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Energy Unit Test
Use to help study for your Energy Unit Test
| Question | Answer |
|---|---|
| Joules | The measure of work and energy. |
| Potential Energy | the energy that results from the position or shape of an object |
| Elastic Potential Energy | the energy created by something that is being compressed or stretched. Like a rubber band being stretched. |
| Kinetic Energy | the energy an object has due to its motion. Mass and speed will affect this energy. |
| Law of Energy Conservation | energy can neither be created nor destroyed, it can only be changed from one form to another |
| What energy transformation occurs when you rub your hands together? | kinetic energy to thermal energy |
| What energy transformation occurs when a pendulum swings? | Potential energy to Kinetic energy |
| Pendulum | Is an example of how a ball can go from potential energy to kinetic energy. |
| Most Gravitational Potential Energy | At the start of a fall. |
| Equal Gravitational Potential Energy | In the middle of a fall. |
| Lest Gravitational Potential Energy | At the end of a fall. |
| Celsius Boiling Point | 100 degrees |
| Two factors of Thermal energy | 1. The temperature of the object 2. The number of particles |
| Kelvin Scale | This scale is used by scientist and has no negative numbers. |
| Thermal Energy will increase when.. | there are more particles, so larger object will have more thermal energy. |
| Particle Speed | Will increase when heat is increased. |
| Thermal Energy | The total energy of all the particles in an object. |
| Convection | The transfer of heat by the movement of currents with a fluid or air. |
| Radiation | The transfer of energy by electromagnetic waves. |
| Convection Current | Circular flow of warmer and cooler fluid or air. |
| Conduction | The transfer of heat directly from on particle of matter to another without the movement of matter. |
| Warmer | Heat is always transferred from _________________________ areas. |
| Conduction Example | You go to grab a pot off the stove and burn yourself. |
| Insulator | is a material that does not conduct heat well. |
| Specific Heat | is the amount of energy it takes to raise the temperature of 1 kg of material 1 kelvin. |
| Thermal expansion | is the expanding of matter when it is heated. |
| Conductor | is a material that conducts heat well. |
| Energy Transformation | A change from one form of energy to another. All energy can be transformed into another. |
| Heat | The transfer of thermal energy from a warmer object to a cooler object |
| Temperature | The measure of the average kinetic energy of the individual particles in an object. |
| Absolute Zero | at this point, the particles in an object have no kinetic energy. |
Created by:
samir.ezzelarb
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