Which of the following are methods of heat transfer?
A). Convection
B). Evaporation
C). Revolution
D). Thermal Expansion
Convection
The three types of heat transfer
Heat is transfered via solid material (conduction), liquids and gases (convection), and electromagnetical waves (radiation). Heat is usually transfered in a combination of these three types and seldomly occurs on its own.
1. A transformer can do all of the following except
2. The rapidly growing mass of phytoplankton covering the surface water of lake or pond is known as:
3. Which one of the following instruments is used to study dispersion of light ?
4. The amount of matter in a ball of steel is its :
5. Centrifugal force increases with
6. Contact force is another name for _________.
7. X - rays are used for the study of crystal structure because
8. It is difficult to fix a nail on a freely suspended wooden frame. Which law supports this statement?