Physics Revision, year 11, Feb 2015 4.0 / 5 based on 2 ratings ? Physicsa range of different topicsGCSECCEA Created by: Rebekah136Created on: 22-02-15 15:36 53972418610 Across 1. what partical has a neutral charge (7) 4. what radioactivity is a wave (5) 5. what is it called when a radioactive substance falls by half (4, 4) 6. how do you find the value of an equation on a graph (8) 9. what radioactivity is a high speed electron that comes from the nucleus (4) Down 2. what is used to measure radioactivity (2, 4) 3. name the force that would make a boat slow down (8) 7. how to find the distance on a velocity time graph (4) 8. what particle has a positive charge (6) 10. what happens if a radioactive nucleus is unstable. (5)
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