sound

Question 1

how is sound produced?

Answer 1

sound is produced when something vibrates back and forth very quickly

Question 2

what are the names of the region of space and bunched up areas that vibration creates?

Answer 2

compressions and rarefactions

Question 3

what is compression?

Answer 3

compression is the bunched up areas of particles in a sound wave

Question 4

what is a rarefaction?

Answer 4

rarefaction is the spaced out areas of particles in a sound wave

Question 5

sound waves are like what example? how do they move?

Answer 5

sound waves are like water in a ripple effect and they move outwards

Question 6

what does sound rely on?

Answer 6

sound rely on vibrating particles

Question 7

what are sound waves?

Answer 7

sound waves are a high and low pressure coming from a vibrating object and carried in waves

Question 8

what can sound travel through?

Answer 8

sound can travel through solids, liquids and gases but not through a vacuum, where there are no particles

Question 9

what do waves carry? and in how many waves?

Answer 9

waves carry energy from one point to another, in two ways

Question 10

what is a transverse wave?

Answer 10

a transverse wave is a wave that can carry wave horizontally, but the particles make up the wave moves in vertical direction

Question 11

what is a longitudinal wave?

Answer 11

a longitudinal wave is a wave that can carry energy back and forth the same direction the wave is travelling.

Question 12

sound waves are transmitted through material as…

Answer 12

a longitudinal wave

Question 13

the particles of the material…

Answer 13

vibrate as energy flows through it

Question 14

how fast can sound travel?

Answer 14

sound can travel at 340 metres per second

Question 15

the speed of sound depends on the quality of the material. what happens if the material is dense and has compact particles?

Answer 15

the compressions and rarefaction will travel quickly

Question 16

how does sound travel in warm and cool water?

Answer 16

sound travels faster in warm water than cooler water. the same goes with air.

Question 17

what can reflect sound waves?

Answer 17

hard surfaces, bathroom tiles and concrete can reflect sound waves

Question 18

what is an echo?

Answer 18

an echo is a sound that is reflected and can be heard a second time

Question 19

what is the technique of sonar?

Answer 19

the technique of sonar is when you measure the difference between sending and receiving an echo. the difference can be used to find the depth of an object

Question 20

how is the sonar used at sea?

Answer 20

sonar is used at sea by when people on a ship send a wave into the water and waiting for it to hit an a surface and return back to the ship. with this, we can calculate the depth of the object underwater by measuring the time taken for the sound wave to hit the object and return to the ship

Question 21

what does sonar stand for?

Answer 21

sound navigation and ranging

Question 22

what happens if a series of echoes reflect off surfaces

Answer 22

if a series of echoes reflect off many surfaces then the echoes can be heard for short amount of time

Question 23

what is reverberation?

Answer 23

the length of time a sound can be heard

Question 24

what absorbs sounds and turns it into heat?

Answer 24

soft materials

Question 25

what reduces reverberation? and how?

Answer 25

soft material, furniture can reduce reverberation and the length of time the sound can be heard.

Question 26

what is an oscilloscope?

Answer 26

a device that can compare sound

Question 27

what produces a high and low pitch?

Answer 27

what produces high pitch is rapid vibration and what produces low pitch it slow vibration

Question 28

what is frequency?

Answer 28

frequency is the number of waves passing a point every second

Question 29

high frequency?

Answer 29

high pitch

Question 30

low frequency?

Answer 30

lower pitch

Question 31

what is a wave length?

Answer 31

a wave length is the distance between two peaks that are next to eacher other and are measured in metres

Question 32

loud sound?

Answer 32

steep wave lengths

Question 33

soft sound?

Answer 33

less steep wave lengths

Question 34

the higher the frequency…

Answer 34

the the more bunched up and shorter the wavelength

Question 35

the lower the frequency…

Answer 35

the more spaced out and longer the wave length

Question 36

what are string instruments? how do they make high and low pitch?

Answer 36

guitar, violin and piano that make high pitch when you shorten the strings and make lower pitch when you make the strings longer

Question 37

what are percussion instruments? how do they make high and low pitch?

Answer 37

triangles, drums and xyolophones, they make high pitch when the skins is tightly streched on top of the instrument and makes lower pitch when it is poorly streched

Question 38

what are wind instruments? how do they make high and low pitch?

Answer 38

flute, recorder and saxophone have a coloum of vibrating air, to make high pitch when you cover the holes of the intrusment and mak lower pitch when you dont cover the holes

Question 39

all music instruments produce?

Answer 39

sounds by vibrations

Question 40

can you label a sound graph?

Answer 40

(search up unlabelled sound graph)