Satellites (Natural & Artificial) — Homi Bhabha Exam Physics MCQs with Solutions
Free Homi Bhabha Exam Physics Satellites (Natural & Artificial) MCQs with step-by-step solutions (6 questions). Part of Observing Space / Astronomy. Practise online on Prepizo — no login needed.
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Questions with solutions
Q1 — Satellites (Natural & Artificial) · medium · theory
A natural satellite of the Earth is the:
A. Moon ✓ Correct
B. International Space Station
C. Sun
D. INSAT
Solution: The Moon is Earth's only natural satellite; the others listed are man-made or stars.
Q2 — Satellites (Natural & Artificial) · hard · theory
A geostationary satellite appears to stay fixed above one point on the Earth because its orbital period is:
A. exactly 12 hours
B. about 24 hours (equal to the Earth's rotation period) ✓ Correct
C. about 1 month
D. about 1 hour
Solution: A geostationary satellite orbits once every ~24 hours over the equator, matching the Earth's spin, so it appears stationary.
Q3 — Satellites (Natural & Artificial) · medium · theory
Artificial satellites are commonly used for:
A. communication, weather forecasting and navigation ✓ Correct
B. purifying drinking water
C. growing crops in space
D. producing electricity for homes
Solution: Man-made satellites serve communication, weather monitoring, remote sensing and GPS navigation.
Q4 — Satellites (Natural & Artificial) · hard · theory
A satellite remains in its orbit around the Earth because:
A. the Sun pushes it
B. the gravitational pull of the Earth provides the required centripetal force ✓ Correct
C. its engines fire continuously
D. there is no gravity in space
Solution: Earth's gravity supplies the centripetal force that keeps the satellite moving in its circular/elliptical orbit.
Q5 — Satellites (Natural & Artificial) · medium · theory
India's first artificial satellite, launched in 1975, was named:
A. Mangalyaan
B. INSAT-1A
C. Chandrayaan
D. Aryabhata ✓ Correct
Solution: Aryabhata was India's first satellite, launched in 1975.
Q6 — Satellites (Natural & Artificial) · medium · theory
Which of the following is an Indian series of satellites used for telecommunication and broadcasting?
A. Voyager
B. INSAT ✓ Correct
C. GPS
D. Hubble
Solution: The INSAT (Indian National Satellite) series handles communication and weather services.