Solar System Dynamics — Homi Bhabha Exam Physics MCQs with Solutions
Free Homi Bhabha Exam Physics Solar System Dynamics MCQs with step-by-step solutions (6 questions). Part of Observing Space / Astronomy. Practise online on Prepizo — no login needed.
▶ Practise Solar System Dynamics online (free)
Questions with solutions
Q1 — Solar System Dynamics · medium · theory
The planets revolve around the Sun in orbits that are:
A. square
B. elliptical ✓ Correct
C. perfectly circular
D. straight lines
Solution: As described by Kepler, planetary orbits are ellipses with the Sun at one focus.
Q2 — Solar System Dynamics · medium · theory
The planet nearest to the Sun is:
A. Earth
B. Mars
C. Mercury ✓ Correct
D. Venus
Solution: Mercury is the innermost planet of the solar system.
Q3 — Solar System Dynamics · medium · theory
The largest planet in the solar system is:
A. Earth
B. Jupiter ✓ Correct
C. Neptune
D. Saturn
Solution: Jupiter is the biggest planet by both diameter and mass.
Q4 — Solar System Dynamics · hard · theory
The asteroid belt of the solar system lies mainly between the orbits of:
A. Earth and Mars
B. Jupiter and Saturn
C. Mars and Jupiter ✓ Correct
D. Venus and Earth
Solution: The main asteroid belt is located between Mars and Jupiter.
Q5 — Solar System Dynamics · hard · theory
A planet closer to the Sun completes one revolution in a shorter time than a distant planet. Therefore, the planet with the shortest year is:
A. Saturn
B. Jupiter
C. Mercury ✓ Correct
D. Neptune
Solution: Being closest, Mercury moves fastest and has the shortest orbital period (year).
Q6 — Solar System Dynamics · medium · theory
The terrestrial (rocky) inner planets of the solar system are:
A. Mercury, Venus, Earth and Mars ✓ Correct
B. Venus, Jupiter, Earth and Neptune
C. Earth, Jupiter, Saturn and Mars
D. Jupiter, Saturn, Uranus and Neptune
Solution: The four inner planets — Mercury, Venus, Earth, Mars — are small and rocky (terrestrial).