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Physical Science
Chapter 4
| Question | Answer |
|---|---|
| energy in the form of motion | kinetic energy |
| ____of energy states that all though energy can change forms it can never be created or destroyed | the law of conservation |
| the greater the _____a moving object has, the more kinetic energy it has | mass |
| a rock at the edge of a cliff has ____energy because of its position | potential |
| when a plant falls from a window its _____ energy is transformed into kinetic energy | potential |
| friction causes some mechanical energy to change into _____ energy | thermal |
| energy that is stored is ____energy | potential |
| energy is measured in ____ | joules |
| doubling an object's velocity will _________its kinetic energy | quadruple |
| _____ energy is energy stored in chemical bonds | chemical potential |
| _____energy is energy stored by things that stretch or compress | elastic |
| A book and a feather sitting next to each other on a shelf have ____potential energies | different |
| Two copies of the same book are in a book case. One book is twice as high. They have ______ potential energy. | different |
| A toaster uses ________energy to make toast. | thermal |
| ______energy is the total amount of potential energy and kinetic energy in a system | mechanical |
| which is not used to calculate kinetic energy | height |
| which is not used to calculate potential energy | velocity |
| the mechanical energy of a coconut falling from a tree | remains constant |
| green plants convert light energy from the sun into | chemical energy |
| ____can cause kinetic energy to change into thermal energy | friction |
| the kinetic energy of an object increase as its ___________increase | velocity |
| the _____ energy of an object increase with its height | potential |
| thermal energy is measured in ____ | joules |
| mechanical energy is the total ______ and ______ in a system | kinetic and potential |
| GPE | =MxGxH |
| KE | =1/2 M xV^2 |
Created by:
Jodom