Question

1. an unmanned space craft, started exploring the surface of mars by taking pictures and collecting samples. if these samples from mars had been brought back to earth, would the mass and weight be impacted?

the mass and weight of the rock samples would not be affected.
the mass of the rock samples would increase, but the weight would stay the same.
the mass and the weight of the rock samples would change due to the change in gravity
the mass of the rock samples would remain the same, but the weight would change due to the change in gravity.

Explanation:

Mass is an intrinsic property of matter and does not change with location. Weight is the force exerted on an object due to gravity (\(W = mg\), where \(m\) is mass and \(g\) is the acceleration due to gravity). Since the acceleration due to gravity on Earth (\(g_{Earth}\approx9.8\ m/s^{2}\)) is different from that on Mars (\(g_{Mars}\approx3.71\ m/s^{2}\)), the weight of the samples will change when brought back to Earth (because \(g\) changes), while the mass (\(m\)) remains the same as it depends only on the amount of matter in the samples.

Answer:

D. The mass of the rock samples would remain the same, but the weight would change due to the change in gravity.