PHYSICS MATRICULATION QUIZ CHAPTER 6

What is rigid body

• A body that does not deform under the influence of forces

• A body that does not deform under the influence of forces

• An object that is flexible and can be easily deformed.
• An object that is not affected by external forces.

The SI unit for angular displacement is

• degree

• radian

• meter

• revolution

If the body rotates, which physical unit will be same in every point on a rotating body

• tangential acceleration

• velocity

• angular velocity

• displacement

What is torque

• Cross product between distance and time

• Cross product between mass and force

• Cross product between force and time

• Cross product between distance and force

Torque is

• Scalar Unit

• Vector Unit

Which one does not influence the torque

• Force

• Distance

• Angle

• Pressure

What is moment of inertia

• Moment of inertia is a measure of an object's resistance to changes in its linear motion.
• Moment of inertia is a measure of an object's resistance to changes in its translational motion.
• Moment of inertia is a measure of an object's resistance to changes in its gravitational motion.
• Moment of inertia is a measure of an object's resistance to changes in its rotational motion.

The moment of inertia depends on these factor except,

• distribution of mass

• mass

• momentum

• rotation axis chosen

Angular momentum is the product of

• mass and angular velocity

• force and angular displacement

• angular velocity and angular displacement

• moment of inertia and angular velocity

The angular momentum will not be conserved if

• There is an external torque acting on the system.
• The system is isolated.
• The system is in equilibrium.
• The system is rotating at a constant speed.