## Summary

http://services.indg.in/test/modules/gravity_eng/univ_law.htm

https://phet.colorado.edu/en/simulation/gravity-force-lab

https://phet.colorado.edu/en/simulation/gravity-and-orbits

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http://services.indg.in/test/modules/gravity_eng/univ_law.htm

https://phet.colorado.edu/en/simulation/gravity-force-lab

https://phet.colorado.edu/en/simulation/gravity-and-orbits

**Activity 1**

Phet.colorado has created a Java applet to simulate the gravitational force. As the gravitaional force acts between any two bodies in the universe which is directly proportional to their massses and inversely proportional to the distance between them is visualised in this simulation.

**Go to Acivity**

**Activity 2**

Services.indg.in has created a Presentation of the gravitational force. As the gravitaional force acts between any two bodies in the universe which is directly proportional to their massses and inversely proportional to the distance between them is visualised in this simulation.

**Go to Activity**

**Activity 3**

Phet.colorado has created a Java applet to simulate the gravitational force. As the gravitaional force acts between any two bodies in the universe which is directly proportional to their massses and inversely proportional to the distance between them is visualised in this simulation.

**Go to Acivity**

1 . Please give me examples of prativedan in hindi please.................

Prativedan means report. Plz call me 950723950 to more information

2 . How to calculate zero error and least count of spring balance
**Least count** of a measuring instrument is the least value of physical quantity that can be measured accurately using the ins...

3 . why universal gravitational constant is scalar?

**Why universal gravitational constant(G) is scalar?**

Answer: Universal gravitational constant is a scalar...

Answer: Universal gravitational constant is a scalar...

4 . You find your mass to be 42 kg on a weighing machine . is your mass more or less than 42 kg ??
**You find your mass to be 42 kg on a weighing machine. Is your mass more or less than 42 kg?**

**Answer: **...

5 . 1) A body weighs 30 kg on the surface of the earth. How much would it weigh on the surface of the planet whose mass is 1/9 the mass of the earth and radius is half that of earth.

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