Task Cards Properties of Light Kit.docx - Properties of Light Activity 1 Peep Hole Materials Light source ruler three(or more cards hole-punch dark

Task Cards Properties of Light Kit.docx - Properties of...

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Properties of Light Activity 1: Peep Hole Materials: Light source, ruler, three (or more) cards, hole-punch, dark surface (construction paper, shirt, wall, etc.) Procedure: a) Using the hole-punch make a hole in each the cards in approximately the same spot b) Fold each card in such a way that it will stand up and you can still see the hole c) Line up the cards at 3cm intervals in line with the dark surface d) Place light source at one end of your line of cards directed at the cards e) Observe the dark surface if: you cannot see a light manipulate/adjust the cards until you can; you can see a light move the cards further apart and closer together. What happens to the light? Does the light move? Does the light change in shape or size? Discuss and record your observations. f) Slowly turn the last card. Observe the light on the dark surface. How does the light change? Does the light move? Does the light change in shape or size? Discuss and record your observations with words. Assessment Question: (of learning) Is there a way to change the direction of light? (reflection, refraction) ACTIVITY 2 Properties of Light Activity: Mirror Maze Materials: Laser pointers, flash lights, collection of plane and curved mirrors, various obstacles (classroom items), blank paper/tracing paper Safety: Goggles (polarized) – lasers emit high density congruent light which can have adverse effects on eyesight, Glass Hazard – Mirrors are often made of glass and make break if handled roughly or knocked over leaving sharp edges Procedure: a) Make a target on the blank paper b) Place a number of obstacles between the laser or flashlight and the target.
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c) Place the mirrors in sequence so the light hits paper. Find Angle of Incidence and the Angle of Reflection for each plane mirror used in the maze. d) Reconfigure the obstacles and try again. Consider which type of mirror you used most? Plane or Curved? e) Build a maze for another group and have another group build on for you. f) Take out all the Plane Mirrors and try to complete the maze with just curved mirrors. What did you have to think about when using only curved mirrors? Ext) using a flashlight as the light source, complete a Mirror Maze with circular targets and use the properties of concave and convex mirrors to change the size of the beam to match the target. Ext) using a flashlight as the light source make a shadow puppet silhouette and trace it at the end of the Mirror Maze . Make the image smaller or larger. Var) skip step f) and provide only plane mirrors Assessment Question: (as learning) After experimenting and investigation of the properties of mirrors
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give three possible applications for mirrors, one for each type of mirror. ACTIVITY 3 Properties of Light Activity: Lose a Glass in a Glass Materials: An (unmarked if possible) Pyrex Jar, A smaller (unmarked if possible) Pyrex Jar that will fit in the first Jar, glycerol or 75% glucose/water solution Safety: Goggles, Paint Thinner is poisonous if consumed, glucose solution may require heat to make it supersoluable and should be make before hand
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  • Spring '14
  • DaleCDeubler

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