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For further details and derivation click [http://karnatakaeducation.org.in/KOER/en/index.php/Notes_on_Acceleration_due_to_gravity here].

For further details and derivation click [http://karnatakaeducation.org.in/KOER/en/index.php/Notes_on_Acceleration_due_to_gravity here].
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===Activity No #1 – Observe a freely falling body ===
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===Activities===

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#Activity #1 – Observe a freely falling body
{| style="height:10px; float:right; align:center;"
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#Activity #2 - Freely falling Object
|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
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''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
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|}
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* '''Estimated Time''' - 30 minutes
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* '''Materials/ Resources needed'''
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* '''Prerequisites/Instructions, if any'''
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#Good quality clock with high precision of measurement
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#This experiment will be difficult to measure
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* '''Multimedia resources'''
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* '''Website interactives/ links/ simulations'''
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* '''Process (How to do the activity)'''<br>
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#Ask a child to drop a piece of chalk from terrace
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#Start the stop clock as soon as the child drops it.
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#Put off the clock as soon as the chalk touches the ground, note down the time taken
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#Repeat the same expt with a stone,& calculate the time
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* '''Developmental Questions (What discussion questions)'''
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#What was the time taken?
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#Was it the same?
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#Why would it be so?
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#Do the students relate it to the equations of motion they have studied?
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'''Evaluation (Questions for assessment of the child)'''
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* '''Question Corner'''
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===Activity No #2 - Freely falling Object===
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{| style="height:10px; float:right; align:center;"
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|<div style="width:150px;border:none; border-radius:10px;box-shadow: 5px 5px 5px #888888; background:#f5f5f5; vertical-align:top; text-align:center; padding:5px;">
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''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div>
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|}
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* '''Estimated Time''' - 30 minutes
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* '''Materials/ Resources needed''' - Projector
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* '''Prerequisites/Instructions, if any'''
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* '''Multimedia resources'''
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{|class="wikitable"
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|-
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|Image:http://upload.wikimedia.org/wikipedia/commons/thumb/0/02/Falling_ball.jpg/100px-Falling_ball.jpg
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|The image on the side, spanning half a second, was captured with a stroboscopic flash at 20 flashes per second. During the first 1⁄20 of a second the ball drops one unit of distance (here, a unit is about 12 mm); by 2⁄20 it has dropped at total of 4 units; by 3⁄20, 9 units and so on.  Check [http://en.wikipedia.org/wiki/Equations_for_a_falling_body here] for a more detailed description.
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|}
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* '''Website interactives/ links/ simulations'''
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* '''Process (How to do the activity)'''
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#Project the picture for the class and discuss the following questions
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* '''Developmental Questions (What discussion questions)'''
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#Where is the ball at time = 0?
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#In the first (1/20)th of a second, what is the distance travelled by ball?
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#In the second (1/20)th of a second, what is the distance travelled by ball?
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#How does the distance fallen increase with time?
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#What can you say about the motion?
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* '''Evaluation (Questions for assessment of the child)'''
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* '''Question Corner'''
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Will the ball also attract the Earth and produce an acceleration?

==Concept #2 - Weight==

==Concept #2 - Weight==
3,913

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