Which scientist established that the various form of energy mechanical, electrical and heat are basically the same and can be changed from one form into another...? Mcqs

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Which scientist established that the various form of energy mechanical, electrical and heat are basically the same and can be changed from one form into another...?

(A) John Dalton
(B) William Thomson

(C) Albert Einstein
(D) James Prescott Joule

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The matter that sound travels through is called the...?

(A) Frequency
(B) Medium

(C) Amplitude
(D) Vibration

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How many Layers of Earth...?

(A) 2
(B) 4

(C) 6
(D) 8

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The main function of kidney is____________...?

(A) to control blood pressure
(B) to control body temperature

(C) to remove waste from blood
(D) to help in digestion of bady

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The process in which body cells divide for growth, repairing, and development is called _____...?

(A) Meiosis
(B) Mitosis

(C) Microsis
(D) Mekosis

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When something changes position, it is in...?

(A) Rest
(B) Friction

(C) Motion
(D) Gravity

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The lenses are used for the correction of:____________...?

(A) Long-sightedness
(B) short sightedness

(C) Both A & B
(D) None of those

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A body is in neutral equilibrium when its center of gravity _______...?

(A) Is at the lowest position
(B) Remains at same height

(C) Is at highest position
(D) Is at its base

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A tight-rope walker carries a long pole which he holds across his body. The purpose of this pole is to____________...?

(A) Prop him up if he falls
(B) Spread out his weight and reduce the pressure on the rope

(C) Add extra weight to keep the rope tightly stretched
(D) To keep the centre of gravity always vertically above the rope

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The position of an element in the Periodic Table is determined by its __________ number...?

(A) Electron
(B) Proton

(C) Neutron
(D) None of these

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