Here's why:
* Gravity: Gravity is a fundamental force of nature that attracts objects with mass towards each other. The Earth's gravity pulls everything towards its center.
* Weight: Weight is the force exerted on an object due to gravity. It's the downward force that we experience when standing on Earth.
Key points:
* Weight is a force, measured in Newtons (N).
* Mass is a measure of the amount of matter in an object, measured in kilograms (kg).
* Weight depends on both mass and the strength of the gravitational field. The stronger the gravitational field, the heavier an object feels.
Example:
Imagine a 1 kg object on Earth. The Earth's gravitational field exerts a force of about 9.8 N on it. Therefore, the object's weight is 9.8 N. If the same object were on the moon, its weight would be less because the moon's gravitational field is weaker.