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WorksheetsModern Astronomy
Total questions: 10
Worksheet time: 6mins
He was a Danish astronomer and nobleman who made accurate observations of the movement of celestial bodies.
Johannes Kepler
Tycho Brahe
Galileo Galilei
Isaac Newton
He was a German astronomer and mathematician who worked as an assistant to Brahe and formulated the three laws of planetary motion based on Brahe’s extensive astronomical data.
Isaac Newton
Tycho Brahe
Johannes Kepler
Galileo Galilei
It states that the ratio of the squares of the period of two planets is equal to the ratio of the cubes of the planets’ average distance from the Sun.
Kepler's Second Law
Kepler's Third Law
Kepler's First Law
This law states that planets follow an elliptical orbit.
Kepler's First Law
Kepler's Third Law
Kepler's Second Law
It states that when an imaginary line is drawn from the center of a planet to the center of the Sun, an equal amount of space is swept in equal amount of time.
Kepler's First Law
Kepler's Second Law
Kepler's Third Law
Definition of Kepler's Third Law?
All planets movie in elliptical orbits with the Sun at one focus (Law of Orbits)
A line that connects to planet to the Sun sweeps out the equal areas in equal times (Laws of Areas)
The square of the orbital period of any planet is directly proportional to the cube of the radius of its orbit (Laws of Periods)
Average value of the distance between the planet and the Sun
What are Kepler's three laws of planetary motion?
Half of the shortest diameter of an elliptical orbit
By measuring the average distance from the sun and using the law of harmonies formula T^2=k*r^3
By dividing the distance between the two foci by the length of the major axis.
The law of ellipses 2. The law of equal areas 3. The law of harmonies
An astronomical unit is...
The average distance between the Earth and the Sun
The average distance between the Sun and Neptune
The diameter of the sun
The time it takes light to travel across our solar system
Kepler's First law states that each planet moves in a _ orbit
elliptical
circular
spherical
triangular
