Gravity and Electromagnetism

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Across
  1. 5. The same poles of two magnets _____
  2. 6. Invisible force that attracts one object with mass to another object with mass
  3. 8. As two objects get farther away, the gravitational force _______
  4. 10. If these are all spinning in the same direction, a magnet is formed
  5. 12. The opposite poles of two magnets _____
  6. 13. This scientist first began discussing gravity (the answer is his last name)
  7. 15. Tendency of an object to remain in motion
Down
  1. 1. These occur due to the gravitational pull of the Sun and the Moon on Earth's oceans
  2. 2. A planet's path around the sun in our solar system
  3. 3. Electric current produces a _______ field
  4. 4. A push or a pull on an object
  5. 7. When an object speeds up, it ______
  6. 9. A measure of the amount of matter in an object
  7. 11. If you increase the number of coils or wraps in an electromagnetic, its magnetic field will be _____
  8. 14. A measure of the gravitational force on an object
  9. 16. Third planet from the sun, only planet in our solar system that can support life