Two iron blocks are the same size. one block has a higher temperature than the other. which describes the thermal energy of these blocks?
a. lower temperature means greater potential energy, which means the colder block has greater thermal energy.
b. lower temperature means greater kinetic energy, which means the colder block has greater thermal energy.
c. higher temperature means greater potential energy, which means the warmer block has greater thermal energy.
d. higher temperature means greater kinetic energy, which means the warmer block has greater thermal energy.

Sally turns on her cellular telephone to speak to her friend who is located thousands of miles away. which of the following best describes how such a telephone is able to transmit and receive information? a. the cellular telephone transmits, receives, and encodes information using only sound waves. b. the cellular telephone transmits, receives, and encodes information using only electromagnetic waves. c. the cellular telephone transmits information by electromagnetic waves to a receiver which then encodes them and produces sound. d. the cellular telephone transmits information by sound waves to a receiver which then encodes them and produces electromagnetic waves.