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level: Level 1

Questions and Answers List

level questions: Level 1

QuestionAnswer
It attracts iron or anything made of ironMagnet
It keeps magnetism for a long time, creates its own magnetic field and is made of magnetized materialsPermanent Magnet
Made from materials easy to magnetize but loose magnetism immediatelyTemporary (Induced) Magnets
Which one is not magnetic: Nickel(Ni), Cobalt(Co), Gold(Au), Iron(Fe)Gold(Au)
The force of attraction or repulsionMagnetism
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 strongestMagnetic poles
produced when magnetic poles interactMagnetic force
Region around a magnetic in which magnetic forces can actMagnetic Field
T or F: The closer together the magnetic field lines are the lesser the magnetic force isFalse-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 strengthunlike 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 1600the earth is a magnet
T or F: Magnetic Poles ARE NOT aligned with geographic polesTrue (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 fieldVan 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 deflectsHans 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 otherperpendicular
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 circuitGalvanometer
Instrument used for determining the magnitude of current presence of the electrical circuitAmmeter
refers to the production of electric current due to the change of magnetic fieldElectromagnetic 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 magnetismElectromagnetism
temporary magnet made by wrapping a current carrying wire around an iron coreElectromagnet (these are useful because they can be turned on and off)
T or F NO current NO magnetic fieldTrue
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 underTransverse (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 fieldFalse- 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 dispersionTrue (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 behaviorTrue
Fill in the blanks: The _____ (higher, lower) the frequency, the ____ (longer, shorter) the wavelength, the higher the frequency, the _____(shorter, longer) the wavelengthlower, 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 wavelengthsRadio 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 distanceGlobal Positioning System (GPS) switchin them global positions for yOoUu
these use short wave radio waves with a magnet to create an imageMagnetic 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 wavelengthgamma rays, x-rays, ultraviolet rays, visible light, infra red, micro waves, radio waves
T or F: microwaves heat up water and fat particles through vibrationTrue
uses temperature that objects give off ex: thermogramInfrared (means below red)
The only type of EM wave detected by the human eyeVisible 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