Q.91)-According to the second Law of motion, for a given force, acceleration is inversely proportional to the …of an object.
  • Density
  • Volume
  • Force
  • Mass
Q.92)-The force of friction between two surface will increase if;
  • A layer of lubricant is kept between the two surfaces
  • The two surfaces are pressed harder
  • Air gap is created between the two surfaces
  • Irregulalrities on both the surfaces are removed
Q.93)-For an object, the state of rest is considered to be the state of……….speed.
  • Increasing
  • Decreasing
  • Inverse
  • Zero
Q.94)-A ball rolling along the ground gradually slows down and finally comes to rest is due to ……….
  • Friction
  • Magnetic force
  • Electrostatic force
  • Muscular force
Q.95)-The motion of a freely falling boy is an example of……..motion
  • Uniformly accelerated
  • Non-uniformly accelerated
  • Constant velocity
  • Constant speed
Q.96)-If the force applied on the object is in the direction of its motion, the speed of the object ………
  • Increases
  • Stops
  • Decreases
  • No effect
Q.97)-The frictional force exerted by fluids is also called…
  • Drag
  • Buoyancy
  • Upthrust
  • Convection
Q.98)-During uniform motion of an object along a straight line, the……..remains constant with time.
  • Time
  • Velocity
  • Acceleration
  • Distance
Q.99)-Friction is caused by the ………on the two surfaces in contact.
  • Irregularities
  • Smoothness
  • Densities
  • Gaps