sound waves

Question 1

what is a longitudinal wave?

Answer 1

primary (p) waves are particles that vibrate parrallel to the direction of the wave. can move through solids and liquids.

Question 2

What is a transverse wave?

Answer 2

secondary (s) waves are particles that vibrate perpendicular to the direction of the wave. can only go through solids.

Question 3

define frequency?

Answer 3

the amount of wave sthat pass through a point in a period of time.

Question 4

how is frequency measured?

Answer 4

hertz

Question 5

what cabn transverse waves travel through?

Answer 5

only solids

Question 6

what can lonigtudinal waves travel through?

Answer 6

solids and liquids

Question 7

define pitch?

Answer 7

A musical tone determined by the frequency of the wave, the higher the frequency the higher the pitch.

Question 8

Define wavelength?

Answer 8

the horizontal distance between the crests or the troughs of 2 adjacent waves.

Question 9

define amplitude?

Answer 9

the vertical distance betwen a peak/trough and midline.

Question 10

define compression?

Answer 10

part of a longitudinal wave where the partiles are close together.

Question 11

define refraction?

Answer 11

part of a longitudinal wave where the particles are spread apart.

Question 12

define sound waves?

Answer 12

A longitudinal wave produced by objects which need a medium (solids, liquids, gases) to travel through.

Question 13

higher amplitude=?

Answer 13

louder sound

Question 14

lower amplitude=?

Answer 14

lower sound

Question 15

When is a sound dangerous?

Answer 15

any sound above 85db can damage hearing.

Question 16

how do you measure sound?

Answer 16

decibels