physics quest

INTRODUCTION
The topic ‘gravitation’ is very important in A -level exam.
This physics quest helps you in reviewing for the examination.
TASK
The activity consists of many questions related to ‘Gravitation’.
Read the questions carefully and try to answer the questions.
PROCESS AND RESOURCES
The physics quest contains one section. This section links to internet sites that will help you to find the answers.
Gravitation
1. State Newton’s law of gravitation?
2. What is the Expression for the force in Newton’s law of gravitation?
3. What are the factors depend on the gravitational force?
4. What is acceleration due to gravity?
5. What is the expression for the gravitational field strength (acceleration due to gravity)?
6. Is acceleration due to gravity same for all bodies? Why?
7. Name the scientist in the above photo?
This link helps you to find the answers of these questions and more information about gravitation.
http://en.wikipedia.org/wiki/Newton's_law_of_universal_gravitation
http://theory.uwinnipeg.ca/physics/circ/node7.html