1It is produced by vibrating or flowing charges
Electricity
2Is commonly attributed to ferromagnetism and electromagnetism depending on the material and moving charges
Magnetism
3What are the two magnetic poles?
North and South seeking poles
4He accidentally discovered that a compass needle deflected when current was switched on
Hans Christian Oersted
5He conducted his famous induction ring experiment showing that current can be produced by sources of changing magnetic fields
Michael Faraday
6Is a phenomenon of inducing a voltage in a conductor by changing the magnetic field near the conductor
Electromagnetic Induction
7The process by which the screws become magnets is called 1._______ . This same process is the reason why magnets 2._________ non-magnetized magnetic substances such as the screw. The screw becomes an 3.________ magnet with the end nearer the magnet having an 4.________ polarity to that of the permanent magnet. Hence attraction happens 5._______ magnetic induction occurs
1.Magnetic Induction
2.Attract
3.Induced
4.Opposite
5.After
8A kind of lens that is thicker at the edges and thinner in the center. It is called a diverging lens.
Concave lens
9A curved mirror in which the reflective surface bulges away from the light source. It is called a converging mirror.
Concave Mirror
10A kind of lens that is thicker in the center than the edges. It is called a converging lens.
Convex Lens
11A curved mirror in which the reflective surface bulges towards the light source. It is calle a diverging mirror.
Convex Mirror
12A polished or smooth surface (as a glass) that forms images by reflection
Plane Mirror
13The bouncing of light rays when it hits a surface
Reflection of Light
14The bending of light rays when passing obliquely from one medium into another
Refraction of Light
15Distance between the center of curvature and mirror
Radius
16A smooth reflecting surface, usually made of polished metal or glass that has been coated with metallic substances. There are two types of this: Plane and Curved
Mirror
17The ray of light approaching the mirror represented by an arriw approaching an optical element like mirror
Incident Ray
18Is the ray of light that leaves the mirror and is represented by an arrow pointing away from the mirror
Reflected Ray
19This is the reflection of light in the smooth surfaces such as the mirrors or calm body of water
Specular or Regular Reflection
20This is the reflection of light on rough surfaces such as clothing, paper, wavy water and the asphalt roadway
Diffused or Irregular Reflection
21 an imaginary line that can be drawn perpendicular to the surface of the mirror at the point of incidence where the ray strikes the mirror.
Normal Line
22FOUR PRINCIPAL RAYS
-A ray of light parallel to the principal axis, hit the mirror, then reflected through the focus
- P-F RAY
- F-P RAY
- C-C RAY
- V RAY
23FOUR PRINCIPAL RAYS
-From top of object, A ray of light passing through the focus, hit the mirror, reflected parallel to the principal axis
- P-F RAY
- F-P RAY
- C-C RAY
- V RAY
24FOUR PRINCIPAL RAYS
-A ray of light passing through the focus, hit the mirror, reflected parallel to the principal axis
- P-F RAY
- F-P RAY
- C-C RAY
- V RAY
25FOUR PRINCIPAL RAYS
-A ray of light directed towards the vertex reflects at equal angle from the principal axis
- P-F RAY
- F-P RAY
- C-C RAY
- V RAY
26Electrical energy to Mechanical Energy
27Mechanical Energy to Electrical Energy
28Are basically images which cannot be visually projected on a screen
Virtual Images
29Is a pictorial representation of how the light travels to form an image and can tell you the characteristics of the image
Ray Diagram/Ray Diagraming
30The Center of the sphere of which the mirror is part
Center of Curvature
31have the longest wavelength in the electromagnetic spectrum ex. television, radio communication
Radio waves
32have smaller wavelengths than radio waves and can penetrate the atmosphere of the earth ex. satellite communications, radar, and cooking
microwaves
33lies beyond the red end of the visible light. it is emitted by all objects. the amount and wavelength of radiation depend on temperature ex. Thermal Scanner, Remote Control
Infrared
34when white light passes through a prism it is separated into its constituent colors: the red orange yellow green blue indigo and violet (red has the longest wavelength and violet has the shortest)
Visible Light (ROYGBIV)
35have shorter wavelength than visible light and carry more energy. it lies just beyond the violet and of the visible spectrum
Ultraviolet
36comes just after the ultraviolet rays. they are of shorter wavelength but carries higher energy than the uv
X-Rays
37lies at the other end of the electromagnetic spectrum. they are the shortest in wavelength and highest in frequency. they carry the highest amount of energy, thus, they are more dangerous
Gamma Rays
38he proved the existence of radio waves in the late 1880s
Heinrich hertz
39he discovered the microwave
james clerk maxwell
40he conducted an experiment to investigate the existence of energy beyond the violet and of the visible spectrum
johann ritter
41he conducted an experiment measuring the difference in temperature between the colors and the visible spectrum
william herschel
42he accidentally discovered x-rays in 1895 while testing whether cathode rays could pass through glass
wilhelm roentgen
43identify each applications or uses of the following em waves. (Radio Waves)
- satellite television and communication
- radio and television communication
- medical treatment
- remote control, household electrical appliances
44identify each applications or uses of the following em waves (Microwaves)
- satellite television and communication
- radio and television communication
- medical treatment
- artificial lighting, optical fibers in medical uses, screen of electronic devices
45identify each applications or uses of the following em waves (Ultraviolet)
- medical use, engineering applications
- sterilization, Florescence
- satellite television and communication
- remote control, household electrical appliances
46identify each applications or uses of the following em waves (Gamma Rays)
- sterilization, fluorescence
- medical use, engineering applications
- artificial lighting, optical fibers in medical uses, screen of electronic devices
- medical treatment
47identify each applications or uses of the following em waves (Visible Light)
- artificial lighting, optical fibers in medical uses, screen of electronic devices
- medical use, engineering applications
- medical treatment
- sterilization, fluorescence