1) Rate of change in distance a) Relative speed b) Speed c) acceleration d) Displacemnt 2) Image can be received on a screen a) Real image  b) Convex mirror  c) Diverging rays d) Virtual image 3) Total distance over total time a) Relative speed b) Regular speed c) Average speed  d) Regular acceleration 4) Concave lens a) Diverging lens b) Plan mirror c) Converging mirror d) Relative speed 5) Has magnitude only a) Force b) Displacement   c) Mass   d) Velocity 6) Has magnitude and direction a) Speed b) Mass  c) Time  d) Velocity 7) Always form erect and equal image a) Plan mirror b) Convex lens c) Concave mirror d) convex mirror 8) Speed of object relative to observer  a) Relative speed  b) regular speed c) real speed  d) uniform speed 9) Identify the speed  a) Acceleration  b) uniform speed  c) spectrometer  d) Speedometer  10) mid point in the surface of the mirror  a) optical center  b) Pole of the mirror  c) Focus  d) Focal length 11) Is .............. used to correct the short sightedness a) Convex lens b) concave lens c) concave mirror d) convex mirror 12) Contact lenses can stick to the eye ..........by eye fluid a) Retina b) Cornea c) Lens d) optic nerve 13) A concave lens with a focal length 20 cm object placed at 40 cm, the image formed at ......... a) 40 cm b) 20 cm c) 10 cm d) 5 cm 14) The building unit of universe is a) Planets b) stars c) galaxies d) moons 15) The solar system located on one of the ...........arms of the milky way galaxy a) spiral b) oval c) striaght d) circular 16) the biggest star that an be seen by people on Earth is ........ a) Sun b) Jupiter c) Earth d) Moon 17) The theory explained how the universe is formed is .........theory a) crossing star b) nebular c) solar nebular d) big bang 18) The scientist established the nebular theory is ....... a) Newton b) chamberlain c) laplace d) Moulton 19) Theory assumed that the solar system was a glwoing gas sphere a) Nbular b) crossing star c) Modern d) Big bang 20) The founder of the modern theory is ........... a) Chamberlian b) Moulton c) Alfred Hale d) Laplace 21) The Hubble telescope was launched in April in ........... a) 1905 b) 1990 c) 1995 d) 1959 22) Optical piece that form an equal inverted image for the body is ......... a) spherical mirror b) plane mirror c) convex lens d) concave lens 23) A concave mirror has focal length of 10 cm the double of radius equal .......... a) 10 cm b) 20 cm c) 30 cm d) 40 cm

Prep 3 .Game Quiz show

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النمط البصري

الخيارات

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