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09SCI - Light and Sound revision

Total questions: 127

Worksheet time: 1hrs 19mins

Name
Class
Date
1.
What is the name of the energy that comes from the sun?
a)
Electromagnetic Radiation
b)
Electromagnetic Conduction
c)
Electromagnetic Convection
d)
Magnelectric Radiation
2.
Which explains why the fork looks different under water?
a)
light can't pass through the glass
b)
the wavelength of light lengthens
c)
the amount of light increases when going through water
d)
light is refracted at an angle
3.

Materials that do not let light pass through them

a)

Reflection

b)

Prism

c)

Opaque

d)

Transparent

4.

A transparent material that separates white light into its component colors.

a)

Opaque

b)

Prism

c)

Refraction

d)

Transparent

5.

This material allows almost SOME of the light to pass through it. This material is:

a)

Transparent

b)

Translucent

c)

Opaque

d)

Transaction

6.

Which wave has the longest wavelength?

a)

A

b)

B

c)

C

d)

None (same wavelength)

7.

Which wave has the highest frequency?

a)

A

b)

B

c)

C

d)

None (same frequency)

8.

What is the relationship between frequency and wavelength?

a)

high frequency --> short wavelength

b)

high frequency --> long wavelength

c)

low frequency --> short wavelength

d)

there is no relationship

9.

What does the outlined picture below illustrate?

a)

Visible Light Spectrum

b)

Electromagnetic Spectrum

c)

Frequency Indicator

d)

Color Line

10.

Which type of light has the highest frequency of this group (be careful of the order!)?

a)

red

b)

yellow

c)

green

d)

blue

11.

Of the visible spectrum, what color has the longest wavelength?

a)

Blue

b)

Green

c)

Yellow

d)

Red

e)

Violet

12.

In the diagram, which letter represents the angle of incidence?

a)

A

b)

B

c)

C

d)

D

13.
Law of reflection state that - The angle of incidence is .................. to the angle of reflection.
a)
equal
b)
double
c)
half
14.
........... – the angle between the normal and the reflected ray.
a)
Angle of incidence
b)
Angle of reflection
c)
Angle of coincidence
d)
Angle of direction
15.
What is reflection?
a)
Reflection is the bouncing  of light off the surface that it strikes on.
b)
Reflection is the absorbing of light off the surface that it strikes on.
c)
Reflection is the bending of light off the surface that it strikes on.
d)
Reflection is the scattering of light off the surface that it strikes on.
16.
........... – the angle between the normal and the incident ray.
a)
Angle of incidence
b)
Angle of reflection
c)
Angle of coincidence
d)
Angle of direction
17.
How does light travel
a)
It curves around corners
b)
Really slow
c)
In a straight line
d)
In circles
18.
Which term describes when light bounces off of a smooth surface?  
a)
Refraction
b)
Transmission
c)
Absorption
d)
Reflection
19.
The imaginary line perpendicular to a reflecting surface is called _____.
a)
crooked line
b)
parallel line
c)
angular line
d)
normal line
20.
The illustration shows a light ray striking an object.
In the illustration, the light ray striking the object is-
a)
absorbed
b)
stopped
c)
reflected
d)
refracted
21.
Section B1a
Given that the angle of incidence = 30 degrees
a. Draw a ray diagram, labelling clearly the normal, incident ray, angle of incidence, reflected ray and angle of reflection accurately.
Which is the correct diagam? 
a)
A
b)
B
c)
C
d)
D
22.
MCQ 02
Why can you see most objects?
a)
A. they emit light
b)
B. light refracts through them
c)
C. light reflects off them
d)
D. they absorb light
23.
MCQ 011
According to the laws of reflection, if i = angle of incidence and r = angle of reflection,
a)
A. i =  r
b)
B. i >  r
c)
C. r >  i
d)
D. i is not equal to r
24.
MCQ 08
If a capital letter R is seen in an ordinary mirror, what does it look like?
a)
A
b)
B
c)
C
d)
D
25.
The imaginary line perpendicular to a reflecting surface is called _____.
a)
crooked line
b)
parallel line
c)
angular line
d)
normal line
26.
What is the line MN called in the given diagram
                               
