Astronomy Questions With Complete Solutions.
If the Earth did not rotate, could you define where the celestial poles would be,
and if so, where would
they be?
No, there would be no celestial poles.
Which of the following features of an optical telescope determines its light
gathering power?
The diameter of the primary mirror.
The objective of most radio telescopes is similar to the objective of a reflecting
optical telescope in which way?
They are both concave in shape.
How much total surface of the Moon is illuminated by the Sun when it is at
quarter phase?
one half
Blue light has higher frequency than red light. Thus, blue light has
higher energy and shorter wavelength than red light.
The phase of the Moon on a particular night is determined by
the relative position of the Sun, Earth, and Moon.
Stars in the same constellation
may actually be very far away from each other.
In space, the velocity of radio waves is about
300,000 km/s.
The apparent visual magnitude of a star is a measure of the star's
brightness.
A calculation of how long it takes a planet to orbit the Sun would be most closely
related to
Kepler's third law
The Earth is closer to the Sun in January than it is in July. Which of the following
statements, in accord with Kepler's Second Law, is correct?
The Earth travels faster in its orbit around the Sun in January than in July.
If the Earth did not rotate, could you define where the celestial poles would be,
and if so, where would
they be?
No, there would be no celestial poles.
Which of the following features of an optical telescope determines its light
gathering power?
The diameter of the primary mirror.
The objective of most radio telescopes is similar to the objective of a reflecting
optical telescope in which way?
They are both concave in shape.
How much total surface of the Moon is illuminated by the Sun when it is at
quarter phase?
one half
Blue light has higher frequency than red light. Thus, blue light has
higher energy and shorter wavelength than red light.
The phase of the Moon on a particular night is determined by
the relative position of the Sun, Earth, and Moon.
Stars in the same constellation
may actually be very far away from each other.
In space, the velocity of radio waves is about
300,000 km/s.
The apparent visual magnitude of a star is a measure of the star's
brightness.
A calculation of how long it takes a planet to orbit the Sun would be most closely
related to
Kepler's third law
The Earth is closer to the Sun in January than it is in July. Which of the following
statements, in accord with Kepler's Second Law, is correct?
The Earth travels faster in its orbit around the Sun in January than in July.
