Q: Which quantity is twice when an object has twice as much mass as another?

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weight = mass * gravity, so as long as the force of gravity is the same on both, an object with twice the mass will weigh twice as much.

Weight = mass x gravity. Therefore, this will happen as long as gravity doesn't change.

If the object doesn't move to another planet while you double its mass,its weight will also double.

mass

The heavy and light objects travel at the same rate because there are two competing factors that cancel each other out. The force of gravity is greater on the heavier object than on the lighter object, proportional to the object's mass. This means that an object with twice the mass will be pulled toward the earth with twice the force. On the other hand, the acceleration is proportional to the force divided by the mass. This means that an object that is twice the mass of another object will be accelerated twice as slowly as the lighter object given the same force. So in order for an object with twice the mass to move at the same rate as the lighter object, the heavier object must be submitted to twice the force. And this is exactly what the force of gravity does. For more information on gravity and forces, you might try the Physics section

Related questions

The quantity of matter in an object is called mass.

The quantity of matter in an object is called mass.

A balanced scale, which compares the mass of one object with that of a known quantity.

weight = mass * gravity, so as long as the force of gravity is the same on both, an object with twice the mass will weigh twice as much.

Weight = mass x gravity. Therefore, this will happen as long as gravity doesn't change.

Quantity of matter contained in that object.

The quantity of matter in an object is its mass. If you then know what the object is made from you can find out (approximately) how many atoms or molecules it has (measured in mol).

If the object doesn't move to another planet while you double its mass,its weight will also double.

Mass.

mass (:

mass

The heavy and light objects travel at the same rate because there are two competing factors that cancel each other out. The force of gravity is greater on the heavier object than on the lighter object, proportional to the object's mass. This means that an object with twice the mass will be pulled toward the earth with twice the force. On the other hand, the acceleration is proportional to the force divided by the mass. This means that an object that is twice the mass of another object will be accelerated twice as slowly as the lighter object given the same force. So in order for an object with twice the mass to move at the same rate as the lighter object, the heavier object must be submitted to twice the force. And this is exactly what the force of gravity does. For more information on gravity and forces, you might try the Physics section