PHYSICS : CHAPTER GRAVIATION AND
GRAVITY( A LEVEL )
• 🔹 What’s included:
Laws of Falling Bodies (Galileo)
Newton’s Law of Universal Gravitation
Dimensional Analysis of G
Acceleration due to Gravity (g)
Variation of g with:
Height (Altitude)
Depth
Earth’s Rotation
Density-based gravity relations
Neutral Point (Gravitational Equilibrium)
Planetary motion & SHM concept
Important board questions (Dhaka, Rajshahi, Comilla, Barisal, Chittagong)
🔹 Key Features:
Step-by-step mathematical derivations
Clean and structured explanation
Exam-focused important formulas
Visual diagrams for better understanding
Shortcut methods for quick solving
, PHYSICS (A LEVEL) : Graviatrion and
Gravity
This is a complete and well structured note on Graviation and Gravity chapter. This
content is totally genarated from my experiences.
Book Sources : Fundemental of Physics
PAGE 1 : THE LAWS OF FALLING BODIES
Formulated by Galileo Galilei for bodies falling freely under gravity from rest
without any air resistance:
1. First Law: All bodies falling freely from rest from the same height traverse equal
distances in equal intervals of time.
2. Second Law: The velocity (v) acquired by a body falling freely from rest in a given
time (t) is directly proportional to that time.
v∝t
3. Third Law: The distance (h) traversed by a body falling freely from rest in a given
time (t) is directly proportional to the square of that time.
h ∝ t²
, PAGE 2: MATHEMATICAL APPLICATION OF
FALLING BODIES
• Problem:
• If an object falls freely from rest from a certain height, what is the ratio of the
distances traversed by the body only during its 1st, 2nd, and 3rd seconds?
• Motion Diagram Profile:
• t = 0 s (Rest, h = 0)
• │
• t = 1 s ● ◄─── Total h(1) = 1m └───► Traversed in 1st second ONLY = 1m
• │
• │
• t = 2 s ● ◄─── Total h(2) = 4m └───► Traversed in 2nd second ONLY = 3m
• │
• │
• │
• │
• t = 3 s ● ◄─── Total h(3) = 9m └───► Traversed in 3rd second ONLY = 5m
GRAVITY( A LEVEL )
• 🔹 What’s included:
Laws of Falling Bodies (Galileo)
Newton’s Law of Universal Gravitation
Dimensional Analysis of G
Acceleration due to Gravity (g)
Variation of g with:
Height (Altitude)
Depth
Earth’s Rotation
Density-based gravity relations
Neutral Point (Gravitational Equilibrium)
Planetary motion & SHM concept
Important board questions (Dhaka, Rajshahi, Comilla, Barisal, Chittagong)
🔹 Key Features:
Step-by-step mathematical derivations
Clean and structured explanation
Exam-focused important formulas
Visual diagrams for better understanding
Shortcut methods for quick solving
, PHYSICS (A LEVEL) : Graviatrion and
Gravity
This is a complete and well structured note on Graviation and Gravity chapter. This
content is totally genarated from my experiences.
Book Sources : Fundemental of Physics
PAGE 1 : THE LAWS OF FALLING BODIES
Formulated by Galileo Galilei for bodies falling freely under gravity from rest
without any air resistance:
1. First Law: All bodies falling freely from rest from the same height traverse equal
distances in equal intervals of time.
2. Second Law: The velocity (v) acquired by a body falling freely from rest in a given
time (t) is directly proportional to that time.
v∝t
3. Third Law: The distance (h) traversed by a body falling freely from rest in a given
time (t) is directly proportional to the square of that time.
h ∝ t²
, PAGE 2: MATHEMATICAL APPLICATION OF
FALLING BODIES
• Problem:
• If an object falls freely from rest from a certain height, what is the ratio of the
distances traversed by the body only during its 1st, 2nd, and 3rd seconds?
• Motion Diagram Profile:
• t = 0 s (Rest, h = 0)
• │
• t = 1 s ● ◄─── Total h(1) = 1m └───► Traversed in 1st second ONLY = 1m
• │
• │
• t = 2 s ● ◄─── Total h(2) = 4m └───► Traversed in 2nd second ONLY = 3m
• │
• │
• │
• │
• t = 3 s ● ◄─── Total h(3) = 9m └───► Traversed in 3rd second ONLY = 5m
