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Class 9 Physics — Online Test

Chapter 5: Gravitation

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📋 Instructions: Select one answer for each question, then click Submit Test at the bottom to see your score and correct answers.

Q1 Gravitational force between two bodies depends on:

Their temperatures Their masses and distance Their colours Their volumes

Q2 The value of gravitational constant G is:

6.67×10⁻¹¹ N·m²/kg² 9.8 N/kg 6.67×10¹¹ N·m²/kg² 9.8 m/s²

Q3 Weight of a body is defined as:

Mass × velocity Mass × gravity Mass × distance Mass × time

Q4 The mass of a body on Moon compared to Earth is:

6 times more 6 times less Same Zero

Q5 The weight of a body on Moon is approximately:

Same as on Earth Double of Earth 1/6 of Earth Zero

Q6 Gravitational field strength at Earth surface is:

9.8 N/kg 6.7 N/kg 10.8 N/kg 8.9 N/kg

Q7 Orbital speed of a satellite depends on:

Its mass Its colour Height above Earth Its temperature

Q8 Geostationary satellites orbit Earth every:

12 hours 24 hours 48 hours 6 hours

Q9 Escape velocity from Earth is approximately:

7.9 km/s 11.2 km/s 9.8 km/s 3.0 km/s

Q10 Newton's law of gravitation formula is:

F=ma F=GMm/r² F=mv²/r F=qvB

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