Types of Light
When light is produced because materials are heated. Ex. old light bulbs
Incandescent
When light bounced off an uneven surface, this type of reflection is called...
Diffuse reflection
What are the SALT characteristics for any image in front of a plane mirrors.
Size: Same size
Attitude: Laterally inverted
Location: Behind the mirror
Type: Virtual
Another name for concave mirrors is...
Converging mirror
Another name for convex mirrors is...
Diverging mirror
This kind of light is produced when electrical current flows through a gas. Ex. Neon signs
Electric Discharge
When light bounces off a smooth surface, this type of reflection is called...
Specular reflection
What are the two components of the laws of reflection?
1. The angle of incidence is always equal to the angle of reflection of light.
2. The incident ray, reflected ray and normal all lie in the same plane.
This type of mirror can be used as a make up mirror or as part of a solar oven.
Concave/converging
This type of mirror can be used in cars to provide a wide range of view or for security in convenience stores.
Convex/diverging mirror
Certain materials called phosphors absorb ultra violet light energy from the surroundings, store it, then emit the energy as visible light. Ex. glow in the dark toys.
Phosphorescent
Light travels as
Electromagnetic waves
True or false: A normal is a line that is parallel to the reflected surface.
False - the normal is a line perpendicular to the reflected surface.
If an object is located beyond C in front of a concave mirror, the SALT characteristics would be...
Size: Smaller
Attitude: Inverted
Location: Between C & F
Type: Real
If an object is located anywhere in front of a convex mirror, the SALT characteristics of the image would be...
Size: Smaller
Attitude: Upright
Location: Behind the mirror
Type: Virtual
Materials that absorb violet and ultraviolet light but then immediately release the energy as visible light. Ex. highlighter pens
Fluorescent
Order the following types of electromagnetic radiation from lowest energy to highest energy:
- Ultraviolet light
- Gamma rays
- X-rays
- Radio waves
- Microwaves
- Visible light
Radio , microwaves, visible light, ultraviolet light, x-rays, gamma rays
True or false: To find an image in a plane mirror, we always extend the incident ray line as a dashed line back behind the mirror.
False. We extend the reflected ray line as a dashed line back behind the mirror.
If an object is located at C in front of a concave mirror, the SALT characteristics of the image would be...
Size: Same size
Attitude: Inverted
Location: At C
Type: Real
If an object is located at F in front of a concave mirror, the SALT characteristics of the image would be...
No image is produced
When light is produced through the mixture of chemicals. Ex. glow sticks used in car emergency kits.
Chemiluminescence
Differentiate between a luminous and non-luminous object.
Luminous objects create their own light. Non-luminous objects can only reflect or absorb light.
You walk into a darkened room and turn on a flashlight. You see an image of the flashlight reflecting off a plane mirror in front of you. The image is 4.2 m away from you. How far away is the plane mirror from you?
2.1m
If an object is located between C and F in front of a concave mirror, the SALT characteristics of the image would be...
Size: Larger
Attitude: Inverted
Location: Beyond C
Type: Real
If an object is located between F and the mirror in front of a concave mirror, the SALT characteristics of the image would be...
Size: Larger
Attitude: Upright
Location: Behind the mirror
Type: Virtual