Question

A student likes to attend football games, no matter how cold and snowy the weather becomes. She is going to a game on a very cold day and takes along a hand warmer. She activates it and tucks it into the glove she is wearing. She holds her hands together, and before long, her hands are warm. Which best describes how her hands were warmed?

a: Heat was transferred by conduction, resulting in an increase in kinetic energy.
b: Heat was transformed by convection, resulting in the conservation of energy
c: Thermal energy was transferred by currents, resulting in an increase in kinetic energy.
d: Heat was transformed by radiation, resulting in an increase in kinetic energy.

Answer 1

The student's hands were warmed through heat transfer by conduction.

Step-by-step explanation:

The best description for how the student's hands were warmed is a: Heat was transferred by conduction, resulting in an increase in kinetic energy.

Conduction is the transfer of heat by two objects that are in direct contact with one another. In this case, the activated hand warmer inside the glove was in direct contact with the student's hands, resulting in the transfer of heat and an increase in kinetic energy, which made her hands warm.

This is different from convection, which involves heat transfer through the macroscopic movement of a fluid, and radiation, which occurs when electromagnetic radiation is emitted or absorbed.

Answer 2

The correct answer is - a: Heat was transferred by conduction, resulting in an increase in kinetic energy.

Step-by-step explanation:

Conduction is ne of the het transfer method where particular substance is heated and increase the kinetic energy which leads to the molecules to vibrate more and move or jump to the particles present in neughbouring substance and transfer some part of the enrgy.

This transfer is a continuous process untill both end become of same temperature of have same kinetic energy, In this case, heat is tranfer ffrom hand to gloves and to the other hand which are hold together after activating them.