It attracts iron or anything made of iron | Magnet |
It keeps magnetism for a long time, creates its own magnetic field and is made of magnetized materials | Permanent Magnet |
Made from materials easy to magnetize but loose magnetism immediately | Temporary (Induced) Magnets |
Which one is not magnetic: Nickel(Ni), Cobalt(Co), Gold(Au), Iron(Fe) | Gold(Au) |
The force of attraction or repulsion | Magnetism |
Atoms have magnetic property due to the spin of the electron. Group of atoms join so that their magnetic fields are all going in the same direction. What are these areas called? | Magnetic Domains |
Ends of a magnet where magnetic effect is strongest | Magnetic poles |
produced when magnetic poles interact | Magnetic force |
Region around a magnetic in which magnetic forces can act | Magnetic Field |
T or F: The closer together the magnetic field lines are the lesser the magnetic force is | False-stronger (closer distance conveys higher magnetic force) |
When these poles are placed near each other , their magnetic fields combine to produce a single
field of almost uniform strength | unlike poles |
Fill in the blanks: When like poles are placed near each other, their magnetic fields _____ each other and there is
a _____ point where combined field strength is ____ | cancel, neutral, zero |
Fill in the blanks: When the liquid in the earth flows, electric ____ move, which makes a magnetic ____ | charges, forces (The core consists of Iron and Nickel which are magnetic materials) |
What did William propose in 1600 | the earth is a magnet |
T or F: Magnetic Poles ARE NOT aligned with geographic poles | True (Magnetic South is Geographic North vice versa) |
How does a magnetic compass work? | compass needle points north because its north pole is attracted to the earth’s
magnetic pole |
The region where particles penetrate the filed due to solar wind bombarding the earth's magnetic field | Van Allen Belts |
Fill in the blanks: We use the right-hand rule when the charge is ____ | positive |
Who showed a current carrying wire passes over a compass
the needle which is a magnet the needle deflects | Hans Christian Oersted |
Fill in the blanks: The direction that the magnet points is ______(parallel, perpendicular, lunar) to the magnetic field around the wire. A shape of magnetic field around the wire is ____(linear, circular, tubular) | parallel, circular |
Lorentz Force or the second right-hand rule is mostly applied to? | freely moving charges (called cathode rays or otherwise push on electric currents) |
Fill in the blanks: In The Lorentz Force, the current, field, force must be _______(parallel, perpendicular) to each other | perpendicular |
In The Lorentz Force, the index refers to what? | direction of the field |
In The Lorentz Force, the middle finger refers to what? | direction of the force |
In The Lorentz Force, what finger refers to the direction of the current or charge? | thumb |
What can act just like a bar magnet? (magnetic domain, air solenoid, dough magnet) and from what rule is this from? | Air solenoid from Rule 3 Solenoid Rule |
Instrument use for detecting the strength and direction of small current presence in a circuit | Galvanometer |
Instrument used for determining the magnitude of current presence of the electrical circuit | Ammeter |
refers to the production of electric current due to the change of magnetic field | Electromagnetic Induction (increase the movement, Strength of the field/magnet, Increase the area of the coil, Increase the loops) |
refers to the relationship or interaction of electricity and magnetism | Electromagnetism |
temporary magnet made by wrapping a current carrying wire around an iron core | Electromagnet (these are useful because they can be turned on and off) |
T or F NO current NO magnetic field | True |
Fill in the Blanks: Electric Motors work due to _______(rational root theorem, attraction, force) and repulsion between the _____(motor, electromagnet, coconuts) and the permanent magnet cause the
electromagnet to _____(spin, move, bingeul bingeul round what comes around goes around) | attraction, electromagnet, spin |
T or F: Light is an part of the electromagnetic spectrum <(0o0)> | True (visible light is the only waves humans can see ;)) |
This is the type of wave EM (Electromagnetic Waves) fall under | Transverse (can travel w/o medium meaning they can travel through an empty space or vacuum like outer space<3) |
T or F: The change in magnetic fields that causes electric fields to change causes both fields to vibrate causing an electromagnetic field | False- electromagnetic WAVE kac dapat |
How fast d EM waves travel? | 300,000km or 300,000,000 m/s or #SpeedOfLight (can travel 8 times around the world in one second) |
T or F: the process wherein white light can be split into a range of colors using a prism is called dispersion | True (there are millions of every color, every hue that is represented by me and you) |
T or F: All EM Waves can travel through space, have different types of radiation and have different properties and behavior | True |
Fill in the blanks: The _____ (higher, lower) the frequency, the ____ (longer, shorter) the wavelength, the higher the frequency, the _____(shorter, longer) the wavelength | lower, longer, shorter (like the red color on the rainbow, it is longest because it has the lowest frequency) |
These waves have the lowest frequency and longest wavelengths | Radio Waves (fun fact, these waves are also emitted by stars and gases in space) |
this measures the time it takes radio waves to travel from several satellites to receiver, determining the distance | Global Positioning System (GPS) switchin them global positions for yOoUu |
these use short wave radio waves with a magnet to create an image | Magnetic Resonance Imaging (MRI) we gotta resonate |
Arrange the seven types of EM waves in descending order from the highest frequency and shortest wavelength to the lowest frequency and longest wavelength | gamma rays, x-rays, ultraviolet rays, visible light, infra red, micro waves, radio waves |
T or F: microwaves heat up water and fat particles through vibration | True |
uses temperature that objects give off ex: thermogram | Infrared (means below red) |
The only type of EM wave detected by the human eye | Visible light (violet-highest frequency; red-lowest) |
This EM wave is emitted by the sun, can be used as sterilization as it kills bacteria and is the reason skin tans. | Ultraviolet waves (UV) |
Fill in the blanks: X-rays' range of wavelngth is the spacing between the atoms of ____(solid, liquid, gas) It is used in _____applications. Its high penetrating power can _____ parts of the body; hence overexposure should be _____. | solid, medical, damage, avoided |
The highest frequency EM wave and the most dangerous, it is released during nuclear explosions. | Gamma rays |