Question

B. Give one word for the following.
1. Expansion of a solid in the form of a rod on heating.
2. Expansion of a solid in the form of a sheet on heating.
3. Two metal strips rivetted together​

Answer 1

Explanation:

1. linear expansion
2. superficial expansion
3. I don't know this answer

it's answer I hope it will help

please follow

Answer 2

Answer:

1) Different metals expand by different amounts for the same temperature rise. You could show a bimetallic strip being heated. These are often made of copper and iron. Copper expands by about 1.5 times as much as iron and so the bimetallic strip must bend.

2) In physics, Thermal expansion can be defined as the change in the length, width, height, or volume of any material on changing the temperature. Thermal expansion is very evident in solids as atoms are densely packed.

3) Two strips of metal are riveted together at their ends by four rivets, each of diameter 6 mm. Assume that each rivet is to carry one quarter of the load. If the shearing stress on the rivet is not to exceed 6.9×107Pa, the maximum tension that can be exerted by the riveted strip is.