General Knowledge MCQs: Space Science

What is the definition of a galaxy?

1. A large cluster of thousands or millions of stars
2. A small body orbiting a star
3. A planet surrounded by rings
4. A satellite of a planet

Right Answer is (A) A large cluster of thousands or millions of stars

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Which unit is used for measuring vast distances in space?

1. Kilometers
2. Light years
3. Hours
4. Minutes

Right Answer is (B) Light years

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Among the following given options, which planet has a tilted rotational axis that causes extreme seasons?

1. Jupiter
2. Uranus
3. Neptune
4. Saturn

Right Answer is (B) Uranus

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Considering the following options, what is a common characteristic of comets?

1. They emit their own light
2. They contain large amounts of ice
3. They are the same as planets
4. They orbit moons

Right Answer is (B) They contain large amounts of ice

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What is the approximate distance light travels from Earth to the nearest star after the Sun?

1. 8 minutes
2. 4.24 light-years
3. 1 light year
4. 100,000 light years

Right Answer is (B) 4.24 light-years

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Which instrument is used by astronomers to magnify distant objects?

1. Microscope
2. Binoculars
3. Telescope
4. Radar

Right Answer is (C) Telescope

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What is the purpose of an astronomical telescope?

1. To capture sound from space
2. To magnify distant objects
3. To generate energy
4. To detect air pressure

Right Answer is (B) To magnify distant objects

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___________ of a telescope collects light from distant objects?

1. Eyepiece lens
2. Light tight tube
3. Objective lens
4. Focusing ring

Right Answer is (C) Objective lens

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How does the eyepiece lens in a telescope work?

1. It captures radio waves from space
2. It acts like a magnifying glass
3. It collects light from distant objects
4. It holds the telescope in place

Right Answer is (B) It acts like a magnifying glass

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What role does a light-tight tube play in a telescope?

1. It gathers light from objects in space
2. It magnifies the image
3. It holds the lenses and blocks out other light sources
4. It transmits sound waves

Right Answer is (C) It holds the lenses and blocks out other light sources

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