Question

summarize it

1. how does the motion of molecules in solids relate to thermal energy transfer in conduction?

a. as molecules gain thermal energy, they begin to move around and transfer thermal energy to the molecules they pass by.
b. molecules flow around one another, and those with more thermal energy absorb it from neighboring molecules at a cooler temperature.
c. molecules with less thermal energy will transfer thermal energy to those with more thermal energy.
d. molecules involved in conduction vibrate in place due to high amounts of thermal energy, transferring it to less active molecules nearby.

1. a student conducts an investigation in which they heat water on a hot plate. which of the followir answers explains results they may get from this investigation?

a. thermal energy transfers from warmer molecules to cooler ones in the water via convection.
b. thermal energy travels through the cooler molecules in the water to warmer ones after contacting the hot plate.
c. the water will heat up faster if the sun is shining, because radiation conducts thermal ener
d. conduction allows the cooler molecules to transfer heat energy to warmer molecules.

1. a microwave heating leftovers is an example of thermal energy transfer by-

a. radiation.
b. induction.
c. convection.
d. conduction.

Explanation:

1. In solids, molecules vibrate in place. When they gain thermal energy (vibrate more), they transfer it to less active (less energetic) nearby molecules. Option D correctly describes this.
2. Thermal energy transfers from warmer to cooler molecules. In water heating on a hot - plate, convection (movement of fluid due to density differences caused by temperature) occurs. Option A is correct as it follows the principle of heat transfer from warm to cool.
3. Microwaves use electromagnetic waves (radiation) to heat food. Radiation is the transfer of energy via electromagnetic waves.

Answer:

1. D. Molecules involved in conduction vibrate in place due to high amounts of thermal energy, transferring it to less active molecules nearby.
2. A. Thermal energy transfers from warmer molecules to cooler ones in the water via convection.
3. A. radiation.