The lengths of mercury thread in a mercury thermometer are given here. Length in melting ice , length in steam above boiling water , length in liquid . What is the temperature of liquid ?
Important Questions on Heat and Temperature
The following diagram shows an experiment to investigate the heat conductivity of three rods made of different metals. A cork is attached on each rod by was.
The results of the experiment are shown in the following table
| Type of rod | Time taken for the cork to drop |
| Steel | |
| Copper | |
| Brass |
Which type of rod is a pure substance? Explain.
The following diagram shows an experiment to investigate the heat conductivity of three rods made of different metals. A cork is attached on each rod by was.
The results of the experiment are shown in the following table
| Type of rod | Time taken for the cork to drop |
| Steel | |
| Copper | |
| Brass |
Arrange, in an increasing order, the ability of heat conduction of these three materials.
The following diagram shows an experiment to investigate the heat conductivity of three rods made of different metals. A cork is attached on each rod by was.
The results of the experiment are shown in the following table
| Type of rod | Time taken for the cork to drop |
| Steel | |
| Copper | |
| Brass |
From the results, what conclusion can you make about the heat conductivity of different metals?
The following diagram shows an experiment to investigate the heat conductivity of three rods made of different metals. A cork is attached on each rod by was.
The results of the experiment are shown in the following table
| Type of rod | Time taken for the cork to drop |
| Steel | |
| Copper | |
| Brass |
What would you expect for the time taken for the cork to drop if a glass rod is used? Explain.
