The steps in the heating of a metal seat in a park are listed below:
Step 1: Heat travels from the sun to Earth
Step 2: Heat travels through atmosphere to the top of the seat
Step 3: Heat from the top of the seat travels through the seat to the lower parts of the seat
Which statement is correct? (5 points)
Heat is transferred by radiation in Step 1 and Step 3.
Heat is transferred by radiation in Step 1 and Step 2.
Heat is transferred by convection in Step 1 and Step 2.
Heat is transferred by convection in Step 1 and Step 3.
Answers
Answer:
Heat is transferred by radiation in Step 1 and Step 3.
Answer:
Heat energy is a very difficult energy to store as it can transfer in three different ways from warm surroundings to cooler surroundings. The three processes are conduction, convection or radiation.
Conduction
A conductor is a material that allows internal (thermal) energy to be transmitted through it easily.
Metals, such as copper and aluminium are the best conductors of heat. This is because metals have loosely held outer electrons surrounding the atoms called 'free' electrons. Metals are also good electrical conductors because these electrons carry an electrical charge.
This means that when the end of a metal rod is heated the atoms of the metal vibrate like in every other non-metallic material.