a)
incident ray
b)
reflected ray
c)
reflecting surface
d)
normal
27.
What is A?
a)
Angle of incidence
b)
Angle of reflection
c)
Incident ray
d)
Reflected ray
28.
a mirror with a surface that curves inward like the inside of a bowl
a)
concave mirror
b)
convex mirror
c)
plane mirror
d)
flat mirror
29.
An image that forms where light seems to come from a point but light rays don't actually meet is a 
a)
virtual image
b)
real image
c)
Inverted Image
d)
Pizza
30.
Convex Mirrors produce...
a)
only virtual images
b)
virtual or real images
c)
only real images
d)
inverted images
31.
Real images are :
a)
Always inverted
b)
Magnified or Diminished
c)
can be obtained on screen
d)
all the above
32.
convex mirrors are
a)
plane mirrors
b)
converging mirrors
c)
diverging mirrors
d)
smaller than concave mirrors
33.

A student is conducting an experiment with four different types of mirrors. Which mirror in the experiment is a convex mirror?

a)

mirror 1

b)

mirror 2

c)

mirror 3

d)

mirror 4

34.

What word means to bend light rays toward each other?

a)

Converging light

b)

Diverging light

c)

Virtual Light

d)

Real Light

35.

A dentist uses a small dental mirror to help magnify teeth in your mouth. What type of mirror is this?

a)

a convex mirror

b)

a concave mirror

c)

a convex lens

d)

a concave lens

36.

Type of mirror used in a convenience store to provide a wide angle view...

a)

Plane

b)

Convex

c)

Concave

37.

Type of mirror used by a dentist to get magnified view of a patient's teeth...

a)

Plane

b)

Convex

c)

Concave

38.

Type of mirror found in a bathroom...

a)

Plane

b)

Convex

c)

Concave

39.

Type of mirror used as a side mirror on a vehicle to provide a wide angle view...

a)

Plane

b)

Convex

c)

Concave

40.

Type of mirror that can produce a real image...

a)

Plane

b)

Convex

c)

Concave

41.

Type of mirror that can produce an inverted image...

a)

Plane

b)

Convex

c)

Concave

42.

Type of mirror that provides a wide angle view...

a)

Plane

b)

Convex

c)

Concave

43.

The size of an object and its image are the same in this type of mirror...

a)

Plane

b)

Convex

c)

Concave

44.

According to the law of reflection the angle of incidence is ____________ the angle of reflection.

a)

less than

b)

greater than

c)

equal to

45.

Type of mirror that can produce a virtual image...

a)

Plane

b)

Convex

c)

Concave

d)

All of the above

46.
How does light behave as it enters these mediums?
a)
continue its path as straight line.
b)
bends toward the normal
c)
bends away from the normal
d)
reflects
47.
What is this called?
a)
refraction
b)
reflection
c)
reconstroction
d)
retraction
48.

When light passes at an angle to the normal from one medium into another in which its speed is higher

a)

it is bent toward the normal.

b)

it always lies along the normal.

c)

it is unaffected.

d)

it is bent away from the normal.

49.

If all other variables are held constant, what happens to the angle of refraction if the angle of incidence increases?

a)

the angle of refraction stays the same

b)

the angle of refraction decreases

c)

the angle of refraction increases

d)

cannot be determined from the information provided

50.

When light passes at an angle to the normal from one medium into another in which its speed is lower

a)

it is bent towards the normal.

b)

it always lies along the normal.

c)

it is unaffected.

d)

it is bent away from the normal.

51.

