Y2_T4_LSN4.4

• Science
• Middelbare school
• havo, vwo
• Leerjaar 2

KWIZL: ET_Y2_4.4

§4.4 Temperature & Heat

p. 182-183

exercises 30-41 pages 184-187

§4.4 - Learning Goals:

• I can describe the concept of temperature, the different scales it can be measured on and the units that belong to those.
•  I can convert temperatures between the Celsius and Kelvin scale.
• I can describe the concept of heat and the units it can be measured in.
• I can distinguish between the concepts of temperature and heat.
• I can describe the concept of heat of combustion and use it to calculate the amount of energy released during combustion.

P.182-183

§4.4 - Keywords:

• Heat
• Temperature
• Celcius
• Kelvin
• Heat of combustion

P.182-183

Heat vs. Temp

• Heat - total amount of kinetic energy of the molecules in substance, measured in joules.

• Temperature - average amount of kinetic energy per molecule in a substance, measured in ºC or K.

P.182-183

Celcius vs Kelvin

• Celsius (ºC) - Based on freezing (0 ºC) and boiling (100 ºC) of water

• Kelvin (K) - Based on absolute zero (0 K), the lowest possible temperature, where particles stop moving.

P.182-183

Heat of combustion

Combustion reactions:

• exothermic, release a lot of heat  
• burning fuels produces heat that is used for many purposes.

Different fuels give off different amounts of heat, this is known as the heat of combustion.

P.182-183

Hw for lesson 5:

• Complete exercises 30-41 of §4.4 pages 184-187
• Read §4.5 pages 188-189
• Study the glossaries of §4.4 - §4.5 on Studygo.

P.182-187

Lablesson:

• working on pairs
• labjournals ready to be checked
• one labjournal per pair goes to the lab
• you get on printed worksheet for the table

P.182-187