1. Momentum is defined as   mass × velocity   force × distance   mass × velocity2   mass × acceleration   Hint Half-n-half Clue   2. The rate of change of _______ is due to forces applied.   displacement   acceleration   velocity   momentum   Half-n-half Clue   3. The moon remains in its orbit around the earth due to the _______ forces between the two bodies.   gravitational   magnetic   electrostatic   frictional   Half-n-half Clue   4. If an object of mass 9 kg starts from rest and attains a velocity of 21 m/s after 7 s, then the force acting on it is   147 N   27 N   63 N   3 N   Half-n-half Clue   5. An object is moving in a circular path. The force acting on the object towards the center of the circle is called the   magnetic force   gravitational force   centrifugal force   centripetal force   Half-n-half Clue   6. When a force of 32 N acts on a body of mass 8 kg, the body will accelerate at   4 m/s2   None of these   32 m/s2   256 m/s2   Half-n-half Clue   7. Force is defined as   mass / volume   pressure / area   mass × acceleration   mass × velocity   Half-n-half Clue