Types of Expansion in Solids

Q.

Which among the following factors does not influence the increase in volume of solids?

1. The constant temperature

2. The final temperature

3. The final volume of solid

4. The initial volume of solid

Q. In the case of expansion of solids, match the type of expansions with the effects.

1. change in length
2. change in volume
3. change in area

Q. Small gaps are left between cemented roads to avoid damage due to:

1. thermal expansion of gases
2. thermal expansion of liquids
3. anomalous expansion
4. thermal expansion of solids

Q.

What is the percentage change in length of $1m$ iron rod if the temperature change by ${100}^{\circ }C$ (Assume coefficient of linear expansion, $\alpha =2\times {10}^{-5}{}^{\circ }{C}^{-1}$)

1. $0.1\%$

2. $0.2\%$

3. $0.3\%$

4. $0.4\%$

Q. The thermal expansion of a solid bar depends on its______.

1. \N

2. the temerature change only.

3. depends on original length only.

4. the thermal properties of metal only.

Q. What will be the increase in length of a steel rod of length $0.5m$, when its temperature is increased by ${60}^{\circ }C$? The coefficient of linear expansion of steel is $0.000013{}^{\circ }{C}^{-1}$.

1. $0.019cm$
2. $0.045cm$
3. $0.015cm$
4. $0.039cm$

Q. On heating a rod, its length increases. On what factors does the increase in the length depend on?

1. The material of the rod
2. The initial length of the rod
3. The rise in the rod's temperature
4. The cross sectional area of the rod

Q. At ${15}^{\circ }C$ the height of Eifel tower is $324m$. If it is made of iron, what will be the increase in length in cm, at ${30}^{\circ }C$? ( Take coefficient of linear expansion of Iron as $11.5\times {10}^{-6}{}^{\circ }{C}^{-1})$

1. $5.6cm$
2. $12.2cm$
3. $8.4cm$
4. $2.4cm$

Q. Two rods A and B of the same metal, but of length $1\text{m}$ and $2\text{m}$ respectively, are heated from $0{}^{\circ }\text{C}$ to $100{}^{\circ }\text{C}$. Then, ___.

1. both A and B elongate the same.
2. A elongates more than B.
3. B elongates more than A.
4. A elongates, but B contracts.

Q.

A bridge is made from $20m$ long iron rods. At temperature ${18}^{\circ }C$, the distance between two rods is $0.4cm$. Up to what temperature will the bridge be in good shape?

(Take coefficient of Linear expansion of iron is $11.5\times {10}^{-6}{}^{\circ }C$)

1. ${35.4}^{\circ }C$
2. ${15.7}^{\circ }C$
3. ${55.2}^{\circ }C$
4. ${25.4}^{\circ }C$