Login
Login
Sign up
Start
Mathmania
Teacher tutorials
TOP
Subjects
Bridge Course
Testworks
Subject updates
Ya+
News
Send feedback
See more
Contacts
About Us
Terms and Conditions
Privacy Policy
PDF chapter test
TRY NOW
Subjects
Science CBSE
Class 6
Changes around us
Textbook questions
23.
NCERT Exemplar VII
Exercise condition:
1
m.
Iron rim is made slightly smaller than the wooden wheel. The rim is usually heated before fixing into the wooden wheel, because on heating the iron rim
expands first, then on cooling contracts and fits onto the wooden wheel
contracts and fits onto the wooden wheel
no change in the size takes place
expands and fits onto the wooden wheel
Login
or
Fast registration
Previous exercise
Exit to the topic
Next exercise
Send feedback
Did you find an error?
Send it to us!