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Question

Question

babycloud19801983

P6 Science

Question post on Wed, 27/04/2022 4:40pm

Can idea why the answer is (2)?

Answer

ChiefKiasu · Answer 1 · Post on Wed, 27/04/2022 5:14pm

The weight of iron block is lighter when weighed. This is cause by the fact that magnets attract iron.

The weight of the magnetic button is heavier when weighed, so the extra weight must be caused by the magnetic repelling force between the magnetic and the button. So, (b) is wrong.

Hence the answer is (2).

babycloud19801983 · Answer 2 · Post on Wed, 27/04/2022 5:49pm

babycloud19801983 Post on Wed, 27/04/2022 5:49pm

Thank you very much for your help.