Question

Which of the following demonstrates a change in weight only ?

A. A rocket leaves the earth and lands on the moon

B. A person changes from 100 kg to 75 kg after dieting

C. 12 liters of oxygen is compressed to 4 liters

D. An athlete adds 20 kg to the bar in the weight room

Answer 1

A. A rocket leaves earth and lands in the moon



Answers b and d are wrong because they change mass as well as weight
Answer c is wrong because it changes density