Physics crossword

2. neutrons- a free neutron with a kinetic energy of about 0.025 eV (about 4.0×10−21 J or 2.4 MJ/kg, hence a speed of 2.19 km/s)
5. power station- also called combustion power plants, they operate with energy produced by a steam boiler fueled by coal, natural gas, heating oil, as well as by biomass.
9. energy - advantages and disadvantages- An energy source that is both renewable and inexhaustible by definition. High upfront cost.
10. energy- energy per unit mass.
11. rods- used to control the power of a nuclear reactor
12. not able to be renewed.
14. energy - advantages and disadvantages- While nuclear energy may be clean and its production emission-free, experts highlight a hidden danger of this power: nuclear waste.
17. The minimum amount of electric power delivered or required over a given period of time at a steady rate.
20. - advantages and disadvantages- It is clean and sustainable., the impact it can have on the environment.
22. vibrations- can behave like particles or waves
23. diagram- a visualization used to depict a flow from one set of values to another.
24. an arbitrator or mediator.

1. storage system- a configuration of two water reservoirs at different elevations that can generate power as water moves down from one to the other (discharge), passing through a turbine
2. conduction- the diffusion of thermal energy (heat) within one material or between materials in contact.
3. heating panel- Active solar heating systems use solar energy to heat a fluid -- either liquid or air -- and then transfer the solar heat directly to the interior space or to a storage system for later use.
4. cells- a nonmechanical device that converts sunlight directly into electricity.
6. capable of being renewed.
7. fuels- made from decomposing plants and animals.
8. source (energy)- produced by converting primary sources of energy such as coal, natural gas, nuclear energy, solar energy, and wind energy
13. exchanger- a device which transfers heat from one medium to another,
15. density- the amount of energy stored in a given system or region of space per unit volume.
16. source (energy)- fossil fuels (petroleum, natural gas, and coal), nuclear energy, and renewable sources of energy.
18. energy- thermal energy that is released into the surrounding environment after any process.
19. energy - advantages and disadvantages-wind is a clean, renewable energy source and is one of the most cost-effective sources of electricity.
21. having had the proportion of the isotope U-235 it contains increased in order to make it suitable for use in a nuclear reactor or weapon.