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Unit 2 - Miss Kimble
Force, Motion, & Energy
Term | Definition |
---|---|
Force | A push or pull |
Friction | a force that works against motion |
Work | What occurs when a force moves an object over a distance |
Gravity | The force that pulls objects toward each other (what makes objects fall to the ground) |
Energy | the ability to do work (electrical, mechanical, thermal, light, and sound) |
Electrical Energy | energy that comes from electric current |
Mechanical Energy | work done from something that is moving |
Thermal Energy | the energy of moving particles that produce heat |
Light Energy | a form of energy that can be seen |
Sound Energy | a type of energy that can be heard, caused by vibrations |
Complete Path | needed for electrons to be able to flow |
Series Circuit | an electric circuit in which electricity only has one path to follow (if one light goes out, they all go out) |
Parallel Circuit | an electric circuit in which electricity has multiple paths to follow |
Switch | Turns a circuit on and off |
Conductor | a material that allows electricity and thermal energy to pass through easily (usually metal) |
Insulator | a material that does NOT allow electricity or thermal energy to pass through easily (plastic, rubber, cloth, wood, Styrofoam) |
Reflect | the bouncing off of light rays from a surface. Enters and exits at the same angle. (Mirror, Still Water) |
Refract | the bending of light as it moves from one material into another (Rainbows, Pencil in Water) |
Prism | a transparent, 3 dimensional shape used to separate white light into the color spectrum |
Circuit | the path of an electric current |
Mirror | a reflective surface, usually silver in color |
Lens | a transparent piece of glass or plastic used for refracting light |
Electric Current | the flow of electric charges along a path |