Type
Crossword
Description

optical device used for viewing very small objects; has at least two lenses: the objective lens and the eyepiece lens microscope
device for viewing distant objects; made up of two short refracting telescopes fitted together binoculars
optical device for viewing very distant objects; there are two types: reflecting and refracting telescope
describes materials that allow light to pass through with little or no reflection; ex., glass transparent
high energy electromagnetic radiation; can be used to make images of the interior of the body Xrays
bending of light as it travels from one material to another material refraction
any device that uses light is called an: optical device
curved piece of glass or other transparent material that refracts light in a predictable way lens
special lining on the back of the eye that sends messages to the brain, translating them into an image retina
opening in the eye that lets in light pupil

Mirrors and Lenses Crossword

Type
Crossword
Description

We use this to see our reflection. mirrors
Light from us bounces off of a mirror to show us how we look reflection
Our eyes go through this process to give us sight refraction
if we look at a table and cannot see through it, the table is _____. opaque
This object uses different lenses to magnify and enhance the apperance of an object we are observing. microscope
This either refracts, reflects, or absorbs light to change the way we view objects. lense
Most windows are ______, because we can see through them and they absorb a little light. Transparent
tranfers impulse to the brain for sight Optic Nerves
Where a wave moves apart Rarefaction
A sensitive membrane at the back of the inside of an eye retina
An outward-curved lens convex
______ makes things visible light
An inward-curved lens concave
A ______ regulates the amount of light entering the eye pupil
The ______ focuses light waves on the retina focal point
The ______ refract light entering the eye and sends it to the back of the eye cornea
The act of seeing sight
This device uses highly concentrated light laser
transmission of some light but can cause it to disort translucent
Able to be seen visible
An optical tool that uses refraction to seperate different wavelengths that make up white light prism

Refraction and Lenses Crossword

Type
Crossword
Description

is an increase or decrease in size of an image produced by an optical system compared to the true size Magnification
a transparent refracting device that is thicker in the middle than at the edges concave lens
a transparent refracting device that is thinner in the middle than at the edges concave lens
the separation of light into its spectrum dispersion
concave on both sides biconcave
convex on both sides biconvex
light rays coming out of it come together at a point – they converge converging lens
causes a beam of parallel rays to diverge after refraction, as from a virtual image diverging lens
images that are formed in locations where light does not actually reach virtual image
an image that is located in the plane of convergence for the light rays real image
refracting and focusing light so that objects appear clearly contact lenses
distance of an object that is placed from the point of an incidence on the mirror object distance
distance from the point of incidence of the mirror to the image image distance
a convex lens that is used to make a magnified image of an object magnifying glass
bending of a wave when it enters a medium where its speed is different Refraction
can calculate the image distance for either real or virtual images and for either positive on negative lenses thin lens equation
point at where rays or waves meet after reflection or refraction focal point
a technique for generating an image by tracing the path of light ray tracing
angle of reflection equals the angle of incidence flat mirror
the distance between the lens and the image sensor when the subject is in focus focal length

Optics Crossword

Type
Crossword
Description

A type of optical telescope that uses a lens as its objective to form an image. refracting
Is an optical telescope which uses curved mirrors that reflect light and form an image. reflecting
The _____lens in a telescope focuses the light to a point in front of the eyepiece. objective
Another word for nearsightedness myopia
Images are formed behind the retina, not on it, and this causes close-up images to be blurry. hyperopia
The most common cause of blindness cataracts
The pupil gets____in bright light. smaller
The aqueous humour is the ____fluid, that fills the front part of the eyeball. clear
The ___ spot is where the optic nerve leaves the retina. blind
The coloured part of the eye. iris
The _____body is a circular muscle that enables the lens to change shape for focusing. ciliary
The _____is a layer of blood vessels that nourishes the eye. choroid
With refraction of light no image is formed when the object is at the_____point. focal
A lens that makes light rays come together is called a _____lens. convex
These lenses make light spread apart. concave
A _____and dark-coloured surface will absorb light the most. rough
Concave mirrors are also called _________mirrors converging
Your image will be upright, but much smaller than what you normally see in this kind of mirror. plane
The ability to let light rays in. transparent
Light can partially get through.. translucent
Allows no light to get through. Opaque
,Light can travel in a straight line just like _____. waves
When the sunlight passes from the air through rain droplets before reaching your eyes, what is this called? dispersion
Different _______of light have different wavelengths. colours
Where does the energy of the electromagnetic spectrum come from? sun
,As the wavelength gets shorter, both the frequency and energy _______. increase
Which rays are the highest forms of electromagnetic radiation? gamma
Waves where the particles of the medium vibrate with an up and down motion. transverse
What is the branch of science called that deals with the study of waves that travel through the Earth? seismology
What kind of wave can you see on the water on a windy day? surface

Different Lenses Crossword

Type
Crossword
Description

curved surface that bends light by refraction lens
diverging lens convex
converging lens concave
point which all incident rays pass through focal point
light strikes a surface and comes back at a different angle reflection
bending of light rays refraction
path of a light ray optical axis
light striking a non-shiny surface diffuse reflection
a dispersive object prism
distance between object and ooptical element object distance
a lens to see outerspace telescope
a mirror or shiny surface creates this specular reflection
window glass transparent
frosted glass translucent
painted glass opaque
angle between incident ray and normal angle of incidence
angle between reflected light and normal angle of reflection
the angle of incidence equals the angle of reflection law of reflection
an illusion created by light image
distance between the lens and focal point focal length

