Question

a pot of water is heated on an electric stove top and begins to boil. which two transfers of thermal energy involved in this system are examples of conduction?

a. from the pot to the water
b. in the water as water currents develop
c. from the burner to the bottom of the pot
d. from the air above the pot as currents form

Explanation:

1. Recall the definition of conduction: transfer of thermal energy through direct contact of particles (no bulk movement of matter).
2. Analyze Option A: The pot and water are in direct contact, so heat transfers from pot to water via conduction.
3. Analyze Option B: Water currents developing means bulk movement of water (convection), not conduction.
4. Analyze Option C: The burner and bottom of the pot are in direct contact, so heat transfers from burner to pot bottom via conduction.
5. Analyze Option D: Air currents forming means bulk movement of air (convection), not conduction.

Answer:

A. From the pot to the water, C. From the burner to the bottom of the pot