Do you weigh less on earth than in a spaceship orbiting 800 kilometers above earth?

Yes, you weigh less in a spaceship orbiting 800 kilometers above Earth compared to your weight on the Earth's surface. This is because weight is the force of gravity acting on an object, and gravitational force decreases with distance from the Earth's center. In orbit, you experience microgravity due to the continuous free-fall motion of the spaceship and its occupants, making you feel lighter. However, your mass remains the same in both locations.