Waves
What is a wave?
Is an oscullation or vibration that transfers energy od information.
Grasshoppers make sounds that they can/cannot hear
cannot
What produces a sound wave?
vibration
The pitch of a sound is related to
frecuency
What continent is Ecuador on?
Ecuador is a Latin American country and therefore is located in America.
Name the 6 features of a wave
amplitude, wavelenght, frecuency, crest, peak, trough
a ... sound has a bigger amplitude than a ... sound
loud, soft
How far does sound travel in air?
340 m/s
a high pitch corresponds to a sound with a...
high frequency
In what year did World War II start?
1939
Complete the sentence
In a compression the coils of the spring are...
close together
Frequencies above 20,000 Hz are called ...
ultrasound
In metals like steel it can travel at...
5000 m/s
You can use an amplifier to make the sound...
louder
Which country is shaped like a boot?
Italy
In a ... the oscillation is parallel to the direction of the wave.
longitudinal wave
Frecuencies below 20 Hz are called ...
infrasound
Which is faster: sound or light? and why ?
light, because it is almost a million times faster than sound
Parts of the ear:
pinna, ossicles, eardrum, auditory cannal, cochlea, auditory, nerve and semi-circular cannals
Where in the body is insulin produced?
in the pancreas
Yo can do an ... wave and ... wave on a slinky/spring
transverse and longitudinal
Name 6 examples of animals that has a big audible range
cat, bat, dog, dolphin goldfish, whale
Can light can travel through a vacuum?
Yes
You measure the sound intensity in ...
decibels (dB)
What is the best-selling music album in history to date?
"Thriller" by Michael Jackson