how effectively a substance can store heat.

<p>Temperature = Degrees Celsius (°C) or Kelvin (K) Heat Energy = Joules (J) Specific Heat Capacity = Joules per kilogram per degree Celsius (J/kg°C) Latent Heat = Joules (J)</p> Signup and view all the answers

<p>Conduction is the transfer of heat through direct contact, convection is the transfer of heat through the movement of fluids, and radiation is the transfer of heat through electromagnetic waves.</p> Signup and view all the answers

<p>The greenhouse effect is the trapping of heat in the Earth's atmosphere by certain gases, such as carbon dioxide and methane, leading to an increase in global temperatures. The potential consequences include rising sea levels, extreme weather events, and disruption of ecosystems.</p> Signup and view all the answers