Technology
What is Thermal energy?
Thermal energy is the heat you get when molecules move.
What happens to the particles when the temperature rises?
The particles speed up and expand.
Has a definite shape and volume
What is a solid?
What kind of thermal energy is in the earth?
Geothermal Energy.
What is Thermal Expansion?
To change shape, volume, density and area because of temperature.
What is thermal technology?
Thermal technology is producing, storing, controlling, transmitting from heat energy.
What happens to the particles when the temperature cools?
The particles slow down and contract together.
In what state do molecules move extremely quickly and by bouncing off each other.
What is a gas?
Where can you find natural thermal energy?
The Sun, fire and below the Earth's surface.
Which way does heat transfer? From hot to cold or cold to hot?
Hot to cold
What are examples of thermal technology?
Examples of thermal technology is Ovens, Blow Dyers, refrigerators, Air Conditioners, Heating systems.
What needs to happen for thermal energy to build up?
The temperature need to rise.
The boiling and freezing temperatures?
0°C and 100°C
Which natural phenomenon's are caused by thermal energy?
Volcanoes, geysers and fumeraroles.
How can you save energy?
turning off lights, fixing any leaks, using natural lights are all ways.
Where do we use thermal technology is everyday life.
We use thermal technology in climate control, cooking, drying, heating, water heating, cooling and manufacturing
How do particles create heat?
The temperature needs to rise enough for, the molecules to speed up, so they can collide causing friction creating heat.
Which state of matter holds the most kinetic energy.
Gasses
What are some disadvantages of thermal energy?
Disadvantages is the occasional release of harmful gases. When drilling in the earth, gasses could be released. It is also quite expensive and takes up a decent amount on land.
What are 2 different ways to insulate your house?
Using a doors snake, double glazing windows, thick curtains.
How is thermal technology useful to us.
It helps heat our house, keep us warm, wash and dry our clothes, as well as manufacture and create and produce products.
The particles of matter are always doing this.
They are always moving/vibrating.
Why do solids have the least and gasses have the most kinetic energy?
Solids, have the least because they have the least intermolecular attraction, so they have less room to moveand cannot build up inetic enerare the opposite.
What are some advantages of Thermal energy.
Thermal power is admired because it is completely renewable, it does not use fuel to produce power and has virtually no emissions. It also helps reduce global warming and pollution and requires less land than a coal mine or oil field.
What is intermolecular attraction?
The attraction between neighboring molecules.