Waves

Question 1

How are sound waves produced

Answer 1

They are produced mechanically

Question 2

how do you measure the speed of sound

Answer 2

S= D / T

Question 3

what is the relationship between frequency and pitch

Answer 3

They both are how many waves are in a bar

Question 4

What’s the relationship between the amplitude of and volume of loud notes and quite notes

Answer 4

the Relationship is how high the waves are

Question 5

true or false? transverse waves are perpendicular at the right angles

Answer 5

true

Question 6

do sound have different frequency

Answer 6

yes they do

Question 7

true or false waves are movements of sound

Answer 7

false

Question 8

describe longitudinal waves

Answer 8

in longitudinal waves the substance moves parallel to the direction of the motion of the wave

Question 9

What level of volume can begin to damage your hearing?

Answer 9

Any sound(s) over 100 dB can damage our hearing.

Question 10

What is the range of human hearing?

Answer 10

20Hz - 20,000Hz

Question 11

What is the formula for wavelength

Answer 11

Wavelength = velocity divided by frequency

Question 12

What makes a sound an “Ultrasound”

Answer 12

Any sound that is over 20,000Hz is an Ultrasound

Question 13

Are there any methods of reducing noise level?

Answer 13

Use items such as sound dampening foam or use a pair of noise cancelling headphones that will produce a mirror of unwanted noise that will cancel it.

Question 14

What can ultrasound be used for?

Answer 14

Imaging babes in a whom, imaging kidney stones and breaking-down kidney stones

Question 15

what is the threshold for hearing?

Answer 15

0dB

Question 16

What is the unit for time

Answer 16

Seconds

Question 17

State the units of wavelength.

Answer 17

Metre

Question 18

what is the range of human hearing ?

Answer 18

(20-20,000Hz).

Question 19

What formula do you use to calculate the frequency from the period

Answer 19

Frequency = 1 over period (F = 1/T)

Question 20

What is the wave speed?

Answer 20

Distance travelled by a wave per second.

Question 21

What is the equation for wavelength?

Answer 21

v=d/t

Question 22

What is frequency?

Answer 22

Number of waves per second.

Question 23

What is the symbol and units for frequency?

Answer 23

Symbol=F, units=Hertz(Hz).

Question 24

What is the term period as the time taken for one wave to pass a fixed point

Answer 24

Frequency

Question 25

What is the period of a wave from a graph

Answer 25

The time period for one of the things from a cycle