Weights are objects used in various activities to provide resistance during exercise or to measure mass. In fitness, weights can be found in the form of dumbbells, barbells, or kettlebells, helping individuals build strength and improve muscle tone. They come in different sizes and materials, allowing people to choose the right weight for their fitness level. In science, weights are essential for measuring the mass of objects. They are often used in laboratories and kitchens, where precise measurements are crucial. The concept of weight is also related to gravity, as it determines how heavy an object feels based on its mass and the gravitational pull of the Earth.