Tick (√ ) the correct options:

1. Temperature of an object is measured with ____________.
   1. barometer
   2. lactometer
   3. thermometer
   4. electrometer
2. The range of laboratory thermometer is from -10 °C to ___________.
   1. 90 °C
   2. 100 °C
   3. 110 °C
   4. 120 °C

1. Conduction of heat takes place only in _______________.
   1. solids
   2. liquids
   3. gases
   4. air
2. _____________ is a bad conductor of heat.
   1. Copper
   2. Air
   3. Silver
   4. Gold

Tick (√ ) the correct options:

1. Liquids transfer heat by ___________.
   1. conduction
   2. convection
   3. radiation
   4. expansion
2. The mode of heat transfer that does not require a medium is ___________.
   1. conduction
   2. convection
   3. radiation
   4. all of these
3. When one end of a metal rod is heated, the other end of the rod gets heated by __________.
   1. conduction
   2. convection
   3. radiation
   4. reflection
4. The slight bend in the stem just above the bulb in the clinical thermometer is called _________.
   1. ray
   2. jerk
   3. kink
   4. contraction
5. The normal temperature of a healthy human body is ____________.
   1. 30 °C
   2. 35 °C
   3. 40 °C
   4. 37 °C
6. 0 ^oC is the same temperature as ______________.
   1. 0 °F
   2. 212 °F
   3. 32 °F
   4. 100 °F
7. On dipping a plastic and a steel spoon in hot water, _____________ spoon gets hot.
   1. plastic
   2. steel
   3. both of these
   4. none of these
8. The sensation of hotness and coldness is caused by _____________ energy.
   1. magnetic
   2. electrical
   3. heat
   4. mechanical
9. Cooking utensils are usually made up of _____________.
   1. wood 
   2. plastic
   3. stainless steel
   4. glass
10. Handles of cooking utensils should be made of materials that are ____________.
    1. conductors
    2. insulators
    3. radiators
    4. absorbers

Fill in the blanks:

1. _____________ thermometer is used to measure our body temperature.
2. All ____________ are good conductor of heat.
3. _____________ thermometers do not use mercury.
4. Shiny and ______________ surfaces are better reflectors.
5. The lower fixed point is _____________  °C in a clinical thermometer.
6. Heat is measured in _____________.
7. Heat causes ______________.
8. The SI unit of heat is _____________.
9. The SI unit of temperature is _______________.
10. Thermometer works on the principle of ______________ of liquids on heating.
11. _____________ is a form of energy that causes the sensation of 'hotness' and 'coldness'.