sound travel
Hilda shouts "hey" in an empty hall at the shopping mall. The sound bounces off the walls and she hears "hey" over and over again. Hilda has just made
What is an echo
These cause sound waves
What is vibrations?
How loud or soft a sound is
What is volume
The wavelength of a low pitch
What is long
This is a type of energy that we can hear.
What is sound
3. All sound is made by
What are vibrations
The name given to how high or low a sound is
What is pitch?
The pitch of an object when it is long in length
What is low
The wavelength of a high pitch
What is short
True or False Pitch is how loud you hear a sound.
What false
The medium in which sound travels the quickest
What is a solid?
How fast or slow vibrations are
What is frequency?
What kind of pitch do we have when something vibrates slow?
Low pitch
High pitch sound waves look
What is squished together
When sound bounces, it causes an
What is an echo
The medium in which sound travels the slowest
What is a gas?
The speed of vibrations when an object is short in length
What is fast?
Sound travels in what?
What are waves
Low pitch sound waves look
What is spread out
This means to move back and forth.
What is to vibrate
7. Which sound has a pitch that is MOST DIFFERENT from the other three sounds?
A. fire alarm
B. bouncing ball
C. train whistle
D. smoke detector
What direction does sound travel?
In all directions
Any sound considered with reference to its quality, pitch, strength is
What is intensity
What made the salt move on the top of the can when we did that experiment?
What is vibration
Sound cannot be heard when there is no what? (Hint think of space)
What is air