Module 1: Interaction of waves L1+L2

A wave is a

• disturbance that transfer energy from a place to another

• particle of matter that defines a chemical element

• the basic building block of all living things

A material through which a wave passes is

• wave passage

• matter

• medium

Waves travel through medium with transferring matter

• True

• False

The denser that medium the ___ the wave travels

• Slower

• Faster

What are the two types of mechanical waves

• Seismic P

• Transverse

• Elctormagnetic

• Longitudinal

• Light

Steps to hearing

reorder the (steps to hearing):

• The three tiny bones passes its energy to the cochlea.

• The vibrations active hair cells and fluid inside the cochlea.

• The eardrum passes its energy through a chain of three tiny bones in the middle ear.

• Electrical signals are sent to the brain through the auditory nerve.

• Vibrations move through the outer ear canal and vibrates the eardrum .

Reorder the following

• Middle Ear

• Outer Ear

• Inner Ear

The names of the three tiny bones are:

• Hammer

• Alberto

• Stirrup

• Chainsaw

• Anvil

What is reflection?

• Is the bouncing of a wave off a surface

• Is the transfer of energy by a wave to the medium through which it travels

• Is the passage of a wave through a medium

• A change in direction of  a wave as they pass through opening or around a barrier in their path

What is Absorption?

• Is the bouncing of a wave off a surface

• Is the transfer of energy by a wave to the medium through which it travels

• Is the passage of a wave through a medium

• A change in direction of  a wave as they pass through opening or around a barrier in their path