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Worksheets2019-20 Sound: What is Sound?
Total questions: 19
Worksheet time: 10mins
Which part of your body hears sounds?
eyes
ears
brain
nose
What does a sound do to the PARTICLES in the air?
makes them VIBRATE
makes them MOVE in a DOTTED line
makes them STOP
Can sounds just happen by THEMSELVES?
yes
no
What is needed for a SOUND to happen?
a WAVE in the air
a PEBBLE to create the sound
a SOURCE or ACTION must cause sound wave to START
What are some other kinds of ENERGY besides Sound?
physical, chemical, and particle
moon, sun, and planetary
light, heat, electrical, motion, wind, and water
What are the 2 PARTS of a sound wave?
particles are SQUEEZED together AND then particles are SPREAD OUT
particles are SQUEEZED together AND then particles are funneled into a LINE
Particles are SPREAD OUT AND then they are vacuumed into the EAR
What else moves in ALL directions like SOUND?
WATER when a PEBBLE is thrown in and causes RIPPLES in all directions
SAND when people STEP in it
SILLY PUTTY when it is SQUEEZED by someone
What 3 things do ALL sound waves have in COMMON?
1) have 1 PART
2) never vibrate
3) travel in 1 direction
1) vibrate
2) travel in ALL directions
3) have 2 PARTS
1) have 3 PARTS
2) vibrate
3) travel in 3 directions
How does ENERGY affect VOLUME?
MORE energy causes SOFTER volume
LESS energy causes LOUDER volume
MORE energy causes LOUDER volume
What is the DIFFERENCE between VOLUME and PITCH?
VOLUME is how LOUD it is and
PITCH is how HIGH or LOW the sound is
VOLUME is how HIGH or LOW the sound is and
PITCH is how LOUD it is
VOLUME is how PRETTY something is and
PITCH is how LONG it is
How do we MEASURE sound?
Terra watts
Decibels
Rings
Why does SOUND travel EASIER thru liquids than thru AIR?
PARTICLES in liquid are FARTHER apart
PARTICLES in liquid MOVE out of the way
PARTICLES in liquid are CLOSER together
Why can LOUD sounds be heard FARTHER away than quiet sounds?
LOUD sounds have MORE energy
LOUD sounds have LESS energy
QUIET sounds have MORE energy
Why are you more likely to hear an ECHO in a TILED room?
B/c echoes are sound waves that are absorbed
B/c echoes are sound waves that bounce off HARD surfaces and return
List the parts of the EAR in order in which the SOUND reaches our BRAINS?
nerves---cochlea---middle ear---ear drum---ear canal
ear canal---ear drum---middle ear bones---cochlea---nerves
middle ear---cochlea---ear canal---nerves---ear drum
How is the EARDRUM like a real drum?
you can hit it and make noise
it is small and makes lots of noise
tightly stretched skin and sound waves vibrate when they hit it
Name 2 ways to PROTECT yourself from HEARING LOSS.
avoid loud noises and wear ear protection for sports
wear glasses, always yell instead of talking, and get a job in a factory
raise you hand and don't talk when adults are talking
What does the LIQUID in the COCHLEA do?
MOVES to the inner ear and then moves ear drum
VIBRATES when bones of MIDDLE EAR vibrates
it EVAPORATES when a sound is heard
Why are some people HEARING IMPAIRED or DEAF?
they like it like that
their moms chose that for them
illness, injury, or birth defects
