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chptr. 4
chapter 4 test
| Question | Answer |
|---|---|
| the ability to cause change, or something can change form as it is transferred | energy |
| the kind of energy an object has due to position | potential |
| the kind of energy an object has because of its motion | kinetic |
| the kind of PE an object above Earth's surface has | Gravitational |
| a factor that affects KE but not GPE | Speed |
| A kind of energy that is stored in chemical bonds | chemical |
| a factor that affects GPE | height |
| The SI unit for Energy | Joule |
| something that burns to produce CO2 and Water | Natural Gas |
| the kind of potential energy that is stored in something that can stretch | elastic |
| formula for KE | KE= 1/2 mass x speed^2 |
| Formula for GPE | GPE= mass x acceleration of gravity x height |
| energy in the form of motion is ___ ___ | KE |
| the greater ____ a moving object has, the more kinetic energy it has. | mass; velocity |
| A rock on the edge of a cliff has _____ _____, because of position | PE |
| thermal energy | |
| energy that is stored is ____ ___ | chemical energy |
| _____ is measured in joules | energy |
| doubling an object's velocity will _____ its kinetic energy | 4x |
| _____ _____ _____ in energy stored in chemical bonds | Chemical potential energy |
| ___ ____ stored by thing that stretch or compress | elastic energy |
| a book and a feather sitting next to each other on a shelf have _____ PEs | different |
| 2 copies of the same book are in a book case. One book is 2x as high as the other. They have ____ PEs | different |
| A toaster uses _____ ____ to make toast | thermal energy |
| ____ ____ is the total amount of PE and KE in a system. | Mechanical energy |
| When a plant fall from a window, its ___ ___ in transformed into KE | Potential Energy |
| The ___ __ _______ ___ ______ states that although energy can change forms, it can never be created or destroyed | law of conservation of energy |
| Thermal energy is measured in __ | joules |
| the ____ energy of an object increases with it height | Potential |
| the kinetic energy of an object increases as its ___ increases | speed |
| mechanical energy is the total KE and ___ ____ in a system | PE |
| ____ can cause KE to change into thermal energies | heat |
| green plants can convert light energy from the sun into _____. | chemical potential energy |
| the mechanical energy of a coconut falling from a tree __ ___ | remains constant |
| The law of ___ __ ____ states that energy in a system can change forms but can never be created or destroyed | conservation of energy |
| energy stored by objects due to their position above earth's surface | GPE |
| the total amount of potential and kinetic energy in a system | mechanical energy |
| energy cannot be created or destroyed | law of conservation of energy |
| stored energy due to position | potential energy |
| energy stored by something that can stretch or compress | elastic potential energy |
| energy stored in chemical bonds | chemical potential energy |
| SI unit for energy | Joule |
| energy a moving object has because of its motion | kinetic energy |
Created by:
missyprissi96
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