Light & Sound

Question 1

What’s an example of refracted light?

Answer 1

A rainbow.

Question 2

Give an example of a transparent object.

Answer 2

A transparent object would be glass or plastic. Light can go through transparent objects clearly.

Question 2

What is an example of artificial light?

Answer 2

A light bulb.

Question 2

What is the definition of pitch?

Answer 2

Pitch is the lowness or highness of a sound.

Question 2

What is the loudness of sound measured by?
A. Decimals
B. Doughnuts
C. Decibals (dB)

Answer 2

C. Decibels (dB)

Question 3

What direction does light travel in?

Answer 3

A straight line.

Question 6

Give an example of a translucent object.

Answer 6

A translucent object would be paper, or a leaf. Some light can still be seen through these objects.

Question 6

What is the definition of refraction?

Answer 6

Refraction happens when light bends or changes its angle as it passes from one material to another.

Question 7

What is an animal that uses echolocation to locate something?

Answer 7

Bats, or whale species.

Question 8

Does the moon reflect or emit its own light?

Answer 8

The moon reflects the suns’ light

Question 10

What is an example of natural light?

Answer 10

The sun, or lightning.

Question 11

Give an example of an opaque object.

Answer 11

An opaque object would be a black curtain. No light can pass through opaque objects.

Question 12

Why do we see lightning before we hear thunder?
A. Our eyes are in front of our ears.
B. Light travels faster, so it will reach us before sound does.

Answer 12

B. Light travels faster, so it will reach us before sound does.

Question 13

What is definition of vibration?

Answer 13

A quick back and forth motion.

Question 14

The colour black ___________ light.
A. Reflects
B. Absorbs
C. Emits

Answer 14

B. Absorbs

Question 15

True or false: sound cannot pass through solids and liquids.

Answer 15

False. Sound can travel through solids and liquids where there is air.

Question 16

What’s the definition of absorb? (To do with light).

Answer 16

Absorb means to take in (light).

Question 17

What makes an orange (the fruit) the colour orange?

Answer 17

When light hits the orange, it absorbs all the colours except orange, which is reflected.

Question 18

What’s something that emits its own light?

Answer 18

The sun or car lights.

Question 20

What’s something that reflects light?

Answer 20

A safety reflector on a bike or vest.

Question 21

What is an example of a material that absorbs sound?

Answer 21

A carpet

Question 22

What is an example of a material that reflects sound?

Answer 22

A smooth surface like a mirror.

Question 23

What is the definition of reflection? (To do with light)

Answer 23

Reflection happens when light bounces off an object instead of being soaked up.

Question 24

True or false: when an object vibrates quickly it makes a low-pitched sound.

Answer 24

False. When an object vibrates quickly it makes a high-pitched sound.

Question 25

The colour white ____________ light. A. Absorbs B. Emits C. Reflects

Answer 25

C. Reflects

Question 26

What type of material is a pencil? A. Opaque B. Transluscent C. Transparent

Answer 26

A. Opaque

Question 27

when you put a pencil in water it is A.reflection B.refraction

Answer 27

B.refraction

Question 28

True or false: you can hear in space

Answer 28

false: you can not hear in space without a earbud | there is no air in space, therefore, there is nowhere for sound waves to travel!

Question 29

when you put a pencil in water A.reflection B.refraction

Answer 29

B.refraction

Question 30

What does ROYGBIV stand for?

Answer 30

Red orange yellow green blue indigo violet

Question 31

What does black light do? A.reflect B.absorb

Answer 31

B.absorb

Question 32

Can you clean stuff with sound?

Answer 32

Yes

Question 33

What does yellow light do on a yellow rubber ducky? A. it is absorbed into the yellow ducky and we don't see any colour; or B. it reflects off the yellow ducky and we see yellow

Answer 33

B. reflects off so we see yellow!

Question 34

When sunlight shine's on to a blue surface what do you see A. Yellow B. Violet C. Blue

Answer 34

C. Blue because it reflects blue.

Question 35

why do we see lightning before we hear thunder?

