A simple machine that uses grooved wheels and a rope to raise, lower or move a load is known as...? Mcqs

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A simple machine that uses grooved wheels and a rope to raise, lower or move a load is known as...?

(A) Pulley
(B) Lever

(C) Incline Plane
(D) Wedge

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A saturated solution of KCl on heating becomes _______...?

(A) Unsaturated
(B) Supersaturated

(C) Diluted
(D) All of these

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If input of a NOT gate is "1" then its output is _____...?

(A) 1
(B) 0

(C) May be 1 or may be 0
(D) None of these

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The phenomenon of dispersion light can be observed experimentally by passing a white light through ____...?

(A) Lens
(B) Prism

(C) Mirror
(D) Grating

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In an Electric circuit when Electrons move from low to high potential they will _______...?

(A) Gain Energy
(B) Lose their identity

(C) Lose Energy
(D) Gain Potential

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Omnivores that eat only...?

(A) Only plants
(B) Only animals

(C) Both A and B
(D) None

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A boy sitting in an open car moving with the constant speed throws a ball straight up into the air. The ball falls _________...?

(A) behind him
(B) in front of him

(C) into his hand
(D) by his side

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A/an _______ provides an incomplete path for the current to flow through....?

(A) Open Circuit
(B) Closed Circuit

(C) Series Circuit
(D) Short Circuit

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What is the main composition of the sun...?

(A) Oxygen and Ammonia
(B) Hydrogen and Helium

(C) Hydrogen and Oxygen
(D) Methane and Hydrogen

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Birth control pills contain synthetic________...?

(A) Sugars
(B) Hormones

(C) Vitamins
(D) Minerals

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