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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 |