Across
- 1. a form of energy which causes the sensation of sight in our eyes
- 4. non-conductors of heat
- 6. a liquid which produces cooling by evaporation
- 7. a form of matter in which the force of cohesion between the constituent particles is maximum
- 8. a lens which always forms a diminished,erect and virtual image
- 10. the quantity of heat required to raise the temperature of one gram of water by one degree celsius
- 11. the colour which deviates the most when a ray of light travels through a glass prism
- 12. converging lens
- 14. heat lost is equal to heat gained
- 17. coolant used in a car radiator
- 18. SI unit of temperature
- 19. a very good insulator used for making heating elements for electric iron
- 20. thermometric liquid in a laboratory thermometer
Down
- 2. ___________space the vacant space between the molecules in any sample of matter
- 3. an instrument used to measure the temperature of an object
- 5. shortsightedness
- 9. force of attraction between molecules of the same substance
- 13. outward bending of rays after suffering refraction
- 15. the force of attraction between the molecules of two different substances
- 16. the degree of hotness or coldness of a body