Everyday Science MCQs

Page No. 102

What are considered the building blocks of matter?


aMolecules

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bProtons

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cElements

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dAtoms

✓


View Answer Atoms

All matter is made of ___________?


aAir

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bWater

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cVibrations

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dAtoms

✓


View Answer Atoms

_________ is anything that takes up space and has mass.


aMatter

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bGravity

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cEnergy

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dPlasma

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View Answer Matter

A device that converts mechanical energy into electric energy is called_______?


aMotor.

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bTransformer.

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cCoil.

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dGenerator.

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View Answer Generator.

The blue colour of clear sky is due to_______________?


aReflection of light

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bRefraction of light

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cDiffraction of light

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dDispersion of light

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View Answer Dispersion of light

Copper is used in the production of___________?


aBrick kilns

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bChildren toys

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cKitchen utilities

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dElectric wires

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View Answer Electric wires

When water is filled in a bottle and is allowed to freeze, the bottle breaks because


aWater expands on freezing

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bBottle contracts at freezing point

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ctemperature outside the bottle is less than that inside the bottle.

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dNone of the above

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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__________?


aProp him up if he falls

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bSpread out his weight and reduce the pressure on the rope

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cAdd extra weight to keep the rope tightly stretched

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dTo keep the Center of gravity always above vertically above the rope

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The sky appears blue because the earth’s atmosphere __________?


aScatters blue light

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bReflects blue light

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cTransmits blue light

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dHas actual blue cover

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View Answer Scatters blue light

Steering of a car involves?


aA single force

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bTwo forces acting in the same direction

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cTwo forces acting along different lines and in opposite direction.

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dA pair of forces acting along the same line and in opposite direction

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