A rocket needs the speed of .......... to escape from earth's gravity...? Mcqs

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A rocket needs the speed of .......... to escape from earth's gravity...?

(A) 22 miles per second
(B) 15 miles per second

(C) 12 miles per second
(D) 7 miles per second

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H=100-4t The equation above can be used to model the number of hours h until a gallon of milk held at a temperature of t, in degrees Celsius, goes sour. Based on the model, which of the following is the best interpretation of the number 4 in the equation...?

(A) An increase of 1 degree Celsius will make a gallon of milk go sour 4 hours faster
(B) An increase of 1 degree Celsius will make 4 gallons of milk go sour 1 hour faster

(C) An increase of 4 degrees Celsius will make a gallon of milk go sour 1 hour faster
(D) An increase of 4 degrees Celsius will make a gallon of milk go sour 4 hours faster

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Nuclear energy when expanded converts...?

(A) Proton into neurons
(B) Chemical into heat

(C) Nuclear into thermal
(D) None of these

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Which of the following is the most important factor in causing mass movements...?

(A) Temperature
(B) Pressure

(C) Water content
(D) Bulk composition

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What is S.I unit of temperature...?

(A) Kelvin
(B) Celsius

(C) Fahrenheit
(D) None of these

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Who among the following invented steam engine...?

(A) Enrico Fermi
(B) James Watt

(C) James Boyle
(D) None of these

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Sound travels fastest in:...?

(A) Solid
(B) Liquid

(C) Gas
(D) None of these

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Which chemical element has properties of a metal and no metals...?

(A) Metalloid
(B) Lanthanoid

(C) Actanoid
(D) Graphite

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Wind blowing in a spiral form around a region of low atmospheric pressure is a:...?

(A) Tornado
(B) Cyclone

(C) Hurricane
(D) Anti-cyclone

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Phases of the moon occur because...?

(A) only that part of the moon which reflects light
(B) Our distance from the moon keeps changing

(C) The thickness of the moon's atmosphere
(D) The shadow of the Earth covers only a part of moon

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