Question

Choose the correct statements.
(A) Weight of a substance is the amount of matter present in it.
(B) Mass is the force exerted by gravity on an object.
(C) Volume is the amount of space occupied by a substance.
(D) Temperatures below \(0^\circ\)C are possible in Celsius scale, but in Kelvin scale negative temperature is not possible.
(E) Precision refers to the closeness of various measurements for the same quantity.
Choose the correct answer from the options given below:

• A. (A), (B) and (C) Only
• B. (B), (C) and (D) Only
• C. (C), (D) and (E) Only
• D. (A), (D) and (E) Only

Hint:

Weight is related to gravity, while mass is a measure of the amount of matter. Precision refers to the reproducibility of measurements.

Answer 1

The Correct Option is C

- (A) is incorrect. Weight quantifies the gravitational force on an object; it does not represent the object's matter content.
- (B) is incorrect. Mass quantifies the amount of matter, not the gravitational force.
- (C) is correct. Volume accurately describes the space occupied by a substance.
- (D) is correct. Temperatures below \(0^\circ\)C are achievable within the Celsius scale. However, the Kelvin scale does not permit negative temperatures.
- (E) is correct. Precision indicates the degree of agreement among repeated measurements. Therefore, the correct choices are (3) (C), (D), and (E) Only.