Across
- 2. amount of whole waves pass one point in a second
- 7. same element diffrent number of neutrons
- 8. weak ionising power
- 9. energy that comes from motion
- 10. current multiplied by time
- 12. amount of time radioactive material takes to decay
Down
- 1. unit for energy
- 3. makes it hard for charges to pass through
- 4. caused by moving charges
- 5. f multiplied by d
- 6. distance between two simlar points close to eachother
- 11. distance divided by time