flipped notes1 for force and motion

Class: 9   Month: June                                       Flipped Notes Number: 09/Sci/09/01

Subject: Science                                                  Chapter: 09 – Force and laws of motion

Name: ____________________________________________

1.              Fill in the blanks:

a    Force is defined as _________________________________________________________

____________________________________________________________________________

____________________________________________________________________________

b    To change the state of an object from rest to motion or vice-versa, there has to a ________________________on the object.

c    Under the action of unbalanced forces, a body at rest________________________

_________________; a body in motion_________________________________________

d    A ball rolling on a horizontal plane keeps on rolling unless___________________

____________________________________.There has to be a ______________________

to cause change in an object from ____________ to set in ______________ or from

___________________ to bring to ____________________.

e    Newton’s first law states that a body at _________________ will remain at rest and a body in _______________ will continue in ________________ in a __________

________________ with a __________________ speed, unless it is compelled by an

________________ to changes its state of ____________ or of ____________________

f     Newton’s first law also tells us about an important property called ________

, according to which an object______________________________________by itself.

g    The greater the_________, the greater is the _____________, thus _________ is the

measure of inertia.

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Class: 9   Month: June                                       Flipped Notes Number: 09/Sci/09/01

Subject: Science                                                  Chapter: 09 – Force and laws of motion

h    Inertia can be defined as the __________________________ of an object to resist a

change in its _____________________________ or of ____________________________.

3.              Match the columns:

Column I		Column II
Example of Inertia of		acceleration
rest
Force applied on a		A book lying on table
body		does  not	change	its
		position  unless  it		is
		displaced by a force
Example of Inertia of		When a running bus
direction		stops  suddenly,  The
		passenger	tends	to

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Class: 9   Month: June			Flipped Notes Number: 09/Sci/09/01
Subject: Science			Chapter: 09 – Force and laws of motion
				lean forward.
		Newton’s first law		can	change		the
		says that Force is the		direction of a moving
		cause of		object
		Example of Inertia of		When	a	motor	car
		motion		makes	a	sharp	turn
				at  a  high  speed,  we
				tend to get thrown to
				one side

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