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Science of Light and Eye

Explore the concepts of light and its interaction with the eye, including the direction of light, refraction, eye parts, lens types, visual defects, and the electromagnetic spectrum.

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Science of Light and Eye

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  1. Science Light and Eye 6 1 2 3 4 5 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

  2. answer 1. Draw a normal and complete the direction of the beam of light?

  3. answer 2. When light enters glass at an angle, it bends .................... the normal Towards

  4. answer Label the parts of the eye. A B C A Cornea B Retina C Optic Nerve D Lens D

  5. answer Label A and B _____A___ A Pupil B Iris ______B__

  6. answer 5. Name the two types of lens. Concave lens Convex lens

  7. answer 6. Two common eye defects are.. Short sighted and long sighted

  8. answer 7. Is this person long sighted or short sighted? Short sighted S Casey Int1 Biology

  9. answer 8. Is this person long sighted or short sighted? Long sighted

  10. answer 9. What type of lens can correct long sight? Focuses behind the retina A convex lens bends the rays of light so that they focus on the retina

  11. answer What type of lens can correct short sight? Light focuses in front of the retina A concave lens bends the rays of light so that they focus on the retina

  12. answer 11. What is the proper name for a rainbow? Visible spectrum

  13. answer 12. Which colour is refracted (bent) the most going through a prism? Violet

  14. answer 13. What section of the electromagnetic spectrum is used to detect broken bones? X Rays

  15. answer 14. What detector is required to pick up radio and TV waves? An aeriel.

  16. answer What section of the electromagnetic spectrum do we detect as heat radiation? Infra-red.

  17. answer 16. What colour do you get if you mix red light and green light? Yellow

  18. answer 17. What are the 3 primary colours of light? Red , Green and Blue

  19. answer What is beyond violet on the electromagnetic spectrum Ultraviolet

  20. answer List the visible spectrum • Red • Orange • Yellow • Green • Blue • Indigo • Violet

  21. answer 20. What does a convex lens do to beams of light? Makes them converge (meet at a point)

  22. answer 21. Name point X? X Focal point

  23. answer 22. What happens to the focal point if a thicker lens is used? Focal point • The focal point is closer to the lens

  24. answer 23. What does a convex lens do to beams of light? Makes them diverge (go further apart)

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