Sound of Music Learning check! #3. 1. Which has the longest wavelength ? A. Blue light B. Red light C. White light D. Green light.

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Grade 8 Science Unit 2: Optics

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Presentation transcript:

Sound of Music Learning check! #3

1. Which has the longest wavelength ? A. Blue light B. Red light C. White light D. Green light

2. Which would have the largest angle of refraction for the same angle of incidence from air to glass? A. Blue light B. Red light C. White light D. Green light

3. Which has the largest refractive index (air to glass) ? A. Blue light B. Red light C. White light D. Green light

4. Which is the optical centre of the lens below A. B. C. D.

5. Which light ray is not possible A. B. C. D.

6. The focal length is NOT A. The distance from the optical centre to the focal point B. Measured in cm C. Longer for weaker lenses D. The same either side of the lens

7. Converging lenses are NOT used in A. telescopes B. gyroscopes C. Penguin eyes D. Magnifying glasses

8. Which of the following would NOT act as a lens A. A helium balloon B. The surface of a cd C. A bubble of air in an ice cube D. A mass of metamorphic rock in a layer of igneous rock

9. Diverging lenses – which is false A. Produce upright images B. Produce images that are diminished C. Are used to correct long sight D. Are used to correct short sight

10. Which ray would not be vital in finding the position of an image? A. B. C. D.

11.Which of these rays emerges from the diamond? A. B. C. D. Incident ray

1. Which has the longest wavelength ? A. Blue light B. Red light C. White light D. Green light

2. Which would have the largest angle of refraction for the same angle of incidence from air to glass? A. Blue light B. Red light C. White light D. Green light RED REFRACTS ROTTEN; BLUE BENDS BEST

3. Which has the largest refractive index (air to glass) ? A. Blue light B. Red light C. White light D. Green light

4. Which is the optical centre of the lens below A. B. C. D.

5. Which light ray is not possible A. B. C. D.

6. The focal length is NOT A. The distance from the optical centre to the focal point B. Measured in cm C. Shorter for weaker lenses D. The same either side of the lens

7. Converging lenses are NOT used in A. telescopes B. gyroscopes C. Penguin eyes D. Magnifying glasses

8. Which of the following would NOT act as a lens A. A helium balloon B. The surface of a cd C. A bubble of air in an ice cube D. A mass of metamorphic rock in a layer of igneous rock

9. Diverging lenses – which is false A. Produce upright images B. Produce images that are diminished C. Are used to correct long sight D. Are used to correct short sight

10. Which ray would not be vital in finding the position of an image? A. B. C. D.

11.Which of these rays emerges from the diamond? A. B. C. D. Incident ray