Module 8

Question 1

It denotes the orientation of a rotating object in free space. It also represents the direction of the displacement vector drawn from the origin to the location of the revolving object. Unit is in radians (rads), which is equivalent to fractional values of π.

Answer 1

Angular Position (Θ)

Question 2

The spinning movement of an object without actually leaving its position.

Answer 2

Rotation

Question 3

The movement of an object around an axis.

Answer 3

Revolution

Question 4

It is the measure where the angle through which a point, line, or body has rotated in a specified direction, about a specific axis. It is the difference between the initial and final angular positions.

Answer 4

Angular Displacement (Δθ)

Question 5

It measures the change in object’s angular displacement per unit of time.

Answer 5

Angular Velocity (ω)

Question 6

It shows the changes in an object’s angular velocity per unit of time.

Answer 6

Angular Acceleration (α)

Question 7

The resistance of a rotating body to change its current state of balance.

Answer 7

moment of inertia or rotational inertia

Question 8

The force acting on a rotating body, which is done at a certain distance away from its point of origin. It is also the counterpart of linear force.

Answer 8

Torque or “moment of force”