What is qualitative data?
General observations that can best be described by using words or drawings.
What is quantitative data?
Consists of numerical values for quantities being measured.
What is an example of qualitative data?
Describing our observations on what we felt when we moved our fingers from different temperatures of water.
What is an example of quantitative data?
When we took the temperature in degrees celsius of three cups of water every two minutes.
What is thermodynamics?
The study of heat and heat transfer.
What are the laws of conservation of energy?
Energy can be transferred into different forms. Energy is always conserved in any transfer process. Energy can be neither created nor destroyed.
What is the second law of thermodynamics?
Heat always flows from an area of higher temperature to an area of lower temperature.
Whats an example of the second law of thermodynamics?
When a cat is sunning itself, most of the heat it absorbs is transferred from its body to the air, so that the cat maintains its body temperature.
What is the first law of thermodynamics?
All heat entering a system adds that amount of energy to the system.