Question

what is mass?
the amount of matter in an object
the size of an object’s gravitational field
the space an object takes up
the weight of an object on earth

Explanation:

To determine the correct definition of mass, we analyze each option:

• "The amount of matter in an object" is the standard definition of mass.
• "The size of an object’s gravitational field" refers to gravitational influence, not mass.
• "The space an object takes up" is the definition of volume, not mass.
• "The weight of an object on Earth" is incorrect because weight is the force due to gravity (mass × gravity), while mass is the amount of matter.

Answer:

A. The amount of matter in an object