[dityz_blond_chic_08]

1.) The amplitude of the wave in the diagram above is (up and is 1m and side to side is 6m)

A. 6m
B. 3m
C. 0.5m
D. 1m

2.) The differences in color in visible light, such as those in a rainbow, are caused by differences in

A. amplitude.
B. speed.
C. medium.
D. frequency.

3.) Sound waves

A. require a medium.
B. are unrelated to vibrations.
C. are not mechanical waves.
D. can travel in a vacuum.

4.) Light waves

A. require a medium.
B. cannot travel through solids.
C. cannot travel through liquids.
D. are electromagnetic waves.
http://i116.photobucket.com/albums/o9/cortkinz/p_ps_physics_chapter_15_testa_1.jpg

this is question number 1's diagram