3,913
edits
Changes
Jump to navigation
Jump to search
Line 52:
Line 52: − + − + − {| style="height:10px; float:right; align:center;"+ − |<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;"> − ''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> − |} − * '''Estimated Time''' - 30 minutes − * '''Materials/ Resources needed''' − * '''Prerequisites/Instructions, if any''' − #Good quality clock with high precision of measurement − #This experiment will be difficult to measure − * '''Multimedia resources''' − * '''Website interactives/ links/ simulations''' − * '''Process (How to do the activity)'''<br> − #Ask a child to drop a piece of chalk from terrace − #Start the stop clock as soon as the child drops it. − #Put off the clock as soon as the chalk touches the ground, note down the time taken − #Repeat the same expt with a stone,& calculate the time − − * '''Developmental Questions (What discussion questions)''' − #What was the time taken? − #Was it the same? − #Why would it be so? − #Do the students relate it to the equations of motion they have studied? − − '''Evaluation (Questions for assessment of the child)''' − − * '''Question Corner''' − − − ===Activity No #2 - Freely falling Object=== − − {| style="height:10px; float:right; align:center;" − |<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;"> − ''[http://karnatakaeducation.org.in/?q=node/305 Click to Comment]''</div> − |} − * '''Estimated Time''' - 30 minutes − * '''Materials/ Resources needed''' - Projector − * '''Prerequisites/Instructions, if any''' − * '''Multimedia resources''' − {|class="wikitable" − |- − |Image:http://upload.wikimedia.org/wikipedia/commons/thumb/0/02/Falling_ball.jpg/100px-Falling_ball.jpg − |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. − |} − * '''Website interactives/ links/ simulations''' − * '''Process (How to do the activity)''' − #Project the picture for the class and discuss the following questions − * '''Developmental Questions (What discussion questions)''' − #Where is the ball at time = 0? − #In the first (1/20)th of a second, what is the distance travelled by ball? − #In the second (1/20)th of a second, what is the distance travelled by ball? − #How does the distance fallen increase with time? − #What can you say about the motion? − * '''Evaluation (Questions for assessment of the child)''' − * '''Question Corner''' − Will the ball also attract the Earth and produce an acceleration?
no edit summary
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].
===Activity No #1 – Observe a freely falling body ===
===Activities===
#Activity #1 – Observe a freely falling body
#Activity #2 - Freely falling Object
==Concept #2 - Weight==
==Concept #2 - Weight==