Everyday Science MCQs

Page No. 94

Particle clouds from where stars are formed are known as____________?


aStellar nurseries

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bStar clouds

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cEvent horizons

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dSingularities

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View Answer Stellar nurseries

PSR J0108-1431 is the closest known ______________ to Earth?


aBlack hole

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bRed giant

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cQuasar

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dPulsar

✓


View Answer Pulsar

When a star becomes a singularity and has zero volume and infinite density, it is called_______________?


awhite dwarf

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bBlue giant

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cWolf-Raynet star

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dBlack hole

✓


View Answer Black hole

You have discovered a new celestial body. It has a thick atmosphere and it produces powerful cosmic winds and, when observed, the clouds obscure the body. You have determined it is this type of star.


aWolf-Rayet star

✓


bRed supergiant

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cStellar storm

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dPulsar

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View Answer Wolf-Rayet star

In a typical H-R diagram, stars are graphed by these two characteristics:


aTemperature and luminosity

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bLuminosity and distance

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cDistance and temperature

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dSize and distance

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A pulsar is a rapidly spinning neutron star which emits:


aA blinding light when it aligns with the planets

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bRadio waves detectable from Earth

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cA gravitational pull which attracts high energy dust particles

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dEnough energy to power itself indefinitely

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What sub-class of neutron star is known for its extremely high magnetic field?


aMagnetar

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bQuasar

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cMagnetto

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dMagnetta

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View Answer Magnetar

When our sun reaches the end of its red giant phase, it will turn into a___________?


aSupernova

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bBlack Hole

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cWhite Dwarf

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dNeutron Star

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View Answer White Dwarf

Insulin drug was discovered by____________?


aCharles Herbert Best

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bProf John James Rickard Macleod

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cSir Frederick Grant Banting

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dLeonard Thompson

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Most drugs are excreted through_____________?


aKidney

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bSkin

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cGallbladder

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dLungs

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View Answer Kidney

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