Final answer:
The weight of a brick with a mass of 1 kg is 9.8 N, as weight is calculated using the formula weight equals mass times gravity. A ton of bricks and a ton of feathers weigh the same if their mass is one ton.
Step-by-step explanation:
The weight of a certain type of brick can vary depending on its mass and gravity. The question mentioned in the example states that a brick has a mass of 1 kg. As weight is the force exerted on a mass by gravity, we use the formula weight (w) = mass (m) × gravity (g), where gravity is typically 9.8 m/s^2 on Earth. Therefore, the weight of the brick would be 1 kg × 9.8 m/s^2, which equals 9.8 N (newtons). In another example, if you have twenty bricks weighing 3 kg each, the total weight would be 20 × 3 kg × 9.8 m/s^2, which would result in a combined weight of 588 N. Mass and weight are often confused, but it's important to remember that even though a ton of feathers and a ton of bricks have vastly different volumes due to density, their weight is the same as long as their mass is equal to one ton.