Chapter 8 - Rotational Kinematics

Question 1

Centers of all objects with in a circular path that defines a line called the

Answer 1

Axis of Rotation

Question 2

The angle through which a rigid object rotates about a fixed axis

Answer 2

Angular Displacement

Question 3

Standard Unit of angular displacement

Answer 3

Radian (rad)

Question 4

Other units of angular diplacement

Answer 4

degree, revolution (rev)

Question 5

Equation of angular displacement

Answer 5

θ(in radian)=Arc length (s)/ Radius (r)

Question 6

the angular displacement divided by the elapsed time during which the displacement occurs

Answer 6

Average Angular Velocity

Question 7

Equation for average angular velocity

Answer 7

ω= ΔΘ/Δt

Question 8

Standard unit of angular velocity

Answer 8

radian per second (rad/s)

Question 9

Angular velocity that exists at any given instant

Answer 9

Instantaneous Angular Velocity

Question 10

Change in angular velocity divided by the elapsed time during which the displacement occurs

Answer 10

Average Angular Acceleration

Question 11

Equation for Average Angular Acceleration

Answer 11

α= Δω/Δt

Question 12

Standard unit of average angular acceleration

Answer 12

radian per second squared (rad/s²)

Question 13

the angular acceleration at a given instant

Answer 13

Instantaneous Angular Acceleration

Question 14

the vector drawn tangent to the appropriate circle

Answer 14

Tangential Velocity

Question 15

Motion done by an object on a circular path with a non-constant tangential speed

Answer 15

Nonuniform circular motion