Sound :)
What causes sound to be produced?
Vibrations
False
What makes a sound louder?
Greater amplitude
What causes an echo?
Sound waves reflecting back
When we speak these vibrate.
Vocal cords
How sounds travel from one location to another.
sound waves
A drum has _________ pitch.
Low
True or False: Particles do not travel with a sound wave
True
Sounds with many vibrations per second have ___________ frequency.
High
True or False: a quiet sound has big amplitude
False
Sound goes inside the ear and goes to the____________________.
Brain
What happens to sound waves when they hit a hard surface?
They bounce back (echo)
Can sounds be heard on the moon?
No
Which describes a property of sound waves?
They need a medium to travel
How does sound travel?
Through waves in a medium
When we talk, sound travels through this.
Air
How can you make a guitar string produce a higher pitch
Make it tighter
Which material would sound travel through the fastest?
Steel
Which factor affects the pitch of a sound?
The frequency of vibration
All matter has small _______
Particles
The three types of matter
Solid, Liquid, Gas
What happens to sound waves as they travel farther from their source?
They get weaker
Bigger Frequency makes the sound _______
Higher pitch