Class 7 Science MCQ Winds, Storms and Cyclones

Question : Air exerts pressure in:

(a) sideways only
(b) downward direction only
(c) upward direction only
(d) all directions

Question : Air expands on:

(a) heating
(b) cooling
(c) drying
(d) none of these

Question : The calm centre of cyclone is:

(a) Eye
(b) Nose
(c) Skin
(d) None of these

Question : Winds are expected to blow towards the equator, at a latitude of:

(a) 40°N
(b) 30°N
(c) 20°N
(d) None of these

Question : How many hours in advance cyclone chart in issued of expected storms by satellites and radars ?

(a) 72
(b) 48
(c) 96
(d) 12

Question : A disaster fell on Orissa in India on:

(a) 22 Oct., 1999
(b) 29 Oct., 1999
(c) 18 Oct., 1999
(d) None of these

Question : Second cyclone hit Orissa on:

(a) 22 Oct., 1999
(b) 29 Oct., 1999
(c) 18 Oct., 1999
(d) None of these

Question : The number of homeless people hit by cyclone was:

(a) about 30,000 people
(b) about 60,000 people
(c) about 80,000 people
(d) about 70,000 people

Question : Which modern technologies have made easier to monitor cyclones?

(a) Radar and satellites
(b) Anemometer
(c) Radio and Television
(d) Television and satellites

Question : When is a cyclone warning issued

(a) 48 hours in advance
(b) 32 hours in advance
(c) 24 hours in advance
(d) 42 hours in advance

Question : What can be the maximum speed of tornado ?

(a) 30 km/hr
(b) 300 km/hr
(c) 3000 km/hr
(d) 3 km/hr

Question : We nil air into bicycle tubes to keep the tyre:

(a) tight
(b) loose
(c) heavy
(d) big

Question : Air has:

(a) force
(b) force when it is cold
(c) no force
(d) force when it is hot

Question : When a balloon deflates then:

(a) there is low sound
(b) there is loud sound
(c) no sound
(d) none of these

Question : Hot air compared to cold air is:

(a) heavy
(b) lighter
(c) same
(d) none of these

Question : Speed winds are accompanied by:

(a) increased air pressure
(b) reduced air pressure
(c) there is no change in air pressure
(d) none of these

Question : Air moves:

(a) from the region where the air pressure is high to the region where the pressure is low
(b) from the region where the air pressure is low to the region where the pressure is high
(c) any where
(d) none of these

Question : A storm is marked by:

(a) thunder and lightning
(b) flood
(c) water cycle
(d) storm

Question : The amount of water on the earth remains more or less the same because of:

(a) thunder
(b) flood
(c) water cycle
(d) all of the above

Question : A dark funnel-shaped cloud that reaches from the sky to the ground is:

(a) cyclone
(b) tornado
(c) hurricane
(d) none of these

Question : A name given to cyclone in American continent is:

(a) tornado
(b) hurricane
(c) typhoon
(d) none of these

Question : A name give to cyclone in Philippines and Japan is:

(a) tornado
(b) hurricane
(c) typhoon
(d) none of these

Question : The instrument used to measure wind speed is:

(a) barometer
(b) anemometer
(c) rain guage
(d) none of these

Question : Cyclones:

(a) damages houses
(b) reduces the fertility of soil
(c) damages trees
(d) all of these

Question : The factors which contribute to the development of cyclones is:

(a) wind speed
(b) temperature, humidity
(c) wind direction
(d) all of these

Question : When water changes from liquid to vapour state then water requires:

(a) wind
(b) heat
(c) air
(d) none of these

Question : The moving air is called:

(a) wind
(b) heat
(c) air
(d) none of these

Question : A formation of a very low pressure system with very high speed winds revolving around it is called

(a) wind
(b) thunderstorm
(c) cyclones
(d) none of these

Question : A swift movement of the falling water droplets along with the rising air and creating lightning and sound is:

(a) wind
(b) thunderstorm
(c) cyclone
(d) none of these

Question : The winds which flow from the oceans towards the land is:

(a) monsoon winds
(b) storm
(c) cyclones
(d) none of these

Question : Monsoon carry water and it starts:

(a) wind
(b) storm
(c) rain
(d) none of these

Question : Rain may cause excess water everywhere which is called:

(a) flood
(b) air
(c) cyclone
(d) none of these

Question : Floods may occur which destroys:

(a) vegetation
(b) property
(c) life
(d) all of these

Question : The direction of the wind gets reversed, it flows from the land to the ocean in:

(a) summers
(b) winters
(c) monsoons
(d) none of these

Question : Near the equator the land warms up faster in:

(a) summer
(b) winter
(c) monsoon
(d) none of these

Question : Most of the time, the temperature of the land is higher than that of the water in the:

(a) oceans
(b) rivers
(c) lakes
(d) sea

Question : Air exerts …………………… in all direction.

Question : The Indian Meteorological Department forecasts cyclones with the help of …………………… satellite.

Question : Rubber suckers work because of air …………………….

Question : A …………………… is a violent, twisting funnel of wind.

Question : Wind is …………………… air.

Question : Wind is generated due to heating on the …………………… earth.

Question : Near the earth’s surface …………………… air rises up whereas …………………… air comes down.

Question : Air moves from a region of …………………… pressure to a region of …………………… pressure.

Question : …………………… and …………………… have made easier to monitor cyclones.

Question : …………………… are important for harvest. If harvest is good, farmers are happy.

Question : …………………… is a cyclone in Philippines and Japan.

Question : Continuous heavy rainfall leads to …………………… situation.