1							2			3
4
															5						6
	7					8
9
																		10
11									12
																		13
					14			15
											16
										17
		18
													19
	20
					21		22								23
		24											25
		26

Across 2. falling only due to force of gravity 4. stored up energy 5. liquid that reduces humana body's resistance to 100ohms 8. sliding force has some relation with cats 9. this restrains the electrical current 10. measurement of voltage 11. most basic unit of a substance 12. thermal or heat radiation 14. vibration of light in only one plane 17. all waves are produced by 18. path along which electrons flow 20. it can be neither created nor destroyed 22. Speed of light in a medium is determined by _______ density 24. force applied to a machine 25. direction-less measurement 26. represents resistance; a Greek alphabet

Down 1. bending of waves on obstacles 3. "on the _____________ of moving bodies" Einstein's third major paper 6. collision without change in shape 7. positive ions are produced by the deficiency of _____ 13. laziness in motion, product of mass and velocity 15. measures electric current 16. energy possesed by a moving body 18. mirror curved inside 19. energy is measured in 21. "through" the lowest part of a wave 23. absorption of all spectrum colours