Based on the image, as light passes from medium 1 to medium 2

a)

light speeds up and bends towards the normal

b)

light speeds up and bends away from the normal

c)

light slows down and bends towards the normal

d)

light slows down and bends away from the normal

52.
In what medium does light travel the fastest?
a)
vacuum
b)
air
c)
water
d)
glass
53.

The visible spectrum is

a)

Colours which make up white light (ROYGBIV)

b)

The amount of refraction that occurs when colour passes through a prism

c)

The splitting up of white light through a prism

d)

Also called a rainbow

54.

The primary colours of light are

a)

Red, blue, green

b)

Blue, indigo, violet

c)

Red, magenta, green

d)

Magenta, cyan, yellow

55.

Which of the following is correct?

a)

Blue + Maroon = Magenta

b)

Green + Blue = Cyan

c)

Red + Blue = Green

d)

Yellow + Cyan = Green

56.

Which colour light is being reflected?

a)

Magenta

b)

Red + Blue

c)

Orange

d)

All colours except for orange

57.

This piggy bank appears as the colour it is because....

a)

Blue and green light is being absorbed into your eyes

b)

Blue and yellow light is being absorbed into your eyes

c)

Blue light is being reflected into your eyes

d)

Blue and green light is being reflected into your eyes

58.

A 'pigment' is

a)

How dark a colour appears

b)

A term used to describe the absorption of light

c)

Chemical that can only reflect certain colours

d)

When two primary colours of light overlap to form a secondary colour of light

59.
What colors are in the rainbow?
a)

Red,orange,yellow,green,blue,indigo,violet

b)

Red,orange,yellow,green,blue,violet

c)

red,orange,orange,yellow,blue,violet

d)

red,orange,yellow,green,blue,blue,violet

60.

When angle of incident (i) equals to critical angle (c) if light is traveled from a denser medium to a less dense medium,

a)

total internal reflection occurs.

b)

angle of refraction is equal to 90 degree.

c)

light is refracted out

d)

light travel in straight line

61.

What is total internal reflection

a)

Where a wave is refracted at the boundary between a dense medium and a less dense medium when the angle of incidence is greater than the critical angle.

b)

Where a wave is refracted at the boundary between a dense medium and a less dense medium when the angle of incidence is smaller than the critical angle.

c)

Where a wave is reflected at the boundary between a dense medium and a less dense medium when the angle of incidence is greater than the critical angle.

d)

Where a wave is reflected at the boundary between a dense medium and a less dense medium when the angle of incidence is smaller than the critical angle.

62.

When will total internal reflection occur?

a)

When light travels from a less dense to a more dense medium

b)

When the angle of incidence is smaller than the critical angle

c)

When the angle of incidence is greater than the critical angle

d)

When the light cannot pass through a medium

63.

When the angle of refraction is 90 °\degree  the angle of incidence is called the... 

a)

Angle of incidence

b)

Critical angle

c)

Angle of total internal reflection

d)

Angle of refraction

64.

For total internal reflection to occur, light must

a)

travel from a more dense to a less dense medium

b)

travel from a less dense to a more dense medium

65.

Fiber optic cables work because of the principle of _____.

a)

total internal refraction

b)

incomplete internal refraction

c)

total internal reflection

d)

partial internal reflection

66.

Which diagram correctly describes the critical angle c for air-water surface?

a)

A

b)

B

c)

C

d)

D

67.

Light travels through a glass block as shown. Which angle is the critical angle for light in the glass?

a)

A

b)

B

c)

C

d)

D

68.

The figure below is an optical phenomenon caused by the refraction of light. What is this effect called?

a)

Dispersion

b)

Mirage

c)

Rainbow

d)

Diffraction

69.

Is a convex lens thicker or thinner in the middle?

a)

Thicker

b)

Thinner

70.

A diverging lens is also known as a ____lens.

a)

refracted

b)

diffracted

c)

convex

d)

concave

71.

What does the word "diverging" mean?

a)

to spread apart

b)

to come together

c)

parallel

d)

perpendicular

72.

