Conduction of thermal energy takes place in
solids
liquids
gases
All of these
D.
All of these
In heat transfer, conduction (or heat conduction) is the transfer of thermal energy between regions of matter due to a temperature gradient. Heat always flows from a region of higher temperature to a region of lower temperature and results in the elimination of temperature differences by establishing thermal equilibrium. Conduction takes place in all forms of matter, viz. solids, liquids, gases, and plasmas, but does not require any bulk motion of matter. In solids, it is due to the combination of vibrations of the molecules in a lattice or phonons with the energy transported by free electrons. In gases and liquids, conduction is due to the collisions and diffusion of the molecules during their random motion.
Which of the following topic is suitable for a unit plan?
The meaning and concept of the systems of the body.
The blood circulatory system
The different systems of the human body
The blood and respiratory system
The concept of "Seed germination" can be best taught by
showing germinated seeds to the class and explaining the process of germination
presenting the different stages of germination through drawing on the board
showing photographs of seed germination
asking the students to sow seeds, observe and draw the different stages of germination
A person using a lens as a simple microscope sees an
inverted real image
inverted virtual image
upright real image
upright virtual image
First time bacteria were observed by
Antony Von Leeuwenhoek
Louis Pasteur
Robert Hook
None of the above
Which of the following is immovable joint?
Pivot-joint between head and neck
Hinge-joint of elbow
Joint between skull bone
Ball and socket joint
Which of the following method will you use to develop an aquarium?
Heuristic method
Problem solving method
Project method
Programmed method
Which blood corpuscle help in coagulation of blood?
Lymphocyte
Platelets
Monocyte
Red blood corpuscles
