GCSE Physics – Lenses

Last updated: 12/05/2020
GCSE Science CIE – Combined science extended Properties of waves, including light and sound GCSE Physics – Lenses

Learning Objectives

-I can describe the circumstances in which a converging lens should be used
-I can construct a ray diagram for a converging lens
-I can describe the image formed by a converging lens
-I can describe the circumstances in which a diverging lens should be used
-I can construct a ray diagram for a diverging lens
-I can describe the image formed by a diverging lens

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  1. Current
  2. Review
  3. Answered

  1. Where is the principle focus?

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  2. What letter do we use to label principle focus?

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  3. What is the distance from the centre of the lens to the principle focus called?

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  4. If a lens is made more curved, what happens to its power?

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  5. If a lens is made more powerful, what happens to focal length?

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  6. What is the axis of a lens?

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  7. What happens if any light ray passes through the axis of a lens?

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  8. How do lenses form images?

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  9. Where are images formed?

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  10. What are the two types of image that can be formed by lenses?

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  11. What is a virtual image?

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  12. What can’t a virtual image do?

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  13. What is a real image?

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  14. What can a real image do?

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  15. What is the name for rays of light being brought together?

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  16. What is a convex lens?

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  17. What is the other name for convex lenses?

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  18. What is the principle fous of a converging lens?

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  19. How are convex lenses drawn in ray diagrams?

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  20. What does a converging lens do to rays of light?

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  21. What is the image produced from an object nearer than F from a coverging lens like?

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  22. What is the image produced from an object at 2F from a coverging lens like?

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  23. What is the image produced from an object between F and 2F from a coverging lens like?

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  24. The image produced by a convex lens can be…

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  25. What is the name for rays of light spreading out?

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