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Across 2. Energy and matter can be transferred 9. Amount of matter an object has 13. Mass * Velocity 14. SI unit of power 16. Objects collide and stick together 20. energy cannot be created or destroyed, only changed into a different form 23. Force * Time 24. Every action has an equal and opposite reaction 25. No energy or matter can be transferred 26. Energy can be transferred but matter cannot

Down 1. A push or pull 3. Objects collide and bounce apart 4. The sum of the final momentum is equal to the sum of the initial momentum 5. F=ma 6. Stored energy 7. State of balanced forces 8. Energy of an object due to its position or motion 10. Law of inertia 11. SI unit for energy and work 12. Energy of motion 15. M/s with direction 17. Force that is perpendicular to the surface an object touches 18. Force * Distance 19. Ability to do work 21. Tendency of an object to remain unchanged 22. Work/Time