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Science Chap. 18v
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| Question | Answer |
|---|---|
| What is the ability to cause change? | Energy |
| Energy due to motion is what? | Kinetic Energy |
| Kinetic energy depends on what? | speed and mass |
| When objects ______ kinetic energy can be transfered | collide |
| Stored energy due to an objects position | potential energy |
| What is energy changes from one form to another without any energy being lost's or gained? | Energy transformations |
| Potential energy can be transfered into what kind of energy. | kinetic |
| The law of conservation of mass states what? | the energy can never be created or destroyed it can only change form. |
| The total amount of energy in the universe never what? | Changes |
| Kinetic energy can be converted into what type of energy | Heat Energy |
| What is the measure of the average kinetic energy of an objects atom's | Temp. |
| What is temp. measured with? | Thermometer |
| what scale is the freezing point of water measure in? | Fahrenheit |
| What is the transfer of energy from one object due to another due to a difference in temp. | heat |
| the flow of heat stops when what happens | when two objects have the same temp. |
| Heat can be _____ in three different ways. | transfered |
| the transfer of energy when two objects to collide | conduction |
| the transfer of heat particles move between objects or areas that differ in temp. most common in gases and liquids | convection |
| energy that is transfered by waves | radiation |
| chemical reactions can what? | transform energy |
| what are broken down or are formed in a chemical reaction | compound |
| energy in chemical bonds is a form of potential energy called what? | chemical energy |
| in every chemical ________________ energy is transformation occur | Reaction |
| to break chemical bonds what must be added? | energy |
| when chemical bonds are formed what is released | energy |
| reactions that absorb energy | endothermic |
| reactions the release energy | exothermic |
| chemical reactions occur at different rates a ______ changes the rate of the chemical reaction | catalyst |