Heat Transfers Flashcards
What is conduction?
Conduction is the transfer of heat through a material without the movement of the material itself.
True or False: Conduction occurs best in gases.
False
Fill in the blank: In conduction, heat energy is transferred through ________ of particles.
collisions
What is convection?
Convection is the flow of heat energy from a region of high temperature to a region of low temperature by movement of a fluid
Multiple Choice: Which of the following is an example of convection? A) A metal spoon in a hot pot B) Warm air rising C) Ice melting
B) Warm air rising
True or False: Convection can occur in solids.
False
What is radiation?
Radiation is the transfer of heat energy by electromagnetic waves without involving particles
Fill in the blank: The sun warms the Earth through ________.
radiation
Multiple Choice: Which method of heat transfer does not require a medium? A) Conduction B) Convection C) Radiation
C) Radiation
What is the primary method of heat transfer in liquids?
Convection
True or False: Metals are good conductors of heat.
True
Fill in the blank: The process of warm air rising and cool air sinking is called ________.
convection currents
What is an example of conduction?
A metal rod heated at one end.
Multiple Choice: Which of the following materials is a poor conductor of heat? A) Copper B) Wood C) Aluminum
B) Wood
What happens to the particles in a substance when it is heated?
They gain energy and move faster.
