Key Concepts
This property of a sound wave determines how loud or quiet a sound is perceived.
Amplitude
True of False: Sound needs air to travel.
False
You come into class without a pencil. What could you do?
Ask a friend.
Get one out of the bin near the window.
What type of pitch does this graph represent? (Slide 2)
Low Pitch
What is the title of the worksheet on page 49.
L3 How do objects move when they make sounds?
This is the measurement of the number of oscillations or vibrations per second.
Frequency
Because sound requires a medium to travel, it cannot travel through this "empty" space.
Vacuum
When is the best time to ask to use the restroom?
What type of amplitude does this graph represent? (Slide 3)
High amplitude (loud sound)
How many vocab pages are there in this unit (so far)?
Two
Page 47 & page 53
This term describes how high or low a sound is, and it is directly determined by frequency.
Pitch
The lowest point of a wave.
Valley/Trough
Draw a graph with a low frequency.
Slide 5
Which graph on page 58 shows the Highest pitch?
Graph D
When a short stick is struck the sound will be what type of pitch?
High.
The highest point of a wave.
Peak/Crest
Your glue stick is empty! What should you do?
Get a new one from the cart by the calendar.
Draw a graph for a soft (quiet) sound.
Slide 6
What was our anchoring phenomenon for this unit?
A speaker in a car vibrating a window.
Material made of matter that sound can travel through.
Medium.
Sound travels fastest through this state of matter because the molecules are packed tightly together.
Solid
You submitted an assignment late. What should you do?
Nothing! I get an email from Schoology when something is turned in. No need to email! If it has been OVER a week, you may email me!
Label the parts of this graph. (Slide 4)
B. Peak/Crest
C. Valley/Trough
D. Amplitude
What instrument was our Lesson 6 Assessment on?
Harp