A converging lens is also known as a ____ lens.

a)

convex

b)

concave

c)

double

d)

refracted

73.

What does the word "converging" mean?

a)

to separate

b)

to come together

c)

parallel

d)

perpendicular

74.
___ is when light travels through a material and bends.
a)
Diffraction
b)
Dispersion
c)
Mirage
d)
Refraction
75.
The point where the rays meet is known as....
a)
Fire
b)
the focal point
c)
refraction
d)
Plane of the lens
76.

Is a concave lens thicker or thinner in the middle?

a)

Thicker

b)

Thinner

77.
Which describes a convex lens?
a)
triangular in shape
b)
more transparent in the middle
c)
thicker on the edges than in the middle
d)
thicker in the middle than on the edges
78.
White light is made up of:
a)
red, yellow, and blue
b)
no colors
c)
all colors
d)
red, green, and blue
79.
A ___ lens makes objects appear bigger.
a)
concave
b)
convex
c)
prism
d)
flat
80.
Why does green grass look green?
a)
It reflects all colors except green.
b)
It absorbs all colors except green.
c)
It only absorbs green.
d)
The colors mix to make green.
81.
Light will be reflected in many different directions off of a ___ surface.
a)
rough
b)
smooth
c)
flat
d)
mirrored
82.

If you were to accidentally scratch the outermost part of your eye, which part would you damage?

a)

The cornea

b)

The lens

c)

The retina

d)

The pupil

83.

What would happen to your pupils if it's extremely bright outside?

a)

They would let a lot of light into your eyes

b)

They would expand and become very large

c)

They would contract and become very small

d)

They would close up completely

84.

Which part of your eye is most like the film in a camera?

a)

The iris

b)

The retina

c)

The pupil

d)

The lens

85.

What might happen if the lens of your eye became damaged?

a)

Your eyes wouldn't be able to focus properly.

b)

You wouldn't be able to see in color.

c)

You wouldn't be able to see at night.

d)

All the images you saw would be upside-down.

86.

Part of the eye that function to regulate the amount of light entering the eyes is ....

a)

cornea

b)

iris

c)

pupil

d)

lens

e)

retina

87.

An object will clearly visible to the eye if the image falls right into the ....

a)

cornea

b)

iris

c)

pupil

d)

lens

e)

retina

88.

A thin membrane protecting the inner part of the eyes from the outside materials is called ...

a)

cornea

b)

retina

c)

iris

d)

lens

e)

pupil

89.

Part of the eye that the functions to capture images formed by the eye lens is ....

a)

cornea

b)

optic nerve

c)

retina

d)

pupil

e)

iris

90.

The space behind the cornea, in between the cornea and the iris, filled with a thin watery liquid called ....

a)

cillary muscle

b)

liquid jelly

c)

tears

d)

aqueous humor

e)

optic nerve

91.

Part of the camera that has the same function as retina of the eye is ....

a)

diaphragm

b)

film layer

c)

camera lens

d)

the blitz lamp

e)

tripod

92.

why pupil gets smaller in bright light?

a)

to get as much light as possible.

b)

to prevent damaged to eye due to bright light.

c)

to make sure light gets refracted.

93.

what is the function of iris in the eye?

a)

it detect colours.

b)

it focuses the light.

c)

it controls the size of pupil.

94.

The image formed on the retina is _____________

a)

upside

b)

upside down

c)

rotated at 90 degrees angle.

95.

Which part of the camera focuses light?

a)

sensor

b)

shutter

c)

lens

96.

Nerve impulses are sent to the brain along the _____________

a)

optic nerve

b)

nasal nerve

c)

pulmonary nerve

97.

Which one of the following is true both for human eye and digital camera?

a)

the sensor detects light.

b)

the aperture controls the amount of light that enters.

c)

the lens focuses the light.

98.

Which one of the following is not true for human eye?

a)

the picture that forms on retina is upside down.

b)

the pupil size changes due change in amount of light.

c)

the iris is the transparent part of the eye.

