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light and heat: pdj
| Term | Definition |
|---|---|
| reflector | a flat smooth shiny object |
| translucent | allows some light to pass through it |
| Opaque | does not allow light to pass through it |
| transparent | Allows all light to pass through it |
| conductor | allows light to pass though it |
| insulator | an object that slows or stops energy |
| light energy | energy that travels in a form of straight lines |
| thermal energy | energy that comes from heat |