**GRAVITATION**

SAMPLE PAPER QUESTIONS

**1.** Which force is responsible for stability of our universe?

**2.** Which force is required to maintain a body in uniform circular motion?

**4.** How is the weight of an object related to its mass?

**5.** Mass of boy on earth is 40kg, what is the mass on the moon?

**6.** What is the effect of shape of earth on value of ‘g’?

**7.** Why do we feel uneasy when ferry wheels moves downwards?

**8.** Derive formula of universal law of gravitation.

**9.** The acceleration of a freely falling body does not depend on the mass of the body. Prove this.

**10.** Establish relationship between ‘g’ and ‘G’.

**11.** Show that the acceleration due to gravity at the surface of moon is about 1/6 of that at the surface of the earth.

**12.** What is centripetal force? Define it with example.

**13.** With what force will body of mass 1kg get attracted to the earth?

**14.** Calculate the value ‘g’, acceleration due to gravity.