# 7th Class Science Winds, Storm and Cyclones Question Bank

### done Winds, Storms and Cyclones

• A) Air at ${{10}^{\text{o}}}C$

B) Air at ${{40}^{\text{o}}}C$

C) Air at ${{20}^{\text{o}}}C$

D) Air at $-{{5}^{\text{o}}}C$

• A) A device for measuring atmospheric pressure

B) A device for measuring wind speed

C) A device for measuring atmospheric temperature

D) A device for measuring humidity

• A) It is an area of high pressure

B) It is an area of low pressure

C) It has lots of clouds and rains

D) It has high temperature

• A) Helicopters

B) Submarines

C) Satellites

D) Stars

• A) Lying on the ground in an open place

B) Going into the nearest water body

C) Staying indoors away from metallic doors or windows

D) Standing under a tall tree

• A) Heat is absorbed.

B) Heat is released.

C) Heat is first absorbed and then released.

D) There is no exchange of heat.

• A) Through convection currents

B) Through cyclones

C) Through rains

D) Through conduction

• A) Earth is round or spherical in shape.

B) It is hotter in and around the equator.

C) It is hotter in and around the north and the south.

D) Wind does not flow from the east or the west.

• A) Due to the seasons of the earth

B) Due to the shape of the earth

C) Due to the rotation of the earth

D) Due to the revolution of the earth

• A) Low pressure

B) High pressure

C) High temperature

D) Cyclone

• A) Northeast

B) Northwest

C) Southeast

D) Southwest

• A) Increase in molecular spaces

B) Decrease in molecular spaces

C) Breaking of molecules

D) Formation of new molecules

• A) Open the doors and windows

B) Close all the doors and windows

C) Make holes in the roof

D) Burn wood inside

• A) Nepal

B) Indonesia

C) Hungary

D) Mongolia

• A) Soft drink in a straw

B) The air

C) Soft drink in a glass

D) A closed bottle

• A) Riding a bicycle against the wind

B) Flying a kite

C) A ball falling to the ground

D) Drinking a soft drink through a straw

• A) A puddle of water evaporating in a few days

B) Blowing hair dry after washing it

C) Formation of dew drops on leaves

D) Drying of clothes under the sun

• A) The temperature decreases as we go higher.

B) The temperature increases as we go higher.

C) Pressure increases as we go higher.

D) Pressure decreases as we go higher.

• A) The way a straw works

B) The way an ink filler works

C) Falling of rain drops

D) Both (A) and (B)

• A) Warm air has more pressure.

B) Molecules are closer in warm air.

C) Warm air expands and becomes lighter.

D) Both (A) and (B)

• A) Sea breeze

B) Land breeze

C) Earthquake

D) Both (A) and (B)

•  P-Hurricane Q - Tornado R - Volcano

A) Only P and Q

B) Only Q and R

C) Only Q

D) Only R

• A) Revolution of the earth.

B) Rotation of the earth.

C) Tilt of the earth's axis.

D) Both (A) and (B).

• A) Variance in pressure

B) Variance in temperature

C) Variance in humidity

D) Variance in mass

• A) The candle melts

B) The wind present inside blew the candle

C) No oxygen is available

D) All of the above

• A) It changes from place to place.

B) It is always the same.

C) It is fixed at all heights.

D) It is always hot.

• A) The air on the earth

B) The dust particles in the air

C) The oxygen in the air

D) The water vapour in the dry air

• A) Mist

B) Dew

C) Frost

D) Snow

• A) Desert area

B) Coastal area

C) Mountainous area

D) All of the above

• A) Temperature of the liquid

B) Area of the liquid exposed to heat

C) Wind blowing over the liquid

D) All of the above

• A) The rotation of the earth

B) Change in season

C) Uneven heating between the equator and poles

D) Gravitational pull of the sun

• A) Shooting an air gun

B) Tyres of a vehicle

C) Floating of a heavy ship

D) Use of a syringe

• A) Conversion of vapours into liquid state

B) Liquification of compressed air

C) Drying of wet clothes

D) Conversion of solid to gas directly

• A) The revolution of the earth around the sun

B) The rotation of the earth around itself

C) The heat on the surface of the earth

D) The uneven shape of the earth

• A) The wet cardboard sticks to the glass.

B) Atmospheric pressure acts equally on the glass and on the cardboard.

C) The force of gravity pulling the cardboard is negligible.

D) Air exerts pressure on the cardboard in the upward direction.

• A) Wind movements are caused by uneven heating of air on the earth.

B) The movement of air from land to sea is called sea breeze.

C) When the air moves from sea to land it is called land breeze.

D) When air moves from low pressure to high pressure it is called wind.

• A) The strong air pressure

B) The energy of the ocean waves

C) The energy of the wind

D) The sun's energy

• A) High speed winds are accompanied by reduced air pressure.

B) High speed winds are accompanied by increased air pressure.

C) Change in pressure does not affect the wind velocity.

D) Humidity can change the velocity and direction of wind.

• A) They develop in hot, humid tropical areas like India very frequently.

B) They develop in cold, humid areas like polar region very frequently.

C) The swift movement of falling water droplets along with rising air create lightning and sound.

D) Upward rising winds produced by rising temperatures carry water droplets upwards.