Across
- 2. The time it takes for radioactive material to decay
- 6. An atom with a different number of neutrons
- 7. Flow of electric charge
- 8. The measurement of Potential Energy
- 10. The study of the nature and properties of matter and energy
- 12. The quantity of Matter
Down
- 1. Negative electric charge
- 3. The rate that velocity changes with time
- 4. An influence that causes an object to undergo a change
- 5. Positive electric charge
- 9. Unit of resistance
- 11. The rate of changes from it's postition