General Physics Questions And Answers, Set 31

 

General Physics Questions And Answers

Q1. 

Polar satellites are high altitude satellites.

Answer : 

False

Q2. 

Every geostationary satellite is a geosynchronous satellite.

Answer : 

True

Q3. 

For a satellite with an elliptical orbit and not a circular orbit, the kinetic energy varies with time.

Answer : 

True

Q4. 

The time period of a satellite depends on _____

Answer : 

radius of its orbit

Q5. 

The satellites orbiting the earth, eventually fall to the earth when they are left unsupervised or unattended because _____

Answer : 

of viscous forces causing the speed of the satellite and hence height to gradually decrease

Q6. 

A black hole is called so because it is a hypothetical object.

Answer : 

False

Q7. 

The maximum value of gravitational potential energy is zero.

Answer : 

True

Q8. 

Acceleration due to gravity increases as we go towards the centre of the earth.

Answer : 

False

Q9. 

The acceleration due to gravity on the surface of the earth is different at different points on the surface.

Answer : 

True

Q10. 

The value of gravitational constant was first determined by _____

Answer : 

Henry Cavendish

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