The lowest possible temperature is
0o C
- 100o C
- 273o C
- 200o C
Which of the following does not need any material medium for heat transfer?
Conduction
Convection
Radiation
All the above
SI unit of heat is
Joule
Calorie
Kilo calorie
Celsius
Which of the following is useful in reducing the loss of heat energy?
Conductors
Insulators
Super conductors
Semi conductors
Which of the following occurs when water is cooled below 40C?
Water expands
Water contracts
Remains the same
None of these
Which of the following is a measure of the hotness or coldness of a substance?
Energy
Temperature
Magnetism
The heat in a substance is due to its
Potential energy
Internal energy
Electrical energy
Magnetic energy
The amount of heat contained in a body depends on the
Material of the body
Mass of the body
Temperature of the body
Heat energy is carried by electromagnetic waves in
Heat energy is carried by moving particles in
