Question

1. The process of convection occurs in

-Solids, liquids, gases, fluids, all of the above

2. Which phases of matter have a definite shape?

-solid, liquid, gas

3. Which phase(s) of matter can be considered fluids?

-solid, liquid, gas

4. All objects above 0K are

-liquid, gas, solid, moving

Answer 1

1. fluids is the right answer.

Convection is heat transfer by mass motion of a fluid such as air or water.Convection does not occur in solids because the particles within are too tightly packed to facilitate the process. Convection requires actual movement between the particles within a substance.

2.solids have the definite shape because the particles are too tightly packed.

3.liquid and gases are considered as fluids.because they have tendency to flow.

4.all objects above 0 Kelvin are moving. because kinetic energy of particles is directly proportional to the increase in temperature.