Thursday, 9 April 2020

7A, 7C, 7F Science: Heat radiation

7A, 7C, 7F
https://www.youtube.com/watch?v=5GoZZKcNZiQ

https://www.ck12.org/c/physics/thermal-radiation/lesson/Thermal-Radiation-MS-PS/

Heat Radiation notes:

- Energy transfer by radiation occurs at the speed of light and suffers no reduction in vacuum. 

- Radiation can occur between two bodies separated by a medium colder than both bodies. 

- and that is why your parents' car gets awfully hot when they park in outside a mall during the summer.  Heat radiation goes through the windows and heat up the interior

- in the summer, the inside of a car can get as hot as 45°C in 30 mins

- don't leave your pets inside the car during a hot summer day

Watch this: Cooking bacon and eggs inside a hot car in Australia.  Cool!
https://www.youtube.com/watch?v=CLJTX7pH05w

How to use heat radiation in greenhouse to grow crops?
https://www.school-for-champions.com/science/heating_greenhouse.htm 
Greenhouse tomatoes video
https://www.youtube.com/watch?v=B5Kcc_7PE2I
The world most expensive mangoes are grown in a Japanese greenhouse
https://www.youtube.com/watch?v=9eF0bM1KGyA
https://www.youtube.com/watch?v=xateP2qrgMo


No comments:

Post a Comment