Conduction O Level Physics MCQ (Multiple Choice Questions) PDF Download

Efficiency of conduction in liquids and gases compared to solids is

1. less efficient than solids
2. more efficient than solids
3. equally efficient to solids
4. efficiency may vary

With respect to heat transfer through conduction, which of the following inequalities place solids', 'liquids' and 'gases' in the right order?

1. Solids < liquids < gases
2. Solids < gases < liquids
3. Solids > gases > liquids
4. Solids > liquids > gases

Every liquid is a poor conductor of electricity instead of

1. molten steel
2. molten iron
3. molten mercury
4. molten copper

Conduction in liquids and gases is less efficient than solids because

1. collision in liquids is more as compared to solids
2. collision is less as compared to solids
3. in liquids and gases, particles are in random motion
4. in liquids and gases, particles are far apart

Process of transfer of thermal energy without any flow of material medium is called

1. Conduction
2. Convection
3. Radiation
4. None of the above