Lesson 3- Sound waves

Sound waves are

• Transverse

• Mechanical

• Electromagnetic

Sound waves require a ................ to travel through

• gas
• medium
• vacuum
• solid

Sound waves travel through.........

• Air

• Solid

• Liquid

• Vacuum

Sound waves are..........

• solid waves
• liquid waves
• electromagnetic waves
• Longitudinal

Sound waves that pass through a a surface are called

• absorbed waves
• transmitted waves
• bouncing waves
• reflected waves

Sound waves that bounce off a surface are called

• reflections
• reverberations
• vibrated waves

• Reflected waves

most of the sound waves are ................ from the surface

• amplified
• absorbed
• dissipated
• reflected away

Sound........... describes the process of soundwaves, striking service and quickly losing energy.

• Reflection
• Amplification
• Absorption
• Refraction

The energy in sound waves is converted to.............. in the surface

• Thermal energy

• heat
• electricity
• light

.......... is the bending of soundwave around the edges of an openinging

• absorption
• refraction
• reflection
• diffraction