Topic 1-2
Washing machines, drying machines, hair dryers, fireplace
What are 3 common uses of energy?
the scientific description of many different features of these tiny particles
What is the particle model of matter
Solid, liquid, gas
What are the three states of matter?
amount of thermal energy that warms or cools one gram of a material by one degree Celsius
What is specific heat capacity?
energy from the sun
what is solar energy?
mechanical or electrical devices for measuring temperature
What are thermometers?
A substance cools
what happens when a substances temperature decreases?
The increase and decrease of volume and or temperature
What is expanding and contracting?
frost patterns on a window
What is an example of sublimation (deposition) (gas to solid)
chemicals from plants and other organisms that died and decomposed millions years ago have been preserved deep underground
What are fossil fuels?
Thermocouple, The Bimetallic strip, The recording thermometer, The infrared Thermogram
What are the four thermostats?
Energy associated with hot objects
what is thermal energy?
The increase of temperature when a thermometer is placed in a hot/warm substance (graph related)
Warming curve
an object or material that can transfer its energy to other objects
What is an energy source?
uses mechanical devices like fans to distribute stored thermal energy
What is Active solar heating?
Celsius Scale and Kelvin scale
what are the two most popular scales
Energy cannot be created or destroyed. It can only be transformed from one type to another or passed from one object to another
What is the Law of Conservation of Energy?
the ability to take the shape of something
What is NO definite shape?
The transfer of energy without any movement of matter
What is radiation?
uses the waste heat to generate electricity or heat buildings or do other useful things
Humans have created and invented fireplaces, washing and drying machines and many other objects to our advantage using thermal energy
In what ways have humans used thermal energy work for them?
I just do Not have enough ENERGY to do my homework
or
Your look exhausted! Did cleaning the house take all of your energy?
What is energy not?
no fixed shape and size
30 degrees celsius of a mixture
What is the temperature if 100 ml of hot water (50 degrees celsius) is mixed with 100 ml or cold water (10 degrees celsius)?
liquids that evaporate easily at low temperatures
what are refrigerants?