Lesson 1 : Rotational Inertia

Question 1

Movement of motion is applicable to _______

Answer 1

Straight Line

Question 2

Inertia is the resistance of an ______

Answer 2

object in change

Question 3

Fundamental Quantity

Answer 3

Mass

Question 4

Inertia

Answer 4

Object at rest will remain at rest and object in motion will remain in motion

Question 5

Acceleration

Answer 5

directly proportional to force and inversely proportional to its mass

Question 6

Acceleration :

______ to force and ________ to its mass

Answer 6

Diversely Proportional
Inversely Proportional

Question 7

Resistance to a change in the state of rotating body

Answer 7

Rotational Inertia

Question 8

Moment of Inertia

Answer 8

Rotational Inertia

Question 9

Intrinsic Property

Answer 9

Mass

Question 10

Depends on the amount of matter

Answer 10

Moment of Inertia

Question 11

Axis of rotation

Answer 11

Moment of Inertia

Question 12

always contant

Answer 12

mass

Question 13

how mass is distributed throughout the subject

Answer 13

moment of inertia

Question 14

does not depend on the masses of other particles

Answer 14

Intrinsic

Question 15

motion in a circle at a constant speed

Answer 15

uniform circular motion

Question 16

straight line

Answer 16

translational

Question 17

circular path

Answer 17

rotational

Question 18

time rate of change of angular displacement

Answer 18

Angular Velocity

Question 19

Angular Velocity

_______ - positive direction

Answer 19

Counterclockwise

Question 20

Angular Velocity

_________ - negative direction

Answer 20

Clockwise

Question 21

direction is based on the direction of ______

Answer 21

compass

Question 22

________ Inertia - Larger Resistance

Answer 22

Greater Inertia

Question 23

Rotational Inertia Formula

Answer 23

I = mr²

Question 24

masses closest to the axis of rotation have a ______ rotational mass. This means they are ______ to rotate.

Answer 24

• small
• easy

Question 25

masses FAR from the axis of rotation have a _______ rotational mass. This means they are ______ to rotate.

Answer 25

-far - difficult

Question 26

the distance across a circle through the center is called

Answer 26

Diameter

Question 27

distance from the center of a circle to any point

Answer 27

radius

Question 28

the line segment that joins two points on the circle

Answer 28

chord

Question 29

rate of change of angular velocity

Answer 29

angular acceleration

Question 30

what happens when the change is faster?

Answer 30

the greater angular acceleration