Conduction happens when:
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1 point
molecules vibrate quickly bump into other molecules, which transfers heat
heat is transferred by physical touch
free electrons collide with atoms which cause faster vibrations
all of the above
All of the above
The correct answer is: all of the above.
Conduction can occur through multiple mechanisms. One mechanism is when molecules vibrate quickly and bump into other molecules, which transfers heat. Another mechanism is through physical touch, where heat is directly transferred from one object to another. Additionally, in some materials, conduction can occur through the movement of free electrons colliding with atoms and causing faster vibrations, which also transfers heat. Therefore, all of these mechanisms can contribute to conduction.
The correct answer is:
All of the above.
Explanation:
Conduction is the process of heat transfer in which heat is transferred through direct physical contact between molecules or objects. It can occur in different ways:
1. Molecules vibrating quickly and bumping into other molecules: In solids, such as metals, heat is transferred through conduction by the vibrations of molecules. When molecules vibrate quickly, they transfer kinetic energy to neighboring molecules through collisions. This kinetic energy is then transferred as heat.
2. Heat transfer through physical touch: Conduction can also occur when two objects with different temperatures come into direct contact with each other. Heat energy flows from the hotter object to the colder one until they reach thermal equilibrium. This can be observed when you touch a hot pan and feel the heat being transferred to your hand.
3. Free electrons colliding with atoms and causing faster vibrations: Conduction can also occur in metals due to the movement of free electrons. Metals have loosely bound electrons that are free to move within the lattice structure. These free electrons collide with atoms and transfer their energy, causing faster vibrations and heat transfer.
Therefore, all of the options mentioned in the question contribute to heat conduction.