Physics Chapter 4 : HEAT

Which of the answer below is NOT the characteristics of liquid used in a liquid-in-glass thermometer?

• Sticks to the wall of the capillary tube

• Easily seen

• Good heat conductor

• Expands uniformly when heated

Which situation is not in thermal equilibrium?

• Ice left in water for 20 minutes

• A spoon left in hot soup for 10 minutes

• A spoon is put into a glass of iced tea

• Rocks are immersed in the river for 24 hours

What is the concept used in measuring coffee temperature using a thermometer?

• Specific heat capacity

• Thermal equilibrium

• Specific latent heat

• Thermal convection

Which statement is correct when the thermal equilibrium is reached?

• The temperature of the cake is higher than temperature of the surroundings

• The temperature of the cake is lower than temperature of the surroundings

• Net heat flow between the cake and the surrounding is zero

Mercury is used as a thermometric liquid because of its

• low density

• low boiling point

• ability to expand uniformly

Two objects that are said to be in thermal equilibrium have

• the same mass

• the same temperature

• the same heat capacity

• the same amount of heat energy

The rate of heat transfer from __________ object to ____________ object is higher.

• hotter, colder

• colder, hotter

A physical property which can be measured such as length of column of liquid is called

• Thermometric property

• Clinical property

Calibration is a process of

• making a scale of reading on the thermometer

• finding the thermal equilibrium

________ is the fixed lower limit and _________ is the fixed upper limit in calibration process.

• 0^oC, 100^oC

• 100^oC, 0^oC