• #### 1.  Earth revolves around the sun, centripetal force required is provided by:

• Frictional force
• Gravitational force
• Coulomb’s force
• Magnetic force

• 6.38×106
• 6.38×1024
• 6.0×106
• 6.0×1024
• #### 3.  The angular displacement is measured in:

• Degrees
• None of these

• Twice
• Three times
• Four times
• half
• #### 5.  If a stone is tied to the end of a string and whirled in a circle, the tension in a string provides:

• Centripetal force
• Centrifugal force
• Pressure
• Reaction

• 0o
• 45o
• 90o
• 180o

• 0o
• 45o
• 90o
• 180o

• Newton
• Coulomb
• Cavendish
• #### 9.  Centripetal acceleration is due to:

• Change in direction of velocity
• Change in magnitude of velocity
• Change in both magnitude and direction of velocity
• Change in the path of velocity
• #### 10.  The centripetal force is always directed:

• Along the direction of motion
• Away from center
• Towards the center
• In a straight line

• Twice
• Three times
• Four times
• half
• #### 12.  The direction of velocity in a uniform circular motion is-

• towards the centre
• straight line
• cannot be determined
• along the tangent to the point on the circle
• #### 13.  Velocity in uniform circular motion is

• Constant
• Variable
• Sometimes variable and sometimes constant
• Can't be determined

• Twice
• Three times
• Four times
• half

• 0.573o
• 5.73o
• 57.3o
• 573.00

• A
• A & B
• A, B & D
• C

• True
• False
• Don't know

• 0o
• 45o
• 90o
• 180o

• True
• False
• Don't Know

• 6.38×106
• 6.38×1024
• 6.0×106
• 6.0×1024
• #### 21.  In a uniform circular motion

• velocity is constant
• acceleration is constant
• speed is constant
• All of the above
• #### 22.  The value of “G” is:

• 6.67×10 -6 Nm2/kg2
• 6.67×10 -9 Nm2/kg2
• 6.67×10 -10 Nm2/kg2
• 6.67×10 -11 Nm2/kg2
• #### 23.  The gravitational force between two bodies depends upon the product of their masses in addition to:

• Square of the distance between them
• Shape of bodies
• Medium between them
• Sum of masses
• #### 24.  The centripetal acceleration is always directed:

• Along the direction of motion
• Away from center
• Towards the center
• In a straight line
Report Question
access_time