Which statements accurately describe conduction and convection? Check all that apply.Only conduction needs matter to transfer thermal energy.Only convection needs matter to transfer thermal energy.Both conduction and convection need matter to transfer thermal energy.Conduction involves collision of particles, while convection involves the movement of a liquid or gas.Convection involves collision of particles, while conduction involves the movement of a liquid or gas.
Answer
A
Only conduction needs matter to transfer thermal energy.
B
Only convection needs matter to transfer thermal energy.
C
Both conduction and convection need matter to transfer thermal energy.
D
Conduction involves collision of particles, while convection involves the movement of a liquid or gas.
E
Convection involves collision of particles, while conduction involves the movement of a liquid or gas.
Explanation
Both conduction and convection transfer thermal energy through matter, so both require a material medium; neither transfers energy through empty space. Conduction transfers energy through collisions between particles, while convection transfers energy through the bulk movement of a liquid or gas. Therefore, the accurate statements are that both need matter and that conduction involves particle collisions while convection involves fluid movement.
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