During which process of energy exchange does cold air displace warmer air?

Related Mcqs:

1. What is known the cold and dense air blowing down from the mountain slope during the night__________?

   A. Anabatic Wind
   B. Katabatic wind
   C. Lue Wind
   D. None of these

   Submitted by: Aamir Hussain Laghari

2. Fog that most often forms as warm rain falls into a cold layer of surface air is called ______________?

   A. Radiation fog
   B. Evaporation (mixing) fog
   C. Advection fog
   D. Upslope fog

   Submitted by: Mansoor Ul Haque

3. During winter in cold countries, the __________ is mixed to melt the ice on the icy roads.

   A. Salt
   B. Chlorine
   C. Carbon dioxide
   D. Water

4. During which process does heat transfer occur because of density differences__________?

   A. Convection 
   B. Radiation
   C. Conduction
   D. None of these

   Submitted by: Rida

5. A device which converts chemical energy into electrical energy is called __________?

   A. motor
   B. generator
   C. moving-coil meter
   D. battery

6. Wind energy is the __________ energy.

   A. Potential
   B. Transverse
   C. Kinetic
   D. Mechanical

7. A device that converts mechanical energy into electric energy is called_______?

   A. Motor.
   B. Transformer.
   C. Coil.
   D. Generator.

8. Select the arrangement of electromagnetic radiation which starts with the lowest energy and increases to greatest energy?

   A. radio, visible, infrared, ultraviolet, x-ray, gamma ray
   B. radio, infrared, visible, x-ray, gamma ray, ultraviolet
   C. visible, radio, infrared, ultraviolet, x-ray, gamma ray
   D. radio, infrared, visible, ultraviolet, x-ray, gamma ray

   Submitted by: Mansoor Ul Haque

9. A loudspeaker changes _________ energy into sound energy.

   A. Chemical
   B. Electrical
   C. Light
   D. Kinetic

   Submitted by: Danish Balani

10. The radiant energy having lowest energy is?

    A. gamma rays
    B. UV rays
    C. visible light
    D. Radio waves

    Submitted by: Malik Asghar Hussain