Podcast
Questions and Answers
Match the appropriate word from the word list with the correct description in column A.
Match the appropriate word from the word list with the correct description in column A.
A line that is perpendicular to the surface = normal A smooth, flat reflecting surface = plane mirror A light source from a chemical reaction = chemiluminescence The angle between the reflected ray and the normal = angle of reflection The distance from the mirror to the focal point = focal length A light ray that travels towards the mirror = incident ray A line drawn normal to the centre of a spherical mirror = principal axis A type of mirror that always produces a virtual image that is smaller than the object = convex mirror (diverging) A source that produces its own light = luminous Light emitted from a material being heated = incandescence A light source found in living organisms = bioluminescence An example of a primary additive colour = Red (red green Blue) The type of reflection off an irregular surface = Diffuse A material that scatters light = Translucent The angle between the incident ray and the normal = angle of incidence A object that only reflects light = non-luminous
Match each electromagnetic wave from column A with the term from column B.
Match each electromagnetic wave from column A with the term from column B.
X-rays = medical imaging ultraviolet light = vitamin D radio waves = telecommunication Infrared light = tv remote control microwaves = radar gamma rays = cancer treatment visible light = theatre concert effects
List the seven colours that are identified in the visible spectrum of white light.
List the seven colours that are identified in the visible spectrum of white light.
Red, orange, yellow, green, blue, indigo and violet
Clearly state the two laws of reflection.
Clearly state the two laws of reflection.
Signup and view all the answers
When light is traveling from a faster medium to a slower medium how does the light bend (towards or away from the normal)?
When light is traveling from a faster medium to a slower medium how does the light bend (towards or away from the normal)?
Signup and view all the answers
With concave mirrors the image you get depends on the position of the object, but with a convex mirror it does not, what are the FOUR characteristics of an image formed by a convex mirror?
With concave mirrors the image you get depends on the position of the object, but with a convex mirror it does not, what are the FOUR characteristics of an image formed by a convex mirror?
Signup and view all the answers
Sometimes the image in a concave mirror is upright and sometimes it is inverted.
Where must you be to see an upright image of yourself?
Sometimes the image in a concave mirror is upright and sometimes it is inverted. Where must you be to see an upright image of yourself?
Signup and view all the answers
Sometimes the image in a concave mirror is upright and sometimes it is inverted.
Where must you be to see an inverted image of yourself?
Sometimes the image in a concave mirror is upright and sometimes it is inverted. Where must you be to see an inverted image of yourself?
Signup and view all the answers
Why are convex mirrors placed on sharp turns in parking garages?
Why are convex mirrors placed on sharp turns in parking garages?
Signup and view all the answers
Under what conditions will light totally internally reflect.
Under what conditions will light totally internally reflect.
Signup and view all the answers
What is refraction?
What is refraction?
Signup and view all the answers
What are the primary light colours? ______
What are the primary light colours? ______
Signup and view all the answers
What are the secondary light colours? ______
What are the secondary light colours? ______
Signup and view all the answers
If rays of red, green and blue light overlap what would you see?
If rays of red, green and blue light overlap what would you see?
Signup and view all the answers
What colours of stage lights cannot be used to make a green dress appear black? ______
What colours of stage lights cannot be used to make a green dress appear black? ______
Signup and view all the answers
If a green filter followed by a yellow filter is used with white light. What would you see?
If a green filter followed by a yellow filter is used with white light. What would you see?
Signup and view all the answers
What is the complementary colour to the primary light colour red? ______
What is the complementary colour to the primary light colour red? ______
Signup and view all the answers
What colour filter would need to be placed in front of an object in order that a cyan object will appear blue? ______
What colour filter would need to be placed in front of an object in order that a cyan object will appear blue? ______
Signup and view all the answers
Study Notes
Optics Test Review
-
Reflection:
- Angle of incidence equals angle of reflection
- Incident ray, reflected ray, and normal are on the same plane
-
Electromagnetic Spectrum (least to most energetic):
- Radio, microwave, infrared, visible light, ultraviolet, x-ray, gamma rays
-
Electromagnetic Waves and Their Uses:
- X-rays: medical imaging
- Ultraviolet light: vitamin D production
- Radio waves: telecommunication, radar
- Infrared light: TV remote controls, theatre/concert effects
- Microwaves: TV remote controls, radar
- Gamma rays: cancer treatment
- Visible light: medical imaging, theatre/concert effects
-
Primary Colors of Light:
- Red, green, blue
-
Secondary Colors of Light:
- Cyan, yellow, magenta
-
Combining Primary Colors:
- Combining red, green, and blue light produces white light
-
Color Filters:
- A green filter followed by a yellow filter with white light produces yellow
- A color filter opposite of another color creates white light. The opposite of red is cyan
-
Types of Mirrors:
- Plane mirror: Produces a virtual image that is the same size as the object, upright, and laterally inverted.
- Convex mirror: Always produces a virtual image that is smaller than the object, upright.
-
Types of Reflection:
- Specular: Reflection off a smooth surface
- Diffuse: Reflection off an irregular surface
-
Luminous vs Non-luminous:
- Luminous: Produces its own light (e.g., sun, lightbulb)
- Non-luminous: Does not produce its own light (e.g., a book)
-
Light in Different Media:
- Light bends (refracts) when moving from one medium to another depending on how fast it travels in that medium
- Total internal reflection occurs when light is traveling from a slower to faster medium and has an angle greater than the critical angle.
-
Terms:
- Angle of Incidence: Angle between the incident ray and the normal
- Angle of Reflection: Angle between the reflected ray and the normal
- Focal Length: Distance from the mirror to the focal point
- Incident Ray: Ray of light striking a surface
- Normal: Line perpendicular to the surface
- Reflected Ray: Ray of light that bounces off a surface
- Principal Axis: Line passing through the center of a spherical mirror or lens.
- Plane Mirror: A flat mirror that produces virtual, upright, and laterally inverted images of the same size as the object.
Additional Information
- Detailed diagrams for ray diagrams with mirrors and lenses are required, and descriptions of the image characteristics for each diagram.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Prepare for your optics test with this comprehensive review. Cover essential topics like reflection, the electromagnetic spectrum, and color theory, including primary and secondary colors. The quiz will help reinforce your understanding of the practical applications of various electromagnetic waves.
