demes puzzle

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Across
  1. 2. This energy has an electric field and a magnetic field associated with it, and has wave-like properties
  2. 3. is electromagnetic radiation (EMR) with wavelengths longer than those of visible light and shorter than radio waves
  3. 7. also applied to the energy carried by a heat flow
  4. 8. the unit of force
  5. 9. an object is the form of energy that it possesses due to its motion
  6. 11. the mechanical potential energy stored in the configuration of a material or physical system
  7. 14. he energy of electromagnetic and gravitational radiation. As energy, its SI unit
  8. 16. the potential energy a massive object has in relation to another massive object due to gravity.
  9. 17. something that has never been done before
  10. 18. energy related to forces on electrically-charged particles and the movement of those particles (often electrons in wires
  11. 19. the energy held by an object because of its position relative to other objects
  12. 22. is a type of flow, of motion of a liquid such as water or a gas such as air, in which the fluid motion is not generated by any external
  13. 23. the thing that keeps us from floating
  14. 24. a group of two or more atoms held together by attractive forces known as chemical bonds
  15. 25. something you can use to see in space
  16. 27. the sum of potential energy and kinetic energy
  17. 28. the substance's mass per unit of volume
Down
  1. 1. states that the total energy of an isolated system remains constant
  2. 4. the balance between the radiant energy that reaches Earth from the sun and the energy that flows from Earth back
  3. 5. the transmission of an electrical or chemical impulse along a nerve fibre
  4. 6. energy that is used physically
  5. 10. is also applied to the energy carried by a heat flow
  6. 12. the energy of chemical substances that is released when the substances undergo a chemical reaction and transform into other substances
  7. 13. the energy released during nuclear fission or fusion, especially when used to generate electricity.
  8. 15. the set of physical phenomena associated with the presence and motion of matter that has a property of electric charge
  9. 16. the trapping of the sun's warmth in a planet's lower atmosphere, due to the greater transparency of the atmosphere to visible radiation from the sun than to infrared radiation emitted from the planet's surface
  10. 20. its only visible to the human eye
  11. 21. This energy has an electric field and a magnetic field associated with it, and has wave-like properties
  12. 22. a small body orbiting the Sun with a substantial fraction of its composition made up of volatile ices
  13. 26. the time rate at which an object is moving along a path