Heat

The first physical quantity that we study in thermometry comes under the heading of:

• Potential

• Pressure

• Heat

• Temperature

In thermometry we study about the measurement of:

• Potential

• Pressure

• Heat

• Temperature

Fluids always flow from a region of higher to lower:

• Potential

• Pressure

• Heat

• Temperature

Electric charge ( positive) flows from a body at higher to lower:

• Potential

• Pressure

• Heat

• Temperature

Heat flows from a body at higher to lower:

• Potential

• Pressure

• Heat

• Temperature

The degree of hotness or coldness is:

• Potential

• Pressure

• Heat

• Temperature

The temperature of a substance changes from -20°C to 20°C. What is the temperature change on Kelvin scale:

• 253 K

• 293 K

• 40 K

• -40 K

At S.T.P. pure water boils at:

• 100 K

• 173 K

• 273 K

• 373 K

When a piece of red hot iron is thrust into boiling water, temperature of the boiling water will:

• Increase

• Decrease

• Remains same

• Increase by 10 Celsius

When water is changed into ice it:

• Expands

• Contacts

• Both

• None