Quiz about Science 7 - Sounds

Question 1

An ________ is a reflected sound.

Accepted Answer

Echo

Answer

Vibration

Answer

Pitch

Answer

Volume

Question 2

_____________ is the highness or lowness of a sound.
(Hint: Think about our sound song.)

Accepted Answer

Pitch

Answer

Amplitude

Answer

Volume

Answer

Vibration

Question 3

__________ means to move back and forth quickly.

Accepted Answer

Vibration

Answer

Pitch

Answer

Amplitude

Answer

Echo

Question 4

______________ is the amount of energy in a sound wave.

Accepted Answer

Amplitude

Answer

Echo

Answer

Volume

Answer

Vibration

Question 5

Sound is a form of energy produced by ______________.

Accepted Answer

vibrations

Answer

distances

Answer

prisms

Answer

Ms. Crews

Question 6

Your ear changes the vibration of sound waves into signals. The signals are then interpreted by your brain.

Accepted Answer

True

Answer

False

Question 7

Sound waves travel the FASTEST through _____________.

Accepted Answer

solids

Answer

gases

Answer

liquids

Question 8

If a sound has a high amplitude then it also has a ____________!!!

Accepted Answer

high volume

Answer

fast echo

Answer

slow pitch

Answer

low volume

Question 9

Sound waves travel the SLOWEST through _____________.

Accepted Answer

gases

Answer

solids

Answer

liquids

Question 10

Sound is a form of?

Accepted Answer

energy

Answer

pitch

Answer

volume

Question 11

An object that does not vibrate cannot produce

Accepted Answer

sound

Answer

light

Answer

heat

Answer

electricity

Question 12

A place where no sound exists is...

Accepted Answer

space

Answer

in the air

Answer

under water

Answer

all of the above

Question 13

__________ means to move back and forth quickly.

Accepted Answer

Vibration

Answer

Pitch

Answer

Amplitude

Answer

Echo

Question 14

The volume of a sound is measured in units called ________

Accepted Answer

decibels

Answer

liters

Answer

sound waves

Answer

inches per minute

Question 15

Why is sound able to travel faster through a solid than a gas?

Accepted Answer

Solid molecules are packed tightly.

Answer

Gas molecules are packed tightly.

Answer

Sound does not travel faster through a solid than a gas.

Answer

Gas molecules move slowly.

Question 16

Sound does not travel in space because

Accepted Answer

There is no matter in space.

Answer

Space is too far away.

Answer

Space is the final frontier

Answer

Space has planets.

Question 17

You stand outside a room that has the doors and windows closed. Why can you still hear sounds made inside the room?

Accepted Answer

Vibrations travel through the door and the window

Answer

Vibrations are absorbed in the doors and windows

Answer

Vibrations are reflected inside the room

Answer

Vibrations echo in the room

Question 18

Why do we see lightning before we hear the thunder?

Accepted Answer

Light travels faster than sound

Answer

Our eyes trick us

Answer

they're two separate things

Question 19

Which of these is NOT a medium?

Accepted Answer

light

Answer

air

Answer

wood

Answer

metal

Question 20

When people speak their ________ vibrate.

Accepted Answer

vocal chords

Answer

ear drums

Answer

ears

Answer

tongue

Question 21

Sarah and Maria made a telephone using two cans and a string. It was a very long string. Maria went upstairs in her house and Sarah stayed downstairs. Maria spoke softly into the can. "I can hear you!' Sarah said back. How can this happen?

Accepted Answer

Sound waves travel through solids like the string.

Answer

Sound waves travel through a vacuum.

Answer

Sound waves travel from high to low.

Answer

Maria talked so loudly that Sarah could hear her without the phone.

Question 22

Will a homemade telephone made of two cans and a string work better with a tightly-woven string or a loosely-woven string?

