Chapter 9 Lesson 1

2. Sound waves travel the fastest through ____________

• vacuum

• solid

• liquid

• gas

Light waves travel the fastest through _____________

• vacuum

• solid

• liquid

• gas

All of the following are examples to electromagnetic waves, except ____________

• infrared

• visible light

• water waves

• microwaves

All of the following are example to mechanical waves, except _______________

• sound waves

• water waves

• ocean waves

• radio waves

____________ causes water waves

• sun

• light

• wind

• pressure

transverse waves travels perpendicular to the direction of the wave

• True

• false

gamma rays are an example to mechanical waves

• true

• false

electromagnetic waves require a medium to travel through

• true

• false

compressional waves travel with a right angle to the direction of the wave

• true

• false

mechanical waves need a medium to travel through

• true

• false