1) 1. What is required to form a shadow? a) a) A light source, a transparent object, and a screen. b) b) A light source, an opaque object, and a screen. c) c) A reflecting object, a mirror, and a screen. d) d) Only a light source and a wall. 2) 2. When the friend (object) moves closer to the wall (screen), the shadow: a) a) Gets larger and darker. b) b) Stays the same size. c) c) Gets smaller and sharper. d) d) Disappears completely. 3) 3. If the friend stands still but you move the torch closer to them, the shadow on the wall will: a) a) Get smaller. b) b) Get larger. c) c) Move higher up the wall. d) d) Become brighter. 4) 4. A shadow is best described as: a) a) A reflection of the object. b) b) A patch of colour on the wall. c) c) An area of darkness where light is blocked. d) d) A form of light energy. 5) 5. When the torch is moved from a high position to a low position, the shadow on the wall moves; a) a) Downwards. b) b) To the right. c) c) Upwards. d) d) Stays in the same spot. 6) 6. Which property of light is demonstrated by the formation of a shadow? a) a) Light undergoes reflection. b) b) Light travels in a straight line. c) c) Light can be dispersed into colours. d) d) Light can be absorbed. 7) 7. If you move the torch horizontally to your friend's left, the shadow on the wall will move: a) a) To the left. b) b) Upwards. c) c) To the right. d) d) Away from the friend. 8) 8. The shadow formed on the wall is an example of a: a) a) 3D image. b) b) 2D projection. c) c) Coloured photograph. d) d) Transparent image. 9) 9. A transparent object (like a clear glass sheet) would cast: a) a) A very dark, sharp shadow. b) b) A large, fuzzy shadow. c) c) A brightly coloured shadow. d) d) Little to no shadow. 10) 10. In this experiment, which of the following is acting as the screen? a) a) The torch. b) b) The friend. c) c) The wall. d) d) The light rays.

JKC Std VI Concept : Formation of shadow

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