Answer 35

Light travels faster than sound

Question 36

CAN LIGHT change direction

Answer 36

yes when it reflects off a smooth surface (like a mirror)

Question 37

What is a hypothesis?

Answer 37

An informed guess

Question 38

What does modify mean?

Answer 38

Change

Question 39

Which is hotter-lightning or the surface of the sun?

Answer 39

Lightning because it can get as hot as 28 000 degrees Celcius!

Question 40

Which material ABSORBS red? A. A red curtain B. A purple rug C. A red rose

Answer 40

B. A purple rug absorbs the colour red and reflects the colour purple only - that is why we see purple!

Question 41

since sunlight appears to have no colours,we call it _____ light A.blue B.orange C.white

Answer 41

C.)White light

Question 42

Why can you hear an airplane over there but it's really above you?

Answer 42

Because airplanes are too fast for sound

Question 43

Can you make a telephone with cups and a | Long thin, string-like object?

Answer 43

Yes you can (i.e. our telephone cup experiment)

Question 44

Sound needs to be ------- kHz to---------- kHz to clean objects A.123 199 B.150 400 C.200 600

Answer 44

B.150 400

Question 45

What is the material of a mirror A) opaque B)translucent C)transparent

Answer 45

A)opaque

Question 46

What does absorb mean

Answer 46

Take in (light)

Question 47

What does echo mean

Answer 47

It means to hit a object and come back

Question 48

When didn't the ribbon work (with the telephone cup experiment?)

Answer 48

When the ribbon was loose/limp - Because it couldn't hold the vibration of the sound passing through.

Question 49

why do we see lightning before we here thunder

Answer 49

thunder is the sound that lightning makes - lightning travels faster than the sound of thunder.

Question 50

What does refraction mean A.happens when light bends or changes its angle as it passes from one material to another. B.light travels in a straight line

Answer 50

A.happens when light bends or changes its angle as it passes from one material to another. (i.e. a rainbow!)

Question 51

name two animals that use echolocation

Answer 51

bats and whales

Question 52

What material is sunglasses A) transparent B)opaque C)translucent

Answer 52

A) transparent

Question 53

What does excessive mean?

Answer 53

Too much (i.e. excessive light or excessive sound can be dangerous)

Question 54

What does sunglass protect you from A. Excessive light B. Excessive sound

Answer 54

A. Excessive light

Question 55

The outer ear is made up of three things the ________ the ________ and the__________. A. outer; middle; inner nerves B. three tiny bones; cochlea; ear drum C. earflap; ear canal; eardrum

Answer 55

C. earflap; ear canal; eardrum

Question 56

How does echolocation work?

Answer 56

Using sound to orient or locate.

Question 57

Light travels in a straight line but when it passes through another medium such as water it may bend and change direction this is called

Answer 57

Refraction

Question 58

What is more decibels (dB) vacuum or a shout

Answer 58

Shout

Question 59

What is the highest decibels (dB)? (Think of the chart with the whisper, jackhammer, etc.)

Answer 59

Airplane taking off (130 dB)

Question 60

in water why does fish look so deep when u look down

Answer 60

it is refraction

Question 61

Harold wants a material to cover his whole car to protect it from the sun. What would he use? 1. plastic 2. sheets 3. string

Answer 61

2.sheets is the answer.

Question 62

What is louder a quiet street or a whisper

Answer 62

a quiet street

Question 63

What does reflect mean?

Answer 63

Bounce back

Question 64

Can sound travel through solids?

Answer 64

yes it can

Question 65

When sunlight shines on a white surface we see

Answer 65

White

Question 66

A guy is really curious about what WHITE blinds in a window do to light. Do they: A. Absorb light B. Reflect light C. Refract light

Answer 66

B. White blinds would reflect light.

Question 67

Does a parrot speak in low or high decibles?

Answer 67

High decibles

Question 68

A.)light that occurs in nature is;______light. e.g.: ________ B.)light that is created by people and does not occur naturally is________light. e.g;__________

Answer 68

a) natural light. e.g.: sun/lightning | b) artifical light. e.g.: lamp

Question 69

When DID the ribbon work (in the telephone cup experiment)? Why?

