would an object weigh more or less if there were no atmosphere on earth
no
If there were no atmosphere on Earth, the weight of an object would remain the same. The weight of an object is the force with which it is pulled toward the center of the Earth by gravity. Gravity is produced by the Earth's mass and is independent of the presence or absence of an atmosphere.
To better understand why an object's weight remains the same, consider the following explanation:
1. Weight is the force of gravity acting on an object. It is the product of an object's mass and the acceleration due to gravity.
2. In the absence of an atmosphere, the force of gravity acting on an object would be the same, as gravity is generated by the Earth's mass, which doesn't change.
3. The mass of an object is a fundamental property that doesn't change with or without an atmosphere. So, the force of gravity acting on the object (weight) would remain unchanged.
Therefore, regardless of the presence or absence of an atmosphere, an object's weight would be the same.