Ch 11

Question 1

Two classifications of movement patterns

Answer 1

1. Linear or translatory

2. Angular or rotary

Question 2

Translatory (linear) motion

What are the two forms of translatory motion?

Answer 2

An object is translated as a whole from one location to another

• rectilinear: straight line progression
  - sledding down a hill
• curvilinear- curved translatory movement
  - rolling a bowling ball

Question 3

Circular motion in regard to curvilinear

Answer 3

Object moves a long a circumference of a circle, a constant curved path

Question 4

Angular/rotary motion

Example?

Answer 4

Object acting as a radius moves about a fixed point, or axis
- measured as angles or degrees
Ex: door, joint, wheel

Question 5

General motion

Answer 5

Combo of linear and angular motion

Question 6

Repititive movement (2)

Answer 6

Reciprocating movements

Oscillating movements

Question 7

Reciprocating movement

Answer 7

Repetitive linear movement

Ex: boucing ball

Question 8

Oscillating movement

Answer 8

Repetitive movement in an arc

Ex: playground swing

Question 9

Factors that determine the lind of motion

Examples?

Answer 9

Object with one fixed point (lever) permits angular only

Freely movable can permit angular and linear depending on where the force is applied in reference to its center of gravity