Answer 69

The ribbon worked when it was pulled tight so that the sound waves could travel through it.

Question 70

True or false: When an object vibrates slowly, it makes a high-pitched sound.

Answer 70

False. When an object vibrates slowly, it makes a low-pitched sound. (Remember - "Slow & Low; Quick & High")

Question 71

Traffic signs are an example of what? A. Emitting light B. Producing light C. Reflecting light

Answer 71

C. Reflecting light

Question 72

Name something that protects ears from excessive sound. (Excessive = too much).

Answer 72

Ear muffs

Question 73

Name an artificial source of light.

Answer 73

A lamp.

Question 74

Name an instrument that makes a HIGH-pitched sound.

Answer 74

A flute or a penny whistle

Question 75

Name an instrument that makes a LOW-pitched sound.

Answer 75

A tuba or a drum

Question 76

Name the item in the list that is NOT a property of light: a. light travels in straight lines b. light can be refracted c. light can be evaporated

Answer 76

c. light can be evaporated (this is NOT a property of light)

Question 77

What property of light is demonstrated when a light shines on a black surface?

Answer 77

Light being absorbed is the property of light that is shown.

Question 78

What property of light is demonstrated when water distorts an object in it? (i.e. a spoon in a cup of water).

Answer 78

Refraction is the property of light that is shown.

Question 79

What is the amalgamation of light and sound called?

Answer 79

JUST KIDDING! This is Mrs. Salverda keeping you on your toes! CLICK 5 & move on! :D

Question 80

Finish this sentence that Mrs. Salverda taught us: "Slow and low, quick and ________." (Think about the actions we did for remembering vibrations and pitch).

Answer 80

high!

Question 81

What property of sound is demonstrated by Mrs. Salverda's guitar and ukelele strings?

Answer 81

Pitch (i.e. different sized guitar strings make different kinds of vibrations and therefore, different pitch levels, or sound!)

Question 82

What property of sound does the red mirror demonstrate when we put is on the end of the wrapping paper tubes and listened to the ticking timer?

Answer 82

The red mirror demonstrates sound being reflected.

Question 83

Put the following parts of the ear in order of how sound enters: auditory nerve (to the brain), ear drum, cochlea 1. __________ 2. ___________ 3. ___________

Answer 83

1. ear drum 2. cochlea 3. auditory nerve (to the brain)

Question 84

Why is a rainbow colourful?

Answer 84

White light from the sun REFRACTS off small rain droplets in the sky, causing the light to bend and show its colours.

Question 85

What colours are actually in "The Dress?"

Answer 85

FREE-BEE! Blue & Black!! ;-) Click 5 and move on! (Even if you saw White & Gold!)

Question 86

Can sound go on to a vibration with a tuning fork to a desk to make a new/louder sound? (Hint: think about the experiment with Mr. Salverda)

Answer 86

Yes - the sound vibrations travel from the tuning fork into a sounding board (like a hollow desk, or an empty cup).

Question 87

Describe what this part of the ear does: the Pinna

Answer 87

The Pinna collects sounds like a funnel.

Question 88

Describe what this part of the ear does: Ear Canal

Answer 88

The Ear Canal carries sound to the ear drum. It also produces ear wax.

Question 89

Describe what this part of the ear does: The Eardrum

Answer 89

The Eardrum vibrates with sound waves, and carries the sound to the three tiny bones.

Question 90

Describe what this part of the ear does: The Cochlea

Answer 90

The Cochlea changes vibrations into signals.

Question 91

Describe what this part of the ear does: Nerves

Answer 91

Nerves carry sound signals to the brain.

Question 92

What does sunscreen protect you from? A.too much sound B.too much sun

Answer 92

B.too much sun

Question 93

What do earplugs protect you from? A.too much sound B.to much sun

Answer 93

A.too much sound

Question 94

what part is the Eardrum from A.outer ear B.middle or C.inner ear

Answer 94

B.middle ear

Question 95

a glass cup is A. opaqe B. transluscent C. transparent

Answer 95

C.tranparent