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Thermal Properties
Question | Answer |
---|---|
Conductor | A material that conducts heat well |
Solid Copper | Conductor |
Solid gold | Conductor |
Steel | Conductor |
Tile | Conductor |
Insulator | A material that doesn't conduct heat well |
Wood | Insulator |
Wool | Insulator |
Air | Insulator |
Stone | Insulator |
Lead | Insulator |
Glass | Insulator |
Rubber | Insulator |
Specific heat | The amount of thermal energy needed to raise the temperature of 1 gram of material by 1 degree Celsius. |
Objects with high specific heat... | ...warm up and cool down slowly because they require more energy to raise their temperature. |
Objects with low specific heat... | ...warm up and cool down quickly because they require less energy to raise their temperature. |
Metals | Low specific heat |
Sand | Low specific heat |
Water | High specific heat |
Cork | High specific heat |
Rubber | High specific heat |
Wood | High specific heat |
Formula for finding Thermal Energy change of an object | Q=M x C x /\T |
What does the Q variable signify? | Change in thermal energy (Joules) |
What does the M variable signify? | Mass of the substance |
What does the /\T variable signify? | Change in the substance's temperature |
What does the C variable signify? | Specific heat of the substance |
What is water's specific heat? | 4.18 degrees J/g*C |
Thermal expansion | The expansion of matter when it is heated. As the thermal energy of matter increases, its particles usually spread out, causing it to expand. |
Method to convert Fahrenheit to Celsius | C = (F - 32) x 5 / 9 |
Method to convert Celsius to Fahrenheit | F = (C x 9 / 5) + 32 |