Law of conservation of momentum defines that the total momentum of a system of two bodies before and after collision ______...? Mcqs

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Law of conservation of momentum defines that the total momentum of a system of two bodies before and after collision ______...?

(A) Remains constant
(B) Retains more momentum

(C) Losses some momentum
(D) None of the above is true

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Solution is a kind of...?

(A) Mixture
(B) Element

(C) Compound
(D) None

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The two factors that affect the speed of sound in air are ______...?

(A) Humidity and volume of the air
(B) Temperature and mass of the air

(C) Volume and mass of the air
(D) Temperature and humidity of the air

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In onion pink color is due_____ ...?

(A) anthocyanin
(B) Carotene

(C) Xanthophylls
(D) None of these

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Charge carriers in a metal are electrons rather than protons because electrons are...?

(A) Smaller
(B) Negative

(C) Loosely bound
(D) All of the above

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Red + Green + Blue = ________...?

(A) Maroon
(B) White

(C) Black
(D) None of the above

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The electricity from a cell is called...?

(A) Direct Current (DC)
(B) Alternating Current (AC)

(C) Electric Potential (EP)
(D) Electric Resistance (ER)

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How long does the earth take to cover 1° longitude...?

(A) 2 Minutes
(B) 3 Minutes

(C) 4 Minutes
(D) 5 Minutes

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Change of state form liquid to solid is _________...?

(A) Boiling
(B) Freezing

(C) Evaporation
(D) None of these

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The process of making copies of DNA is called...?

(A) Transcription
(B) Replication

(C) Mutation
(D) Translation

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