Sound Flashcards
1
Q
Frequency
A
The number of vibrations per second
2
Q
Amplitude
A
Tells us how loud the sound is or how much energy
3
Q
Sound reflects off ______ __________
Soft materials _______ sound and convert the energy into heat
A
Hard surfaces
Absorb
4
Q
When is an echo heard
A
When sound is reflected
5
Q
Two Types of sound waves and where they travel
A
Transverse - particles move at right angles to the direction of the energy
Longitudinal- particles and energy move in the same direction
