Flashcards in L2 week3 Deck (16):

1

## Degree

### Angular measurement equal to 1/360 of the circumference of a circle.

2

##
Radian (rad):

### Angle formed when the distance along the circumference of a circle equal the radius of the circle.

3

## PI:

### The ratio of the circumference of a circle to its diameter. Has a constant value ≈ 3.1416

4

## Angular measurements can be made in

###
degrees or radians.

5

## There are ...... or ...... radians in one complete revolution.

### 360 or 2pi

6

## rad =

### (pi/180)*degree

7

## degree=

### (180/pi)*rad

8

## The positive amplitude in the sine wave is equal to

###
90 degree

pi/2

9

## the middle of the sine wave is equal to

###
180 degree

pi

10

## the negative amplitude in the sine wave is equal to

###
270 degree

3pi/2

11

## Phase:

### Angular measurement that specifies the position on the sine wave relative to a reference point.

12

## Sine wave shifted right

### lags (-ve phase shift)

13

## Sine wave shifted left

### leads (+ve phase shift)

14

## Phase shift

### Occurs when a sine wave is shifted right or left in relation to the base/reference sine wave.

15

## An important application of phase-shifted sine waves is in

### electrical power systems

16