rocker harshil
from
TImpany senior secondary school, Visakhapatnam
Subject :NSO Class : Class 6
A matchbox containing an unknown object is placed on a thin sheet of glass in the experimental set-up shown in the figure.
When the bar magnet moves, it is able to drag the match box along. What is most likely to be found in the matchbox?
A Marble
B Toothpick
C Ten-cent coin
D Steel ball bearing
the match box should certainly contain something magnetic as, when the bar magnet is moved then the match box is also dragged along with it .
Ans 1:
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Sharmi Chowdhury
from
G.D Birla Centre For Education , Kolkata
Class : Class 7
Isn't a ten-cent coin also magnetic?
Ans 2:
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Ashmi Narkar
from
The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
Ya Sharmi is correct, ten-cent coin is also always magnetic
Ans 3:
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Ashwak
from
Cambridge, Jalandhar
Class : Class 8
Yes steel ball bearing is the best option ....... but i think ten cent coin is also magnetic ... but let it be option A {STEEL BALL BEARING}
Ans 4:
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Mihika Raut
from
ST JOSEPHS SCHOOL, RIHAND NAGAR
Class : Class 8
steel ball bearing is a conducter that is why it is able to drag the box with it.
Ans 6:
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ATHARV RAHUL MAHAJAN
from
ST. STEPHENS SCHOOL CHANDIGARH, SAS NAGAR
Class : Class 6
Steel is not a magnetic material
Ans 7:
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Tamrashi Pani
from
National Public School, Bangalore
Class : Class 8
Yes it is... yet a steel ball bearing is the best option