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- 1. Multiple Choice
How long is a light-year?
9.461 quadrillion km
9.461 trillion km
9.461 billion km
9.461 million km
- 2. Multiple Choice
Soviet Union managed to launch the first satellite in 1957. What is the satellite called?
Voyager 1
Explorer 1
Sputnik 1
Kosmos 1818
- 3. Multiple Choice
Which of these following meteor showers appears in the month November every year?
Geminids
Lyrids
Leonids
Perseids
- 4. Multiple Choice
A bright meteor is called
Astrophyllite
Achondrite
Pawdite
Bolide
- 5. Multiple Choice
In billions of years time, Earth will not be habitable. What is the reason?
The Sun’s photosphere will become so hot that life becomes impossible on Earth
The Sun will become a red giant star and expands to a size beyond Earth’s orbit
The magnetic field of the Earth will disappear and we will lose the protection from solar wind
The temperature of Earth will drop as the Sun is running out of fuel.
- 6. Multiple Choice
For total solar eclipse, the earth has to be in the region of _____; For partial lunar eclipse, the moon has to be in the region of ______
umbra, umbra
umbra, penumbra
penumbra, penumbra
None of the above
- 7. Multiple Choice
Meteors get hot when entering atmosphere mostly due to
Ablation
Friction
Compression
Sublimation
- 8. Multiple Choice
Which of the following is correct about neutron stars?
High density, strong gravity, strong magnetic field
High density, strong gravity, weak magnetic field
Low density, weak gravity, weak magnetic field
Low density, weak gravity, strong magnetic field
- 9. Multiple Choice
_______ is the ripples in the overall geometry of space produced by the acceleration of moving objects.
Doppler effect
Granulation
Gravitational waves
Elongation
- 10. Multiple Choice
The far side of the moon was first photographed by which spacecraft?
Apollo 11
Luna 3
Chang'e 4
Pioneer 4
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