Practicing Success

Target Exam

CUET

Subject

General Test

Chapter

General Knowledge

Question:

Which of the following combinations of measures of quantity and unit is NOT a correct match?

Options:

Weight - Cubic metre

Temperature - Kelvin

Pressure - Pascal

Mass - Kilogram

Correct Answer:

Weight - Cubic metre

Explanation:

The correct answer is option 1. Weight - Cubic metre.

Let us delve deeper into each of the combinations:

1. Weight - Cubic metre: Weight is a measure of the gravitational force acting on an object, and it is typically measured in units such as Newtons \((N)\) or pounds \((lb)\). Weight is a force, while volume is a measure of the amount of space occupied by an object and is typically measured in cubic meters \((m^3)\) or other volume units like liters (L) or cubic centimeters \((cm^3)\). Therefore, "Weight - Cubic metre" is not a correct match because weight is not measured in cubic meters.

2. Temperature - Kelvin: Temperature is a measure of the average kinetic energy of particles in a substance, and its unit is typically the Kelvin \((K)\) in the International System of Units \((SI)\). The Kelvin scale is an absolute temperature scale, where 0 K represents absolute zero, the lowest possible temperature where particles have minimal motion. This combination is a correct match because temperature is indeed measured in Kelvins.

3. Pressure - Pascal: Pressure is defined as force per unit area and is typically measured in units such as Pascals (Pa), atmospheres \((atm)\), or millimeters of mercury \((mmHg)\). The Pascal is the SI unit of pressure, defined as one newton per square meter \((Nm^{-2})\). This combination is a correct match because pressure is indeed measured in Pascals.

4. Mass - Kilogram: Mass is a measure of the amount of matter in an object, and its unit is typically the kilogram (kg) in the International System of Units (SI). The kilogram is the base unit of mass in the SI system, defined as the mass of the International Prototype of the Kilogram (IPK), a platinum-iridium alloy cylinder kept at the International Bureau of Weights and Measures. This combination is a correct match because mass is indeed measured in kilograms.

In summary, "Weight - Cubic metre" is the combination that is NOT a correct match. Weight is not measured in cubic meters; it is measured in units of force, such as Newtons or pounds.