practice

Star A has an azimuth of 270 degrees and altitude of 70 degrees. Which one of the following statements is correct?

Star A appears on the West closer to the Zenith than the horizon.

The Prutenic Tables were prepared using ........................ while the Alfonsian tables were prepared using .......................... .

Copernican model, Ptolemaic model

Which of the following is not one of, nor follows directly from, Kepler's laws?

The force of attraction between any two objects decreases with the square of the distance between their centres.

According to Kepler's third law of planetary motion, there is a relationship between the ........................ of a planet and its ............................. from the Sun. 

orbital period, average distance

which one of the following individuals discovered that the orbits of planets are elliptical? 

Johannes Kepler 

In the following quote by Robert Hooke, what feature of gravity is being emphasized:

"...all celestial bodies… have an attraction or gravitating power towards their own centres; whereby they attract not only their own parts, and keep them from flying from them, as we may observe the Earth to do, but that they do also attract all the other celestial bodies that are within the sphere of their activity."

Universality of gravity.

The distance between Saturn and the Sun is 10 Astronomical Units. If the distance between the Sun and Saturn is increased by a factor of two, the gravitational force between them .......

decreases by a factor of 4

Which one of the following is the correct description of dispersion? 

Splitting of white light into its constituent colours when passing through a transparent medium.

Which one of the following is NOT one of the principles of Cartesian Physics? 

That the building material of stars and planets are the same.

Which one of the following statements is FALSE? Hooke

Hooke believed that gravitational force was mediated through Descartes's plenum.

Which one of the following is a correct definition of "plenism"?

There can exist no empty space, absolutely devoid of matter.

Who is the author of Micrographia?

Rober Hooke

Which one of the following statements is TRUE? G

Galileo observed Neptune but failed to recognize it as a planet.

 Who is the author of the Letter to the Grand Duchess Christina? 

Galileo Galilei

Which one of the following individuals arranged and paid for the print and publication of Principia?

Edmund Halley

Which one of the following statements is correct?

The tides on Earth are to some extent caused by the Sun.

 At which lunar phase(s) are tides most pronounced (e.g., the highest high tides)?

New Moon

The mass of Uranus was measured following the discovery of ....................... using ............................ .

Titania, Newton's version of Kepler's third law

Which one of the following statements is false? comet

A Halley's type comet is a comet that revolves the Sun in orbits with eccentricity of less than 0.5.

Regarding the discovery of Neptune, which one of the following statements is FALSE?

Le Verrier was the first person who calculated the orbital characteristics of Neptune before its discovery.

Which one of the following statements is FALSE?

Neptune's distance from the Sun obeys Titius-Bode Law.

Which one of the following statements about parallax is NOT true? 

Stellar parallax decreases with decreasing distance.

Which one of the following statements is FALSE?

The Titius-Bode is a mathematical formula that predicts the distance of the satellites of the planets from their parent planet.

Regarding the discovery of Neptune, which one of the following statements is FALSE?

Le Verrier was the first person who calculated the orbital characteristics of Neptune before its discovery.

Which one of the following statements is FALSE? N

Neptune's distance from the Sun obeys Titius-Bode Law.

The Martian Polar caps were discovered by ...................... and their primary constituents is .......................

William Herschel, Carbon dioxide