General Physics Questions And Answers, Set 32

 

General Physics Questions And Answers

Q1. 

Polar satellites are used for high-resolution imaging of the earth’s surface because _____

Answer : 

they are closer to the surface of the earth and can cover vast areas very quickly

Q2. 

A geostationary satellite cannot orbit in any plane other than the equatorial plane.

Answer : 

True

Q3. 

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

Answer : 

True

Q4. 

Consider two satellites A and B. Both move around the earth in the same orbit but the mass of B is twice that of the mass of A.

Answer : 

Orbital speeds of A and B are equal

Q5. 

The time period of the moon around the earth is 24 hours.

Answer : 

False

Q6. 

The escape velocity of a planet depends on the radius of its orbit around the parent star.

Answer : 

False

Q7. 

Gravitational potential energy can be zero but gravitational potential can never be zero.

Answer :  

False

Q8. 

Acceleration due to gravity increases as we move away from the surface of the earth radially towards the sky.

Answer : 

False

Q9. 

The acceleration due to gravity on the surface of the earth is _____

Answer : 

lesser towards the equator and greater towards the poles

Q10. 

What material were the spheres made up of in Henry Cavendish’s experiment?

Answer : 

Lead

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