Multiple choice

Consider the following statements:

  1. When a person is standing on a weighing scale in a lift, which is moving upwards, the weighing scale shows lesser weight.2. The weight of an object would be minimum, when it is placed at the north pole of earth.
  2. The weight is a measure of the quantity of matter.

Which of the given statements is/are incorrect?

  1. Only (1)

  2. Only (1) and (2)

  3. Only (2) and (3)

  4. All of these

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

(1) Statement (1) is wrong. When a person is standing on a weighing scale in a lift, which is moving upwards, the weighing scale shows more weight. (2) Statement (2) is wrong. The weight of an object would be minimum, when it is placed at the centre of earth because it experiences gravitational pull from all the sides. Thus, the net weight of an object remains to be zero. (3) Statement (3) is wrong. Mass is a measure of the quantity of matter, whereas weight is a measure of force.