99.

The light energy transferred by sensor into electrical signals is stored on _________________ in a digital camera.

a)

shutter

b)

aperture

c)

memory card

100.

What is the name given to the type of material which will not let any light pass through?

a)

Opaque

b)

Translucent

c)

Transparent

101.
If you want to change the pitch of a sound, you have to change the ___
a)
frequency
b)
amplitude
c)
speed
d)
volume
102.
This is the unit used to measure the volume of a sound. 
a)
Decibel
b)
Medium
c)
Vibration
d)
Oscilloscope
103.
This is what you get when sound waves are reflected, or bounce back, off of a hard surface.
a)
Amplitude
b)
Pitch
c)
Volume
d)
Echo
104.
The speed of a sound wave depends on
a)
the frequency
b)
the medium
c)
both air temperature and medium
d)
the air temperature
105.

Bats use ________ to locate mosquitoes in the air.

a)

solar

b)

ecology

c)

echolocation

d)

refraction

106.
The number of wavelengths that pass a point each second
a)
frequency
b)
wavelength
c)
pitch
d)
amplitude
107.
A disturbance that travels through a medium as a longitudinal wave
a)
sound
b)
wavelength
c)
pitch
d)
frequency
108.
The number of wavelengths that pass a point each second
a)
frequency
b)
wavelength
c)
pitch
d)
amplitude
109.
When a sound is louder what measurement gets bigger?
a)
Frequency 
b)
Amplitude 
c)
Wavelength 
d)
Crest
110.

One important characteristic of sound waves is that they are ___________________ waves.

a)

mechanical

b)

short

c)

ultraviolet

d)

primary

111.

Sound waves can NOT travel through

a)

Air

b)

Water

c)

Earth

d)

space

112.

Longitudinal waves means that the disturbance of the wave travels in different directions as the wave.

a)

True

b)

False

113.

This is a visual of a sound wave. It is an example of _____________________ wave.

a)

a mechanical

b)

a longitudinal

c)

both a mechanical and longitudinal

114.

What is the source of a sound wave?

a)

Electricity

b)

Vibration

c)

Light waves

d)

Tiny nuclear explosions

115.

A wave in which the direction of vibration of medium is in the same direction as that in which the wave is traveling

a)

longitudinal wave

b)

ocean wave

c)

transverse wave

d)

mechanical wave

116.

The unit for measuring frequency is the ---

a)

joule

b)

hertz

c)

gram

d)

newton

117.
The shorter the wavelength the 
a)
shorter the frequency
b)
higher the freuqnecy
c)
frequency stays the same
d)
less energy
118.
What part of your body sends messages from your ears to your brain?
a)
optic nerve
b)
auditory nerve
c)
ear canal
d)
semi-circular canals
119.

The ear has three parts

a)

the cochlea, the eardrum and the ear canal

b)

the outer, middle and inner ear

c)

the outer ear, earwax and ossicles

120.
When sound waves cause the eardrum to vibrate, these vibrations are immediately passed on to the_________.
a)
outer ear and ear canal
b)
inner ear
c)
tiny hairs
d)
three small bones in the middle ear
121.
What is #13?
a)
Eardrum
b)
Anvil
c)
Hammer
d)
Cochlea
122.
What is #19?
a)
Semicircular Canals
b)
Ear Canal
c)
Auditory Nerve
d)
Cochlea
123.
What is #2?
a)
Ear Canal
b)
Pinna
c)
Hammer
d)
Anvil
124.

Inner ear includes:

a)

pinna and ear canal

b)

ossicles

c)

eardrum

d)

cochlea - auditory nerve

125.

The cochlea is like a ...

a)

spiral

b)

square

c)

line

126.

Which part is where vibrations are turned into nerve impulses?

a)

E

b)

H

c)

C

d)

I

127.

The cells shown at J are the

a)

ear cells

b)

cochlea cells

c)

nerve cells

d)

hair cells

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