Heat

The technique used to measure the amount of heat involved in a physical or a chemical process is known as_
1. thermometry
2. heatmetry
3. calorimetry
4. conductivity
The most common scale to measure temperature is
1. Kelvin
2. Fahrenheit
3. Celsius
4. Rigler
The SI unit of energy is-
1. watts
2. joule
3. celsius
4. candela
1 kilo calorie = _J ?
1. 2800
2. 3200
3. 4890
4. 4200
Which device used to measure the amount of heat gained or lost by a substance?
1. coulombmeter
2. calorimeter
3. thermostat
4. thermos
A _ is a device which maintains the temperature of a place or an object constant.
1. calorimeter
2. thermos
3. thermostat
4. flask
The _ is an insulating storage vessel that keeps its content hotter or cooler than the surroundings for a longer time.
1. thermos flask
2. vacuum flask
3. both a & b
4. none of these
Which physical quantity expresses whether an object is hot or cold?
1. energy
2. temperature
3. heat
4. coldness
Which colour reflects heat?
1. Black
2. Red
3. White
4. Brown
The process of converting gas to liquid is called _.
1. condensation
2. sublimation
3. vaporisation
4. melting