Define weight as the force on an object due to a gravitational field
• Mass refers to the amount of matter that is contained within an object, while Weight is the force of an object due to a gravitational field.
• Notably: Mass is measured in kilograms (kg) while Weight is measured in Newtons (N).
• ALL masses exert a gravitational field
• The gravitational field created by a mass is an area in which another mass experiences a force.
• The field around any object with mass extends infinitely, but decreases rapidly as we move away.
• It is in relation with the inverse square law ($I \alpha \frac{1}{d^2}$)
page revision: 4, last edited: 25 Apr 2011 03:10