The document outlines basic concepts in physics related to force, gravitation, and gravity, including definitions and mathematical formulas. It explains Newton's laws related to these forces, such as the universal law of gravitation, and discusses the gravitational constant. Examples are provided to illustrate the application of these concepts in real-world scenarios.

1. Force Class 10 | SEE Physics
Notes
Posted on July 10, 2018 by Viral Harry
Contents [hide]
 1 Force
 2 Grav itation
 3 Grav ity
 4 Univ ersal law of Gravitation
 5 Univ ersal Gravitationalcontact ( G )
o 5.1 Share this:
o 5.2 Related Posts
Force
The f orce is the external f actor which changes or tends to change state of object.
 The def initin a f orce is giv en by f irst law of motion giv en by newton
 Its measurement is giv en by second law of motion
 F=m.a = Mass x acceleration
 Its SI unit is Newton.
Gravitation
The f orce of attraction between two bodies is called – Grav itation
Diagram:
 Grav itation is the f orce and its unit is Newton (N)
 It is denoted by F
 F=G M1 M2
dz
Where ,

2. M1 & M2 = Mass
d= distance
G= univ ersal grav itational constant
=6.61×10¯¹¹Nm²kg-²
Gravity
The grav ity is the f orce of attraction one should be bodies in which at least one should be heav enly body .
Diagram:
 F = GMm⁄d²
Where ,
M = Mass of heav enly body
m =Mass of object
d= distance
Example
a) moon and ocean
b) Earth and aeroplane
c) Earth and sun
d) Earth and moon
 Example of grav itation
a) table & book
b) Pen & copy
c) Tree & building

3. d) v ehicale & road
e) Nucleus & electron, etc
Universal law of Gravitation
It is giv en by sir I . Newton .
a) The Force of attraction is the directly proportional to the product of masses of two bodies
b) The Force of attraction is the inv ersely proportional to the square of distance between
From a & b
Where ,
d = distance
G = Univ ersal grav itational constant
= 6. 67x 10–¹¹ Nm² kg –²
Universal Gravitational contact ( G )
we known that ,
The univ ersal grav itational constant (G) is the f orce of attraction when two bodies of mass 1kg is a aparted by 1m
G= F x d²⁄ M1 M2

4. = Nm²⁄kg² = Nm²/ kg²
= Nm² kg–²
Read Also:
Introduction to Statistics
NEB Grade 11 Result Published 2075
What is empirical f ormula? Grade XII | Chemistry
NEB Grade 12 Result 2075 Science, Management, Humanities and Education Check Result
TSC (Teacher Serv ice Commission) Open Vacancy in Lower Secondary Lev el and Secondary Lev el Total of 2700 Positions
SEE Result 2074/ 2075 has been published | Check y our result