Physics Crossword

6. the rate of increasing velocity
8. the distance from one point on a wave to the same point on the next wave
9. the number of waves or vibrations made each second
11. the point around which something can turn or rotated
14. having an unstable nucleus that will emit particles and waves to achieve a more stable nucleus
15. the amount of matter in an object
16. a material that allows electricity to flow through easily

1. at 90 degrees to something
2. the movement of heat in a fluid as the fluid expands and rises when warmed
3. coil of wire in a bulb that glows when electricity passes through it
4. a material through which it is very difficult or impossible for electricity to flow
5. object often made of ice and rocks that orbits the Sun in an elongated orbit
7. complete conducting paths for electricity
10. a force between two solid surfaces trying to move across each other that tries to stop movement happening
12. containing no matter at all
13. small particles from which everything is made
17. a device used to observe waves and vibration