Mirrors and Lenses Crossword

Type
Crossword
Description

A measure of how much a ray of light bends when it enters that material indexorefraction
a concave lens can only produce ______________ virtual images
an object positions determines whether a convex lens forms a __________ or a virtual image Real image
when parallel rays of light hit a smooth surface regular reflection
an image of a distant object caused by refraction of light mirage
an upright image that forms where light seems to come from virtual image
a mirror with a surface that curves inward concave mirror
the point at which rays parallel to the optical axis meet focalpoint
images formed by __________ are always smaller than the object convex mirror
a flat sheet of glass that has a smooth, silver colored coating on one side planemirror
a lens that is thinner in the center than the edges convexlens
an imaginary line that divides a mirror in half optical axis
when a parallel ray of light hit a bumpy surface diffuse reflection
a lens thicker in the center than the edges concavelens
a curved piece of glass or other transparent material lens
a copy of a image formed by a reflected or refracted rays of light image

Refraction and Lenses crossword puzzle

Type
Crossword
Description

A shaving mirror is this kind of mirror concavemirror
A shaving mirror is this kind of mirror lenticularlens
Cause light ray from a specific focal point to bend diverginglens
Have curvature in only one directon cylindricallens
Spoon convex
Glasses or other transparent substance with curved sides lenses
A mirror with a flat reflective surface flatmirror
What most lenses are made out of glass
Used in lenses of sunglasses convexmirror
Binoculars use these concavelens
Distance from the center of the lens to the focal point focallength
Concave-convex lenses meniscuslens
Consists of several simple lenses compoundlens
Cause light rays to bend to a focal point converginglens
Microscopes use this type of lens convexlens
First lens ever used nimrudlens
Has its optical surface broken up into narrow rings fresnellens
This point of a lens is generally noted with a capital F focalpoint
Change in direction of a wave due to a change in its transmission medium refraction
Telescopes concave

Light Crossword

Type
Crossword
Description

Light travels fastest in this. Vacuum
Light slows down when it goes through a denser object. refraction
The angle of ____________is the same as the angle of refelction. incidence
An object that creates light. luminous
Used to create rays of light to investigate reflection and refraciton. raybox
The unit of measurment of the speed of light __________ per second. metres
The type wave that light travels in. transverse
Used by people to detect light. eyes
Focuses light in the eye. lens
A dark area caused by an object blocking light. shadow
The imaginary line at right angles to the mirror. normal
The shape of a lens used to focus light to a point. convex
Lets all light through. transparent
Lets some light through. translucent

The Eye Crossword

Type
Crossword
Description

carries blood away from the heart ARTERY
carries blood to the heart vain
white section of the eye sclera
receives images retina
opening that allows light in pupil
refracts light in order to focus it on the retina. lens
controls light entering the pupil iris
transparent part of the eye that covers the eye cornea
between the cornea and the iris anteriorchamber
between the iris and the lens posteriorchamber
yellow area surrounding the fovea that acts as sunglasses macula
used for central/focused vision fovea
provides oxygen to the retina choroids
provides shape vitreous
signals to the brain to let us see opticnerve
controls viewing on objects from different distances ciliarybody
moves eye downward inferiorrectusmuscle
moves eye upward superiorrectusmuscle

Mirrors and Lenses Crossword Puzzle

Type
Crossword
Description

A copy of an object formed by reflected or refracted rays of light. Image
A flat sheet of glass that has a smooth, silver-colored coating on one side. Plane Mirror
The image you see in a plane mirror. Virtual Image
A mirror with a surface that curves inward like the inside of a bowl. Concave Mirror
An imaginary line that divides a mirror in half. Optical Axis
The point at which rays parallel to the optical axis reflect and meet. Focal Point
An upside-down image formed where rays of light meet. Real Image
A mirror with a surface that curves outward. Convex Mirror
An image of a distant object caused by the refraction of light. Mirage
A curved piece of glass or other transparent material that refracts light. Lens
A lens that is thinner in the center than at the edges. Concave Lens
A lens that is thicker in the center than at the edges. Convex Lens

Sound and Light Crossword

Type
Crossword
Description

a longitudinal wave that is caused by vibrations and that travels through a material medium Soundwave
a measure of how high or low a sound is perceived to be, depending on the frequency of the sound wave Pitch
slow vibrations of frequencies lower than 20 Hz Infrasound
any sound wave with frequencies higher than 20,000 Hz Ultrasound
a phenomenon that occurs when two objects naturally vibrate at the same frequency; the sound produced by one object causes the other object to vibrate Resonance
sound navigation and ranging, a system that uses acoustic signals and returned echoes to determine the location of objects or to communicate Sonar
a unit or quantum of light; a particle of electromagnetic radiation that has zero rest mass and carries a quantum of energy Photon
in physical science, the rate at which energy flows through a given area of space Intensity
radio detection and ranging, a system that uses reflected radio waves to determine the velocity and location of objects Radar
a line in space that matches the direction of the flow of radiant energy Light ray
an image from which light rays appear to diverge, even though they are not actually focused there; a virtual image cannot be projected on a screen Virtual image
an image that is formed by the intersection of light rays; a real image can be projected on a screen (563) Real image
a transparent object that refracts light waves such that they converge or diverge to create an image Lens
the increase of an object's apparent size by using lenses or mirrors Magnification
in optics, a system that consists of two or more plane surfaces of a transparent solid at an angle with each other Prism
in optics, the process of separating a wave (such as white light) of different frequencies into its individual component waves (the different colors) Dispersion