Accepted Answer

a tightly woven string because sound waves travel best through dense materials

Answer

a tightly woven string because it will not come apart as easily

Answer

a loosely woven string because the sound waves have more room to move

Answer

a loosely woven string because sound waves travel best through less dense materials

Question 23

The rate in which sound waves occur is?

Accepted Answer

frequency

Answer

vibration

Answer

echo

Question 24

What happens to our hearing if we listen to loud noises all the time?

Accepted Answer

we start to experience hearing loss

Answer

We appreciate music better

Answer

we get a ringing in our ears

Question 25

How can we protect our ears from hearing loss?

Accepted Answer

All of the above

Answer

wear ear plugs

Answer

put our fingers in our ears

Answer

Try not to listen to loud things

Question 26

What is this?

Accepted Answer

Cochlea

Answer

Pinna

Answer

Hearing Nerve

Answer

Ear Drum

Answer

Anvil

Question 27

The cochlea is found in which section of the ear?

Accepted Answer

inner

Answer

outer

Answer

middle

Question 28

When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the_________.

Accepted Answer

three small bones in the middle ear

Answer

outer ear and ear canal

Answer

inner ear

Answer

tiny hairs

Question 29

Which part of the ear acts as the sound collector?

Accepted Answer

outer ear

Answer

ear canal

Answer

middle ear

Answer

inner ear

Question 30

How does increasing the amplitude of a sound wave affect the sound?

Accepted Answer

it makes the sound louder

Answer

it makes the sound travel faster

Answer

it increases the wavelength of the sound

Answer

it increases the frequency of the sound

Question 31

What happens in the inner ear?

Accepted Answer

Sound waves are converted into nerve impulses.

Answer

Sound waves are captured.

Answer

Sound waves move deeper into the ear.

Answer

Sound waves are reflected.

Question 32

Where does HEARING (interpreting the nerve impulses) take place?

Accepted Answer

brain

Answer

outer ear

Answer

middle ear

Answer

inner ear

Question 33

Bats use ________ TO LOCATE MOSQUITOES IN THE AIR.

Accepted Answer

echolocation

Answer

solar

Answer

ecology

Answer

evolution

Question 34

Your inner ear allows you to hear and controls your _____________?

Accepted Answer

Balance

Answer

Movements

Answer

Smell

Answer

Temperature

Question 35

What is the frequency range of hearing for a human being?

Accepted Answer

20-20,000 hertz

Answer

10-200 hertz

Answer

300-2,000 hertz

Answer

2,000-30,000

Question 36

What part of the ear sends signals to the brain?

Accepted Answer

auditory nerve

Answer

optic nerve

Answer

ear canal

Answer

middle ear

Question 37

Which part of the ear is shaped like a snail shell?

Accepted Answer

cochlea

Answer

eardrum

Answer

auditory nerve

Answer

anvil

Question 38

In which part of the ear is sound changed into electrical signals which are then sent to the brain?

Accepted Answer

inner ear

Answer

outer ear

Answer

middle ear

Answer

hammer

Question 39

The main purpose of the Middle Ear is to amplify sound waves

Accepted Answer

True

Answer

False

Question 40

Which device measures sound waves?

Accepted Answer

Oscilloscope

Answer

Stethoscope

Answer

Radio

Answer

I don't know

Question 41

Sound waves travel farther through ________ media, like water or steel.

Accepted Answer

Dense

Answer

Light

Question 42

If you had to make some headphones to isolate sound, which material would you use?

Accepted Answer

Soft, because they absorb sound.

Answer

Hard, because they reflect sound.

Question 43

Measure of how high or low a sound is

Accepted Answer

pitch

Answer

amplitude

Answer

compression

Answer

speed of sound

Question 44

If you increased the tension on a guitar string the pitch would

Accepted Answer

increase

Answer

decrease

Answer

stay the same

Answer

the string would be silent

Question 45

If you hear a LOUD sound, what should you not do?

Accepted Answer

Get closer/ Make the sound louder

Answer

Use ear plugs

Answer

Turn down the music or move away from the sound

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