Ch. 7 Lesson 1: What are Waves

compressions

In longitudinal waves in a spring, the parts where the coils are close together are called

rarefactions

In longitudinal waves in a spring, the parts where the coils are spread out are called

Longitudinal

A _____________________________ wave moves the medium in the same direction as the wave travels.

Right

A transverse wave moves a medium at a(n) _____________ angle

circle

Each particle of water in an ocean wave moves in a __________.

vibrate

Mechanical waves form when a source of energy causes a medium to _______

crests

The highest parts of a transverse wave are called

troughs

The lowest parts of a transverse wave are called

Longitudinal

The three types of mechanical waves are transverse waves, surface waves and _____________ waves.

Electromagnetic

Waves that can travel with or without a medium are called _____________________ waves