Practice Test Questions LIGHT Year 10 Science Practice Test Questions LIGHT

Chocolate for the winning team Chocolate Challenge Three teams In your teams, work through the questions Write the NUMBER of the question AND the ANSWER on your paper Hand it in at the end YOU HAVE 6 minutes on each SLIDE Once this 6 minute is up, the slide will change Chocolate for the winning team

Light 1 1. How fast does light travel? 2. We see things because light is reflected into our eyes. What part of the eye is full of light receptors and the point where light is focused onto? 3. What is the difference between a luminous and non luminous object? 4. How is a shadow formed?

Light 2 5. What seven colours make up white light? 6. What are the primary colours? 7. What is happening to the colours when something appears white? 8. What is happening to the colours when something appears black? 9. What is happening to the colours when something appears Magenta (purple)?

Light 3 10. What colour would a red apple appear through a green filter? 11. What colour would a yellow lemon look through a green filter? 12. When light is reflected, what two angles are always equal to each other? 13. What is the name for the line which goes directly between each of the angles?

Light 4 14. What is the name of the ray which is incoming to a reflective surface? 15. What is the name of the ray which is outgoing from a reflective surface? 16. When light hits a surface, it will always bounce off at the same…..? 17. What kind of surfaces have a clear reflection?

Light 5 18. What kind of surfaces have a diffuse reflection? 19. Refraction occurs when…? 20. Does light travel faster or slower through more dense mediums? 21. When travelling through a less dense medium, does light bend towards or away from the normal?

Light 6 22. A real life example of refraction is… 23. Is the lens within our eyes convex or concave? 24. What is the name of the clear outer covering of the eye? 25. What is the name of the fluid which fills the front of the eye? 26. That fills the back of the eye?

Light 7 27. What is the name of the nerve which carries the signals to the brain from the retina so we can understand what we see? 28. What is the name of the spot on the retina where no light receptors are located? 29. What is the iris made of? 30. What is the function of the iris?