I have a question. What is the difference between gravitational mass and intertial mass?
http://www.thefreedictionary.com/gravitational+mass
http://www.google.com/search?hl=en&ie=UTF-8&defl=en&q=define:Inertial+mass&sa=X&oi=glossary_definition&ct=title
Gravitational mass refers to the amount of gravitational force experienced by an object when it is near a massive body like Earth. It determines how strongly an object is attracted towards another object through gravitational force. In other words, it measures the strength of the gravitational pull on an object.
On the other hand, inertial mass refers to the resistance an object shows to changes in its motion. It is the property of matter that quantifies how difficult it is to change the velocity of an object. Inertial mass determines how much force is required to accelerate or decelerate an object.
The difference between gravitational mass and inertial mass lies in their definitions and the physical principles they represent. Gravitational mass is related to the gravitational force acting on an object, while inertial mass is related to a body's resistance to changes in its motion.
To find a more detailed explanation and further information on the subject, you can visit websites like The Free Dictionary (http://www.thefreedictionary.com/gravitational+mass) and perform a Google search for the definition of inertial mass (http://www.google.com/search?hl=en&ie=UTF-8&defl=en&q=define:Inertial+mass&sa=X&oi=glossary_definition&ct=title).