Home › JAMB UTME › Physics › Dynamics: Force and Newton's Laws of Motion › Which has more mass, a kilogram of cotton balls …
Which has more mass, a kilogram of cotton balls or a kilogram of gold?
AThe gold, since it is denser than cotton
BThe cotton, since it takes up more volume
CNeither, since the two masses are equal
DThe gold, since it weighs more on a scale
Answer & Solution
Correct answer: C. Neither, since the two masses are equal
1. A kilogram of one substance is equal in mass to a kilogram of another substance.
2. So the cotton and the gold have exactly the same mass.
3. What differs between them is volume and density, not mass.
4. Both would also weigh the same at the same place, since weight is mass times the gravitational acceleration.
_Source: OpenStax College Physics (CC BY 4.0), Ch 4 "Dynamics: Force and Newton's Laws of Motion", section 4.2 Newton's First Law of Motion: Inertia_
Related questions
How many basic forces are now taken to account for all known phenomena?Objects falling toward Earth are never truly in free-fall in the real world because:When NASA speaks of weightlessness and microgravity, physics calls the same phenomenon:Weight is not an intrinsic property of an object because:The weight of a 1.0 kilogram object on Earth is about:A gravitational field g at an object's location exerts a force whose magnitude is:The diagram that shows only the external forces acting on one body is called a:A force exerted on an object is always due to: