Understand the difference between mass and weight. Mass is a measure of the amount of matter in an object, while weight is the force of gravity acting on that object.
Be familiar with the units used to measure weight, such as newtons (N) and pounds (lbs). Understand how to convert between these units.
Learn about the role of gravity in determining an object's weight. Understand how the strength of gravity can vary on different planets and celestial bodies.
Practice weighing different objects using a scale. Understand how the readings on the scale are related to the gravitational force acting on the objects.