Qasim Tariq 11-01-2020Notes

After studying this unit, the students will be able to:

  • state Newton's law of gravitation.
  • explain that the gravitational forces are consistent with Newton's third law.
  • explain gravitational field as an example of field of force.
  • define weight (as the force on an object due to a gravitational field.)
  • calculate the mass of Earth by using law of gravitation.
  • solve problems using Newton's law of gravitation.
  • explain that value of g decreases with altitude from the surface of Earth.
  • discuss the importance of Newton's law of gravitation in understanding the motion of satellites.
  • gather information to predict the value of the acceleration due to gravity g at any planet or moon's surface using Newton's law of gravitation.
  • describe how artificial satellites keep on moving around the Earth due to gravitational force.

Post Tags:

  • 9th Physics Notes
  • 9th Physics Chapter 5
  • Matric Notes
  • Class IX Helping Notes
  • Matriculation Notes
  • Matric Part-1 Notes

Comment here:

Aim and Purposes:

Education is very expensive nowadays. Our only purpose is to educate everyone for free. We want to bring an educational revolution. Our aim is that nobody should be left behind, everyone should get knowledge and quench his thirst for knowledge. For this noble cause, we have hired a lot of experienced teachers and technical experts, who are serving you without any cost. If you want to be a part of this noble cause, you can contact us at

Report a mistake:

EducatedZone has been working for the help of students since 2017. With the passage of time, many senior students and teachers have joined our team to become the part of this noble cause. They provide us notes and helping material to share with public. As different persons are notes provider so there may be a chance of mistake in some notes. Although it happens rarely, but if you find some mistake in the helping material, you can report it at

Related Post


Educated Zone Android App