Quiz for Satellite motion

Q1: The time period of a satellite orbiting close to Earth is approximately

A. 84 minutes B. 24 hours C. 12 hours D. 6 hours

Q2: Which of the following quantities remains constant for a satellite in uniform circular motion?

A. Linear velocity B. Angular momentum C. Centripetal acceleration D. Kinetic energy

Q3: The weight of a satellite in free fall is

A. Zero B. Maximum C. Infinite D. Equal to its mass

Q4: A geostationary satellite appears stationary from

A. The moon B. A moving rocket C. Earth’s surface D. Mars

Q5: Escape velocity is the minimum speed needed to

A. Enter Earth orbit B. Escape Earth’s gravity C. Land safely on Earth D. Maintain geostationary orbit

Q6: The orbital velocity of a satellite near Earth’s surface is approximately

A. 11.2 km/s B. 7.9 km/s C. 3.6 km/s D. 15.6 km/s

Q7: The height of a geostationary satellite above Earth is approximately

A. 36000 km B. 8000 km C. 1000 km D. 20000 km

Q8: Which physical quantity is conserved in satellite motion?

A. Momentum B. Kinetic energy C. Potential energy D. Total mechanical energy

Q9: The centripetal force for a satellite is provided by

A. Rocket engine B. Gravitational force C. Magnetic force D. Air pressure

Q10: If the height of a satellite is increased, its orbital speed will

A. Increase B. Remain constant C. Decrease D. Become zero

Q11: A satellite is in circular orbit. Its acceleration is directed

A. Tangentially B. Radially outward C. Radially inward D. Perpendicularly

Q12: Which energy increases as satellite’s orbit is raised?

A. Kinetic energy B. Potential energy C. Thermal energy D. Elastic energy

Q13: The angular velocity of a geostationary satellite is equal to that of

A. Moon B. Sun C. Earth D. Mars

Q14: In vacuum, satellite motion depends on

A. Mass of satellite only B. Mass of Earth only C. Mass of both Earth and satellite D. Gravitational interaction

Q15: For a satellite in elliptical orbit, its speed is maximum at

A. Apogee B. Perigee C. Equator D. Poles

Q16: The potential energy of a satellite is

A. Always positive B. Always zero C. Always negative D. Always constant

Q17: Time period of satellite increases with

A. Decrease in radius B. Increase in orbital radius C. Decrease in speed D. Increase in speed

Q18: The satellite in circular orbit moves with

A. Constant speed B. Constant velocity C. Constant acceleration D. Increasing speed

Q19: Escape velocity does NOT depend on

A. Mass of satellite B. Mass of Earth C. Radius of Earth D. Gravitational constant

Q20: If a satellite is launched with velocity less than required orbital velocity, it will

A. Crash back to Earth B. Escape Earth C. Go in circular orbit D. Stay fixed above Earth