What property of this wave is represented by the letter “A”

Which of the following is true about the motion of the objects?

When we dropped a rock onto the table with a laser beam (dot) bouncing off of a mirror on the table, the dot that showed up on the wall or ceiling but did not move because solid objects cannot vibrate.

Striking a shorter stick and measuring its position with a motion sensor should help us simulate what is happening with a tine (or a xylophone bar or a guitar string) that is producing a higher note.

What length of xylophone bar would you strike to make a low pitch note?

Opposite Poles…

 If the distance represented by the letter A were increased, how would it change the way the sound was heard?  

How are electromagnets different from permanent magnets?

When you speak nothing is vibrating to create a sound.

The lines with arrows in the drawing are called __________. They are more concentrated _________. This is where the magnetic field is __________