Astronomy is a branch of science that studies the laws of the star's celestial objects and phenomena. The origin and evolution are explained by using mathematics, physics, and chemistry. It is one of the oldest natural science. Take this quiz to test your knowledge about astronomy and explore interesting facts.
Initially, when it is at 4000K.
Finally, when it is at 5000K
The same for these two cases
Not enough information to solve
Fsun
2 Fsun
16 Fsun
Fsun/2
P Watts
2 P Watts
4 P Watts
P/2 Watts
Twice
Four times (2^2)
Eight times (2^3)
Sixteen times (2^4)
The sun would look bluer and radiate more power
The sun would look redder and radiate more power
The sun would look bluer but radiate less power
The sun would look redder and radiate less power
Continuous
Emission line
Absorption line
1/4
1/8
1/16
1/64
1/2 Days
27.32/2 days
29.53/2 days
365/2 days
Earth, Mercury, Jupiter, Neptune
Mercury, Neptune, Earth, Jupiter
Mercury, Earth, Neptune, Jupiter
Earth, Neptune, Mercury, Jupiter
Venus
Mars
Uranus
Mercury
Asteroid
Comet
Planet
Trans-Neptunian object
How fast the microscopic particles that make up the object are moving
How fast the object is moving
How much current is generated due to the motion of the charged particles (e.g. electrons, protons) within it
Can be produced by man-made deceives
Has properties such as wavelength, and frequency
Carries information
Does not need a medium. i.e. it can travel through the vacuum
Microwaves
Infrared light
Ultraviolet light
Radio waves
It always appears completely black no matter what its temperature
It absorbs all radiation that falls on it no matter what the wavelength
It is an idealization that is only an approximation to real objects
That is constant (i.e. is the same for all black bodies)
That is independent of its temperature but depend on other properties of the black body
That is proportional to its temperature
That is inversely proportional to its temperature
Decreased with increasing temperature
Is independent of its temperature
Increases rapidly with increasing temperature
Depend only slightly on its temperature
The electron in the atom jumps from a higher orbital to a lower orbital
The electron in the atom jumps from a lower orbital to a higher orbital
The atom's temperature drops
The atom experiences a collision with another atom
The atom's temperature rises
The chemical elements that make up the gas
The temperature of the gas
The pressure of the gas
How transparent the gas is
A continuous spectrum
A blackbody spectrum
An absorption line spectrum
An emission line spectrum
It travels at a slower speed than c
Its wavelength is lower
It travels at a faster speed than c
Its frequency is lower
The emitter of a wave is moving away from the observer/reciever
The observer/receiver of a wave is in motion
There is relative motion between the observer/receiver and the emitter of the wave
The emitter of a wave is moving toward the observer/receiver
The wavelength of light from a source becoming longer than its natural wavelength
The wavelength of light from a source becoming shorter than its natural wavelength
The speed of light from a source becoming faster than c
The speed of light from a source becoming shower than c
Philosopher
Geologist
Chemist
Physicist
The crater caused by large asteroids/meteoroids are "erased" over time by Earth's geological activity
The craters caused by large asteroids/meteoroids are eroded over time by liquid water and wind on Earth
Over the course of history, more asteroids/meteoroids have struck the moon than the Earth
Smaller asteroids/meteoroids burn up in Earth's atmosphere before they reach the surface
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