Across
- 4. the force associated with electric and magnetic fields
- 5. the radiation that comes from space and is mostly beta and gamma radiation
- 7. the attractive force that exists between any two objects that have mass
- 8. the element particle that make up lager particles such as protons and neutrons
- 9. the force that changes the type of a subatomic particle
- 10. the radiation that comes from the Earth, typically from the decay products of uranium such as thorium, radium, and radon
- 12. carriers of the weak nuclear force that changes the flavor of quarks during beta decay
- 13. the radiation that is constantly present in the environment
- 15. the law that states that the force of gravity occurs between all masses and over any distance
- 17. the attractive force that holds subatomic particles together in the nucleus of an atom
- 20. the model of the solar system in which the plants orbit around the Sun
Down
- 1. the spontaneous process that occurs when atomic nuclei emit high energy particles
- 2. a constant of proportionality between the gravitational force mass and distance
- 3. reaction that involves the nuclei of atoms and can release large amounts of energy
- 6. a property of quarks that is related to the strong nuclear force
- 11. an object on orbit around another object
- 14. an instrument that uses electromagnetic fields to accelerate charged particles at speeds close the speed of light and cause them to collide and form other particles or atoms
- 16. the carrier of the strong nuclear force that blinds quarks for different color changes together
- 18. an oval defined by two fixed points
- 19. one of two fixed points that is used to define an ellipse