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Universal Law of Gravitation (view source)
Revision as of 16:46, 28 October 2020
, 16:46, 28 October 2020→Activity No #2 Mass and Weight
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===Activity No #2 Mass and Weight===
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−* '''Estimated Time''' - 30 minutes
−* '''Materials/ Resources needed'''
−#A piece of iron
−#A piece of wood
−#A ball of yarn or cotton
−* '''Prerequisites/Instructions, if any'''
−* '''Multimedia resources'''
−* '''Website interactives/ links/ simulations'''
−* '''Process (How to do the activity)'''
−#Hold each object in your palm
−#What do you feel when you hold each one of them (ask them to answer as light--->heavy)
−* '''Developmental Questions (What discussion questions)'''
−#Is there a difference when you hold each of them?
−#Is this due to inertia? Am I changing anything when I am holding?
−#What might this difference be due to?
−#This is due to a property called weight which is because the mass of this object interacts with another mass - that of the earth. We call this weight
−#We will study more about this - but mass also interacts with other masses; this is called gravitational property
−#The Earth is not touching the object, but still its mass has an effect on the mass on my hand
−#Gravity can act at a distance between two masses
−* '''Evaluation (Questions for assessment of the child)'''
−#Does mass have both inertial and gravitational property?
−#Does gravitational property depend on size? Or mass?
−* '''Question Corner'''
−#If an object has inertia, when I drop the object why does it fall?
−#Do you feel the gravitational effect of the Earth?
* '''Question Corner'''
* '''Question Corner'''
#How can I tell that an object has mass or not?
#How can I tell that an object has mass or not?
−==Concept #2 - Newton's law of universal gravitation==
==Concept #2 - Newton's law of universal gravitation==
