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Energy
Unit 2 MELTS and Circuits
| word | definition |
|---|---|
| energy | ability to do work or cause change |
| mechanical energy | produced by a machine or movement |
| electrical energy | energy produced by a machine or movement |
| light energy | form of energy that can travel through space and be seen by the human eye |
| thermal energy | energy that causes a transfer of heat between materials |
| sound energy | energy produced from vibrations that you can hear |
| Rube Goldberg | unnecessarily complicated machine |
| electric current | flow of electric energy |
| parallel circuit | circuit with more than one path |
| series circuit | circuit with one path |
| circuit | a closed path that electric current flows through |
| comple path | closed circuit |
| incomplete path | open circuit |
| switch | a device for making and breaking the connection in an electric circuit |
| source/cell | battery |
| absorb | take in |
| lens | piece of see through material that is curved on one or both sides |
| medium | substance |
| prism | triangular shape; used to refract light |
| reflection | light bounces back |
| refraction | light bends |
| transmit | allow energy to pass through a medium |
| transparent | lets all light through ex. clear glass |
| translucent | lets some light through ex. wax paper |
| opaque | lets no light through ex. wood |