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Kinetic-Molecular Theory States that matter is made up of many tiny particles that are always in motion.
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Kinetic-Molecular Theory The particles move faster in hot matter than in cold matter.
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Conduction The process of heat being transferred by the direct contact of a solid or liquid
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Convection The process of heat being transferred by the direct contact of a gas
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Radiation The process of heat being transferred as waves
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Temperature Depends on the Kinetic Energy of the particles moving around
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Thermometer Measures the number of times the particles hit the bulb of the thermometer
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Thermal Equilibrium The temperature of something which is the average number of hits by the particles
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Absolute Zero The temperature at which the particles no longer move
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Kelvin Temperature scale based on the idea of absolute zero. The lowest number is 0.
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Heat The energy that flows as a result of a difference in temperature.
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Specific Heat The amount of energy that must be added to raise the temperature of a unit mass one temperature unit
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Calorimeter A device used to measure changes in thermal energy.
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Thermodynamics The study of how heat is transferred and reacts
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Melting Point The exact temperature at which a solid changes into a liquid
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Heat of Fusion The amount of energy needed to raise the temperature to the point where it melts a solid into a liquid
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Boiling Point The exact temperature at which a liquid changes into a gas
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Heat of Vaporization The amount of energy needed to vaporize a liquid into a gas and to continue raising the temperature.
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Heating Curve for Water 120 °C steam 100 °C water steam 50°C liquid water 0 °C ice liquid -10 °C ice Heat added
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First Law of Thermodynamics The total increase in thermal energy of a system is equal to the sum of the work done on it and the heat added to it.
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Second Law of Thermodynamics Natural processes go in a direction that increases the total entropy of the universe
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Scale A determined measurement with a distinct base line.
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Temperature Scales Fahrenheit Celsius Kelvin Rankine
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Temperature Conversion o F= o C1.8 + 32 o C=0.56( o F-32) K= o C+273.15 o C=K-273.15 R= o F+459.67 o F=R-459.67
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Celsius Temperature scale based on the idea of water freezing at 0 o.
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Fahrenheit Temperature scale based on the idea of a ice water and salt mixture being 0 o.
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Rankine Temperature scale base on the idea of absolute zero. Based off of Fahrenheit. Absolute zero is equal to -459.67 o F.
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Heat and Energy- Joule (J) Specific Heat- JK/kg Energy- calorie (cal) Heat from food- Calorie (Cal) Heat of fusion and vaporization- J/kg 1 cal = 4.18J 1Cal = 1kcal = 1000cal
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Entropy Measure of disorder in a system. It is also the measure of heat change in a system.
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Radioactivity Decay, or breaking apart, of unstable elements such as uranium and thorium, resulting in the release of high-energy particles
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Radioactivity can give off Alpha Particles α Beta Particles β Gamma Rays γ
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Alpha Particle
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Beta Particle
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There are four categories which forces are placed.
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