Question

Name a common device, among the following used to measure mass of the body.
a) Barometer
b) Spring balance
c) Speedometer
d) Physical balance

Answer 1

Hint: Mass is the physical property of a body and a measure of its resistance. Mass of the body is measured by using physical balance.

Complete step by step answer:
Mass is both a property of a physical body and a measure of its resistance to accelerate (a change in its state of motion) when a net force is applied. An object's mass also determines the strength of its gravitational attraction to other bodies. The basic SI unit of mass is kilogram. Mass is the property of the body which determines the strength of the force. Weight is the product of mass and acceleration, mass and weight are both different quantities.. This is the reason that the weight of the body is one sixth on the moon as that on the earth because the force of gravity is less on the moon as compared to earth.

As per the above options,
• Barometer is used to measure the pressure of the atmosphere.
• Speedometer is used to measure the speed of the vehicle.
• Spring balance is used to measure the weight of the body.
• Physical balance is used to measure the mass of the body.

Hence, the correct answer is option (D).

Note: There are various other devices which measure mass of the body which are, beam balance, mass scales, weight scales, mass balances, weight balances, or simply scales, balances or balance scales, space linear acceleration mass measurement device, measurement transducer, vibrating mass tube sensor, Gravitational interaction.