physical science crossword

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Across
  1. 5. is the rate of change of the velocity of an object with respect to time
  2. 6. the structure in a cell that contains the chromosomes
  3. 7. is the directional speed of an object in motion
  4. 10. the combined effect (the sum) of all the pushing and pulling forces actually acting on the object
  5. 13. the unit of work
  6. 14. the Gravitational force with which the Earth attracts the masses towards the center
  7. 15. other substances.
  8. 16. an energy that doesn´t stop moving and creates friction
  9. 19. is mixture, such as air, contains a variety of pure gases.
  10. 21. is the amount of energy transferred or converted per unit time
  11. 23. was a theory and has never been proven
  12. 24. a state of matter that retains its shape and density when not confined
  13. 25. is a subatomic particle with a negative one elementary electric charge
  14. 27. is the energy of chemical substances that is released when they undergo a chemical reaction and transform
  15. 28. is a particle that consists of a nucleus of protons and neutrons surrounded by a cloud of electrons
  16. 29. is the scientific theory that matter is composed of particles called atoms
  17. 31. is the process by which heat is transferred from the hotter end to the colder end of an object
Down
  1. 1. produces heat
  2. 2. is a stable subatomic particle, symbol p , H⁺, or ¹H⁺ with a positive electric charge of +1 e
  3. 3. is the force resisting the relative motion of solid surfaces, fluid layers, and material elements sliding against each other
  4. 4. is the sum of potential energy and kinetic energy
  5. 8. a push or pull upon an object resulting from the object's interaction with another object
  6. 9. the unit of force
  7. 11. is energy related to forces on electrically-charged particles and the movement of those particles
  8. 12. is a nearly in compressible fluid that conforms to the shape of its container but retains a constant volume independent of pressure
  9. 17. A measure of the amount of matter contained in or constituting a physical body
  10. 18. is the energy transferred to or from an object via the application of force along a displacement
  11. 20. is the time rate at which an object is moving along a path
  12. 21. energy that does not move
  13. 22. the unit of power
  14. 26. is a subatomic particle, symbol n or n⁰ , which has a neutral charge, and a mass slightly greater than that of a proton
  15. 30. is any substance that has mass and takes up space by having volume