Question

abed measures the weight of four unknown samples that have the same shape.

sample	weight (n)
2	0.14
3	0.29
4	0.25

using the table above, which statement best describes the masses of the samples?
a. sample 2 has the greatest mass.
b. samples 1 and 4 have the same mass.
c. samples 3 and 4 have the same mass.
d. the mass needs to be measured to make a comparison.

Explanation:

Step1: Observe weights

We see Sample 1 weight is 0.25 N and Sample 4 weight is 0.25 N.

Step2: Analyze options

A is wrong as Sample 2 has least weight. C is wrong as 0.29 N (Sample 3) $
eq$ 0.25 N (Sample 4). D is wrong as weights can be used to compare relative masses (on same - gravitational field), and we can see 1 and 4 have same weight.

Answer:

B. Samples 1 and 4 have the same mass.