Waves

Which number is pointing to the crest?

• 1

• 2

• 3

• 4

Match the following parts of an ear

• eardrum

• 7

• Ear Canal

• 3

• semicircular canals

• 2

• eustachian tube

• 11

Speed = wavelength x frequency

What would be the speed of a wave with a 5m wavelength, and a frequency of 50Hz?

• 25 m/s

• 250 m/s

• 3 x 10^8 m/s

• 250 hz

Mechanical waves must move through a form of matter. We call what they are moving through medium. What can be a medium?

• gas

• solid

• liquid

• solid, liquid, or gas

what scientific term explains why sirens of an ambulance have different pitch sounds if they are coming toward you verses if they are moving away from you?

• electromagnetic spectrum

• different amplitudes

• Doppler effect

sound waves are what type of wave?

• transverse

• longitudinal

• surface

• electromagnetic

which type of interference would result in smaller waves, when two waves are combined?

• destructive interference

• constructive interference

longer wavelengths will

• be diffracted greater by an obstacle

• be diffracted less by an obstacle

• have a high frequency

when a wave hits a barrier and bonces directly back

• refraction

• defraction

• reflection

• interference

ripples in water are what type of wave

• transverse

• longitudinal

• surface

• electromagnetic