Lesson 1 What Are Waves?

Waves that need a medium to travel through are called?

• longitudinal
• mechanical
• transverse
• machine

The lowest part of the wave is called the ?

• frequency
• crest
• amplitude
• trough

The highest point of a wave is called the ?

• crest
• trough
• wavelength
• frequency

In a longitudinal wave, the particles move...?

• back and forth
• up and down
• not at all
• at a 90 degree angle

material in which a mechanical wave travels

• medium 
• vacuum 
• black holes
• chocolate

makes the particles in a medium move parallel to the direction of the wave

• longitudinal wave 
• transverse wave 
• electromagnetic wave 

Wave that moves perpendicular to the motion of the wave

• transverse
• compressional
• physical 
• chemical

What do we call the part of a compressional wave that is spaced further apart?

• rarefaction
• compression
• energy
• work

A disturbance that transfers energy from one place to another is known as:

• wave

• energy

• vacuums

• matter

What kind of wave vibrates perpendicular to the direction the wave is traveling is called.....

• sound wave
• longitudinal
• transverse
• mechanical