7.7 CW 1

4. a broken path where charges cannot flow, so energy is not transferred
9. the idea that energy is not created or destroyed; it only changes form or moves somewhere else
11. a wave, like light, that can transfer energy without needing matter to travel through
12. the flow of electric charges through a circuit
15. the difference in electrical energy that pushes charges through a circuit
18. how tall a wave is; bigger amplitude means the wave is carrying more energy
21. stored energy an object has because of its height and mass
25. how much a material or circuit slows down the flow of electric charges
26. a circuit with more than one path for charges to travel
27. the distance from one wave to the next matching point, like crest to crest
28. the object or group of objects being looked at as one whole

1. a change of energy from one form to another
2. the energy connected to how particles move in matter
3. the number of waves that pass a point in a certain amount of time
5. a wave that needs matter, called a medium, to travel
6. a path that lets electricity move from a source to a device
7. the lowest point of a wave
8. a complete path that allows charges to flow and transfer energy
9. the highest point of a wave
10. stored energy caused by the position of charged particles
13. transfer of thermal energy when particles bump into each other
14. a device that changes mechanical energy into electrical energy
16. the matter a mechanical wave travels through, such as air, water, or a solid
17. a circuit with only one path for charges to travel
19. transfer of thermal energy when warmer fluids rise and cooler fluids sink
20. transfer of thermal energy by waves
22. energy involved with motion or position that can move objects by pushes or pulls
23. a system that can exchange matter or energy with its surroundings
24. the transfer of thermal energy from something warmer to something cooler