Light, Shadow and Eclipses
Q.1. What is light?
Q.2. Name the main source of natural light for us?
Q.3. Name some artificial or man made sources of light?
Q.4. What are the uses of light?
Q.5. How do we see objects around us?
Q.6. What is the name given to a substance through which light can travel?
Q.7. What are transparent substances? Give some examples.
Q.8. What are translucent substances? Give some examples.
Q.9. What are Opaque objects? Give some examples.
Q.10. What is a shadow?
Q.11. What are the necessary requirements for the formation of a shadow?
Q.12. On what factors does the size and shape of a shadow depend?
Q.13. Where is the shadow of an object cast?
Q.14. If the sun rises in the East, in which direction will its shadow be cast?
Q.15. What are eclipses?
Q.16. At what time the shadow is the longest?
Q.17. What is the eclipse of the sun called?
Q.18. What is the eclipse of the Moon called?
Q.19. How does a solar eclipse occur?
Q.20. How does a lunar eclipse occur?
Q.21. How is the moon visible to us?
Q.22. Solar eclipse occurs on which day?
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