Homework 9: Bringing the Heat :)

Objective 1:
1. Kelvin, Fahrenheit, and Celsius
2.Temperature is how heat (or cool) is measured. Thermal energy is heat and/or how it is measured.
3. It means that it has a high capacity for storing heat energy.
4. An ice cube melts because the heat from your hand heats up the particles and then the solid becomes a liquid.
5. Some materials heat up faster because the thing that is heating them up it hotter. --> hotter: faster... cooler: slower.

Objective 2:
1. When the liquid inside of the thermometer heats up, the pressure causes it to expand and go upwards.
2. http://www.theweatherprediction.com/basic/conversions/

Celsius to Fahrenheit	° F = 9/5 × ( ° C) + 32
Kelvin to Fahrenheit	° F = 9/5(° K - 273) + 32
Fahrenheit to Celsius	° C = 5/9(° F - 32)
Celsius to Kelvin	K = ° C + 273
Fahrenheit to Kelvin	K = 5/9 (° F - 32) + 273

3. 5/9(5-32) --> 15 degrees fahrenheit
4. 5/9 (860-32) --> 5/9(828)--> 460.000004 degrees
5. 4,180*50= 209,000 J

Objective 3:
1.Conduction, convection, and radiation
2. Heat rises (aka it goes up)
3. Conductors transfer thermal energy well and Insulators don't.
4. Conductor because conductors are mostly metals.
5. You keep warm by putting something warm on such as wool. Build a fire...

Objective 4:
1.Heating up particles or cooling them down.
2. It heats up.
3.Because it depends on how fast or slow they go and not how much they take up.
4.The particles move faster and vibrate and melt in to a liquid.
5. So the pressure inside of it doesn't build up and make the potato explode.

Objective 5:
1.Heat is transferred from the source, through the "working body" of the engine, to the sink, and in this process some of the heat is converted into work by exploiting the properties of a working substance (usually a gas or liquid). -->  http://en.wikipedia.org/wiki/Heat_engine
2.The engines use different ways of heating up. One can use convection and the other can use insulator.
3. So they wont heat up as much.
4. Solid to a Liquid ---> freezing
5. The heat would move into the refrigerator and then it would become hotter in the fridge.