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- Slide: 1
- See now the books fell down. So there is no physical contact between the books and my hand, it is called Non-Contact force.
- Yes Mom, I am able to relate these with my textbook.
- Lexi, I am able to stand because the gravity is pulling me towards the ground.So, it can be also called gravitational force . The objects need not always be in the physical contact.
- Slide: 2
- Lexi, do you feel your hair being pull by the TV screen?
- It's ok. Darling. It happen ed because of frictional force. it is the force that opposes motion when two or more objects are in contact move in respect each other.
- Mom, I tripped over the books. Ooouuch!!It Hurts..
- Yes Mom, I do
- It is because of electrostatic force. Before you came into the room, I was watching TV , So , the TV is changed body and your hair is uncharged hence. it was attracting your hair
- Is it still hurting?
- Slide: 3
- Mangnetic force , the force exerted by a mangnet or mangnetic substances,
- You're welcome Lexi
- It's better now mom, there are 2 more forces left
- I will explain them orally as I don't have materials to show you as examples.
- Thank you so much.Mom. I understand force and types of force properly by the examples you gave me today.
- Mechanical force , the force exerted by machines. Ex- engine of a car closing and opening of door
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