Question

A. Fill in the blanks.

1) Air moves from a region of...............pressure to a region of............pressure.

2) No medium is required for the transfer of heat by..........

3) Clothes of.......... colors absorb more heat better than clothes of light colours.




B. Multiple choice questions

4) Name the device which used to measure the hotness or coldness of an object

a. Picometer b. Barometer

c. Manometer d. Thermometer

5) Heat from the sun reaches to us by

a. radiation b. conduction

c. convection. d. all of these

6) The wind from oceans carry water and bring rain. These winds are called

a. Typhoon. b. Monsoon

c. Cyclone. d. None of these.


C. Answer the following questions

7) What is convection?


8) What are global wind?


9) What is land breeze?


10) Explain an experiment to show that air exerts pressure.
11) Monsoon wind are helpful. Do you agree? Explain.​

Answer 1

Answer:

1. high to low,,, gases move from high pressure to low pressure.

2. conduction,,, in solids are generally transfed by conduction.

3.dark colours,,, dark colours absorb more heat as they absorbe more light energy.

4.thermometer.

5.radition.

6.monsoon.

7.convention is a transfer of heat due to bulk movement of molecules within fluids,including molten rock.

8.global wind are winds which occur in belts that go all around the planet,,, caused by unequal hat by atmosphere.

9. a breeze blowing from sea towards the land is called land breeze espically in night.

10.take a balloone and fill air in it and when u leave it it goes of from the place it shows air excrets pressure

11.the monsoon winds carry water and it rain .cloud bring rain and give us happiness . farmers depend mainly on rain so monsoon winds are helpful