Across

Down

3. Reagan is negative on election poster (8)

8. Strong I Aluminium gives type of energy (9)

9. Shout zero Watts colour of Sodium spectrum (6)

10. Sounds like a question about units of power (5)

12. Hesitates after a while to be conserved in collisions (8)

15. Greek letter gives estimated time of arrival (3)

16. Ohm says this is V backwards (2)

18. Student worker at charged particle aluminium is global (13)

20. Sounds like you’re not ready for this force (6)

23. Silver gets east for a long time (3)

24. Neutral particle sounds like a remake of sci fi  movie (7)

26. Gravitational force can be fatal (10)

29. No lard stirs terminator star (6)

30. Sams confused with fundamental quantity (4)

32. Beta rotter hides card that’s not physics (5)

33. First of every man’s food is measured in Volts (3)

34. You can make bones about this (7)

35. Diamonds are a state of water (3)

37. The quarks in a proton confuses riot (4)

38. Driven notion hides Interlocking circles (4)

39. Add equals for Ohm’s law formula (3)

40. Can albert hide waterway? (5)

42. Tea mix shouldn’t be done in a laboratory (3)

43. Doppler for example (6)

45. Radioactive material in extra donut (5)

46. Latices roll up to give collision (7)

48. Babe table hides Greek character (4)

49. The reason for 43 (5)

50. We riders tangle positive cables (3,5)

1. Say what it is in southern gallery (5)

2. Zeros and these is binary (4)

3. Chemical in Pele mention (7)

4. Object of many momentum problems goes after horse (4)

5. Node and code are examples of these words (7)

6. Dull Loses first and follows North to nothing (4)

7. Left in the shed loggerpro does it for you (8)

8. Comic book punch meets hospital series that works overtime (5)

13. A trap for resultant force (3)

14. Mixes cats it doesn’t move (6)

17. internal assessment doesn’t react and doesn’t want to move (7)

19. Modelling in stages gets an extra T in wrong spelling (10)

21. Spinning top for the physics lab (9)

22. Abbreviated French information and communication technology gets charged atom to oppose motion (8)

23. Positively a done deal (5)

25. Brown man gets sin over ‘cos (7)

27. Elton’s Miss Jean gets left perpendicular (6)

28.Freer scene mixes with EE requirement (10)

30. Dull finish with English queen is made of atoms (6)

31. ET circle makes a circuit (8)

36. Space as entity hides end (5)

39. Quantity with direction confused over CT

41. Thomas loses his head to give Greeks smallest parts (5)

44. Used in dance but not a physics measurement (4)

47. Large electric device primarily gives efficient bulb (3)