Lesson 11

Question 1

What kind of wave is sound

Answer 1

Three dimensional wave

Question 2

Sounds is _____ wave

Answer 2

Mechanical

Question 3

As the temperature increases the speed of sound will….

Answer 3

Also increase

Question 4

What is pitch

Answer 4

Refers to how high or low the sound is

Question 5

Frequencies below 20Hz are said to be

Answer 5

Infrasonic

Question 6

Frequencies above 20kHz is said to be

Answer 6

Ultrasonic

Question 7

What is loudness

Answer 7

A measure of how strongly a sound is heard

Question 8

What is the intensity of a sound

Answer 8

Is a measure of how much energy it carries (larger amplitude sound waves have a greater intensity