all that i need to know

Question 1

Amplitude (amplitud):

Answer 1

height from the middle

Question 2

Crest (vågtopp):

Answer 2

highest part

Question 3

Trough (vågdal):

Answer 3

lowest part

Question 4

Wavelength (våglängd):

Answer 4

distance between crests

Question 5

Fast =

Answer 5

high frequency

Question 6

Slow =

Answer 6

low frequency

Question 7

Low frequency →

Answer 7

low pitch/dark pitch

Question 8

High frequency →

Answer 8

high pitch/light pitch

Question 9

how to caluclate frequence?

Answer 9

Count number of peaks
Divide by total time

Question 10

High amplitude →

Answer 10

loud

Question 11

Low amplitude →

Answer 11

quiet

Question 12

Oscilloscopes

Answer 12

Purpose:
Make a graph of a wave
How it works:
Measures voltage

Question 13

Sound Level Meter

Answer 13

Measure the loudness of sound
How it works:
Microphone converts sound into electricity

Question 14

Frequency Counter

Answer 14

Purpose:
Measure frequency
How it works:
Counts number of waves over time

Question 15

Microphone

Answer 15

Purpose:
Increase sound
How it works:
The diaphragm vibrates a coil and uses a magnet to make electricity

Question 16

Records

Answer 16

Purpose:
Store and play music
How it works:
he needle presses on the record and makes vibrations

Question 16

Noise Cancelling Headphones

Answer 16

Purpose:
Reduce sound
How it works:
Produces opposite sound waves to cancel noise

Question 17

Constructive:

Answer 17

waves add together

Question 18

Destructive:

Answer 18

waves cancel out

Question 19

what are all the parts of the ear?

Answer 19

pinna,Outer ear,Ear canal,Middle ear,Eardrum,Ossicles, Eustachian Tube,Inner ear,cochlea, Vestibular nerve, Auditory nerve.

Question 20

How sound travels through the ear
1.

Answer 20

Vibrations travel through the air.

Question 21

2.

Answer 21

The pinna collects the vibrations.

Question 22

3.

Answer 22

The vibration travel throat the ear canal to the eardrum

Question 23

4.

Answer 23

The eardrum vibrates and causes the ossicles to vibrate.

Question 24

5.

Answer 24

The ossicle cause fluid and hairs in the cochlea to vibrate

Question 25

6.

Answer 25

The cochlea changes the vibration into nerve signals

Question 26

7.

Answer 26

The vestibular and auditory nerves send information to the brain.

Question 27

all the parts that makes up speak?

Answer 27

Larynx/voice box,Trachea/WIndpipe,Muscles,Glottis/slit and Vocal cords.

Question 28

how do we speak?

Answer 28

Air is forced by the lungs through the slit between the vocal cords.

The vocal cords vibrate and produce sound.

The muscles opens or close the vocal cords to produce different sounds.