The Energy of Collision

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Across
  1. 5. A __________ is a brain injury caused by a bump or blow to the head.
  2. 6. The best football players use many __________ to tackle correctly.
  3. 7. Going for the __________ is the best way to stop a player without either player getting hurt.
  4. 9. When football was first invented, the players id not wear any kind of __________ gear at all.
  5. 11. __________ have been designed to protect their skulls from the force of an impact.
  6. 12. Collisions often happen in sport because of the speed and __________ of movements in the games.
Down
  1. 1. __________ energy is the energy of motion.
  2. 2. A __________ occurs any time when an object runs into another object.
  3. 3. When objects collide __________ is transferred.
  4. 4. NFL stands for the National Football __________.
  5. 8. The kinetic energy of a collision causes the brain to __________ in its skull and possibly cause damage.
  6. 10. The NFL adopted a “targeting” rule to keep players safe from __________ injuries