Question

between them also increases. So, the substance expands.
For example, to open a tight metal lid of a jar, we dip it into hot water because th
auses the lid to expand a little and it opens easily.
Activity (Use Cordova Smart Class Software on the smart board in class to perfos
(To be demonstrated by t
To show that matter expands on heating ball iron ring
Method:
Take an iron ball and an iron ring as shown
in figure (a). The size of the ball should be
slightly more than the ring so that it does
not pass through the ring [figure (b)].
Now, heat the ring without the ball for a few
minutes [figure (c)).
Again, try to pass the ball from the ring.
What do you notice?
ervation: The ball that does not pass through
ing initially, now passes easily​

Answer 1

Answer:

On heating the metal expands.

Explanation:

The metallic ring expanded on heating so it allowed the ball to pass through it.