Class: 9 Month: June Flipped Notes Number:
09/Sci/09/03
Subject: Science Chapter: 09 – force and laws of
motion
Name:
____________________________________________
1.
Fill in
the blanks:
a
Newton
observed this phenomenon with every ___________ applied to any body, and
realized that forces are always in ___________________. He termed them as
________________ and
_______________________.
b According to Newton’s third law, every ___________________
has its ____________
and
_________________________reaction.
c According to law of conservation of
_______________________, when two or more
_____________ act upon one another,
their total _____________________ remains
______________________ or
_____________________ provided no
_________________
are acting
2.
Match the
columns for the following case:
A truck of mass m1 and a car of mass m2
are moving in the same direction with velocities u1 and u2 respectively. Let truck collides
with the car for a short time t. After this short collision, let the velocity
of truck become v1 and that of the car is v2.
|
Column I
|
|
Column II
|
||||
|
Total momentum of
|
|
F1
= m2
x (v2
– u2)
|
||||
|
|
|
|
|
|
|
|
|
truck,
car system
|
|
|
|
t
|
||
|
before
collision
|
|
|
|
|
|
|
|
|
|
|
||||
|
Total momentum of
|
|
F2
= m1
x (v1
– u1)
|
||||
|
truck,
car system
|
|
|
t
|
|
|
|
|
after
collision
|
|
|
|
|
|
|
|
|
|
|
||||
|
Force F1 exerted by
|
|
m1v1 + m2v2
|
||||
|
the
truck on the car
|
|
|
|
|
|
|
|
|
|
|
||||
|
force F2 exerted by
|
|
m1u1 + m2u2
|
||||
|
the car on the truck
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
1
|
Class: 9 Month: June
|
Flipped Notes Number: 09/Sci/09/03
|
||
|
Subject: Science
|
Chapter: 09 – force and laws of
motion
|
||
|
|
|
|
|
2
No comments:
Post a Comment