sounds

Question 1

sound

Answer 1

is a form of energy that is transferred from one point to another as a longitudinal wave

Question 2

echo

Answer 2

is the repetition of a sound due to the reflection of sound

Question 3

pitch

Answer 3

higher the frequency the higher the pitch

Question 4

loudness

Answer 4

larger the amplitude the louder the sound

Question 5

ultrasound

Answer 5

sound with frequency above the upper limit of the human range of audibility (human range is 20Hz to 20000Hz)
use for prenatal scanning