thermal processes

Question 1

thermal equilibrium

Answer 1

a state in which two or more objects have the same temp, and there is no net transfer of energy between them

energy will always be transferred by heating from a region of higher temp to a region of lower tepm, until both regions are of equal temp

Question 2

3 ways energy cannot be transferred

Answer 2

• conduction
• convection
• radiation

Question 3

define conduction

Answer 3

conduction is a process of energy transfer whereby energy is transferred through the passing on vibrational motion from one particle to another

Question 4

conduction process in non-metals

Answer 4

• particles nearest to heat sorce gain energy in kinetic store
• more energetic particles collide with neighbouring less energetic particles
• energy transferred to less energetic particles
• less energetic particles vibrate more vigorously
• process repeats u til energy is transferred to the opposite end

Question 5

conduction process in metals

Answer 5

• metals have free electrons that can gain energy in kinetic store frkm the heat sorce
• electrons are smaller-sized and move at higher speeds
• electrons move quickly and easily to the opposite end of the
• energy transferred at faster rate
• particles at opposite end vibrate more vigorously