Weight

Weight is the force exerted on an object due to gravity. It is a measure of the gravitational force acting on an object. The weight of an object can vary depending on the strength of the gravitational field it is in.

Factors Affecting Weight

Several factors can affect the weight of an object:

1. Mass: The amount of matter in an object. Objects with greater mass will have a greater weight.
2. Gravity: The strength of the gravitational field. Weight is directly proportional to the strength of gravity.

Calculating Weight

The weight of an object can be calculated using the formula:

Weight = mass × acceleration due to gravity

Units of Weight

The standard unit of weight in the metric system is the newton (N), while in the imperial system, it is the pound (lb).

Study Tips

• Understand the difference between weight and mass. Weight is a force, while mass is a measure of the amount of matter in an object.
• Practice using the formula for calculating weight to solve problems.
• Be familiar with the units of weight and how to convert between them.
• Explore real-life examples of weight variations due to differences in gravitational strength.