4th Departmental Examination in Physical Science

It is a branch of science that deals with celestial objects, space, and the physical universe as a whole.

• Astronomy

• Earth science

• Chemistry

• Physics

What was Ptolemy’s contribution to the Geocentric model?

• He proposed elliptical orbits

• He introduced the idea of epicycles to explain planetary motion

• He discovered Jupiter’s moons

• He developed the laws of planetary motion

Which scientist created the Laws of Planetary Motion?

• Tycho Brahe

• Nicolaus Copernicus

• Johannes Kepler

• Claudius Ptolem

Who presented his three laws of motion in the Principia Mathematica Philosophiae Naturalis?

• Aristotle

• Galileo Galilei

• Isaac Newton

• Claudius Ptolemy

Which ancient Greek philosopher proposed the Geocentric model, where Earth is at the center of the universe?

• Aristarchus

• Aristotle and Ptolemy

• Nicolaus Copernicus

• Johannes Kepler

Who first suggested the Heliocentric model, stating that the Sun is at the center of the universe?

• Tycho Brahe

• Aristotle

• Aristarchus of Samos

• Nicolaus Copernicus

What did Kepler’s Laws of Planetary Motion describe?

• The circular orbits of planets around Earth

• The elliptical orbits of planets around the Sun

• The movement of stars within the Milky Way

• The gravitational pull of the Moon on the Earth

Which discovery by Galileo provided strong evidence against the Geocentric model?

• Discovery of Neptune

• Phases of Venus

• Theory of relativity

• Law of inertia

Which of the following statements is true about Tycho Brahe’s model of the universe?

• He fully supported Copernicus’ Heliocentric theory

• He believed all planets, including the Sun, orbited the Earth

• He suggested that planets orbit the Sun, but the Sun orbits Earth

• He discovered that planets follow elliptical orbits

What is Kepler’s First Law of Planetary Motion?

• Planets move in circular orbits around the Sun

• The speed of a planet remains constant throughout its orbit

• Planets move in elliptical orbits with the Sun at one focus

• The square of a planet’s orbital period is proportional to the cube of its semi-major axis