A student heats an insulated steel block using an electrical heater. The temperature of the block rises. a The heater supplies energy to the block. In what form does the block store this energy?
b The student then heats a second block, made of copper. The heater supplies energy at the same rate as
La) before. The temperature of this block rises faster than that of the steel block. Which block has the
greater thermal capacity? Explain your answer.

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.