topic 1&2 unit 3
Since ancient times people have use _______ energy to heat/cook thier food and keep them warm?
what is thermal energy?
Solid,Liqued,Gas.
What are the three states of matter?
To increase in volume.
What is the definision of expandsion?
Light and shiny abjects do not absorb __________ _______.
What is radiant energy
Energy from the interior of the earth.
What is geothermal energy?
Moderen thermomiters have ______ , (the older thermometers did not have these.)
What are scales?
Enery can not be created or destroyed.It can only be transformed from one type to another,or passed from one object,or substance to another
The Law of Conservation of Energy.
Plasma
What is the fourth state of matter?
Dull and dark oblects ________ light.
What is absrob?
The greatest source of energy. (will never run out)
What is the sun /geothermal energy.
Kelvin,Celsius,Farenhight
What are the different types of scales?
sublimation (x2), condusation,vaporization,fusion, freezing.
What are the changes of states?
When warm particals transfer their energy to the cooler particels they move in a cicular patttern (Lava lamps)
What is the definition of a convection current?
~ Tastless
~ colourless
~odorless
~ burns without oxygen
What is carbon monoxide?
Meachanicl or electrical divice for measuring temperature.
What is a thermometer
The ability measuer of a substance to do work or cause change.
Define energy?
No define shape or size.
Can be compressed
What is the gases property on the particle model?
~cosmic ~Infrared
~Gamma ~Microwaves
~x rays ~ Radio
~ultra violet
What are the six way of transfering energy?
~These energy sourcesare nonrenewable and their supplies are running out.
~They producetoxic chemical which can harm the environment by producing a greenhouse effect resulting in global warming.
What are the two problems for fossil fuels?
Kelvine, Celsiuse, farinhite
What are the scales?
~not a substance
~no mass
~no weight
~does not take up space
What energy is not.
When some of the surface particals in a liqued escape.
What is the definition of evaportive cooling.
~energy source
~direction of energy transfer
~transformations
~Waste heat
~control systems
What are the five features of Energy Transfer Systems?
~sulfer dioxide and carbondioxide.
What are the by products of thermal energy?