Physics Pre-AP Final Exam
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| 68661935 | How is Light created at the atomic level? | The atom's electron electric magnetic field vibrates The answer on the test is going to be A, as Mr. Scales, so kindly told us.... | |
| 68661936 | What is the Electromagnetic Spectrum in oreder? | Radio Waves, Microwaves, Infared waves, Visible Light, Ultra Violet light, x rays, gamma rays | |
| 68661937 | All velocities are variable except for: | The speed of light | |
| 68661938 | What is Huygen's Principle? | Each point of a wave front acts as a new wave source. | |
| 68661939 | ElectroMagnetic Spectrum ratios of frequency/wavelength | (Less Frequency/Bigger wavelength)/ (More frequency/smaller wavelength) | |
| 68661940 | What is brightness when you have 5 times the original distance | I≈1/d² is the formula for brightness, so I≈1/(5)², and when you simplify it you get, I≈1/25 | |
| 68661941 | What is the relationship between incoming and reflected angles | Incoming and reflected light angles are equal | |
| 68661942 | What happens with reflection at the atomic level? | The atom absorbs and reemits the light | |
| 68661943 | Describe the image ray diagram in a plane mirror | d(original)=d(image) It has a virtual image due to apparent source of light ray | |
| 68661944 | What are the Image characteristics of a concave mirror? | Magnifies and Image, converges light rays (mirror caves in) Like a make-up mirror, a girl's best friend! | |
| 68661945 | What are the Image characteristics of a convex mirror? | Reduces and image, Diverges light rays (Mirror curves out) Like a security Mirror, that we occasionally catch ourselves looking in! | |
| 68661946 | What Kind of mirror does a telescope have? | Concave | |
| 68661947 | What are the three colors of Light? | Red, Blue, and Green | |
| 68661948 | What are the three colors of Pigment? | Yellow, cyan, and magenta | |
| 68661949 | What color is a banana in blue light? | Black (Banana is yellow(R&G) Blue light is on it so it is absorbing all three colors, so it's black) "Does anyone have a banana and some blue light we can try it with???" | |
| 68661950 | How many filters are needed to block out class light? | 2 We held those little black plastic sheets up to the light and when you put two together it blocked the light, remember? | |
| 68661951 | How many filters are needed to black out water glare? | 1 Like Sunglasses!:) NOT KANYE GLASSES, they will not have the same effect... Sorry Mr. West. | |
| 68661952 | What is light bending going through a lens? | refraction | |
| 68661953 | What causes light to bend? | One side of wave changes speed first | |
| 68661954 | What is the index of refraction? | Measure of speed of light changes in media due to its density | |
| 69886533 | Is a concave LENS converging or diverging? | Diverging | |
| 69886534 | Is a convex LENS converging or diverging? | Converging | |
| 69886535 | Is a convex LENS reduced or magnified? | Magnified | |
| 70168298 | Is a concave LENS reduced or magnified? | Reduced | |
| 70168299 | Lens curvature affects what two things? | Magnification/reduction and focal length | |
| 70168300 | What would you use to create total internal reflection? | Prisim and fiber optic cables | |
| 70168301 | What is dispersion of a prism? | White light into different colors | |
| 70168302 | What is the cause of a mirage? | Refraction caused by different air temperature and density | |
| 70168303 | What are the two kinds of interference? | In phase and out of phase | |
| 70168304 | What is the end result of the two kinds of interference? | Inphase=constructive(increase amplitude) Out of Phase= destructive (decrease amplitude) | |
| 70168305 | Which experiment creates and interference pattern? | twin slit experiment | |
| 70168306 | What is diffraction? | light bending through a slit | |
| 70168307 | How does diffraction grading create colors? | Constructive interference | |
| 70169366 | What does the lens resolution depend on? | diameter | |
| 70169367 | What does coherent monochromatic mean? | 1 wavelength, in phase | |
| 70169368 | How is cd, dvd, and laser data stored? | Digital binary | |
| 70169369 | What are the two kinda of electric charge? | Positive (atoms loses electron) and negative(atom gains electron) | |
| 70169370 | What is charge conservation? | for every positive there is a negative | |
| 70169371 | Rubbing a baloon on hair is an example of? | charge transfer by contact | |
| 70169372 | What makes a metal conductor conduct? | it has loose electrons | |
| 70169373 | Why does a rubbed baloon pick up styrofoam peanuts? | Charged Polarization | |
| 70169374 | What are the factors in determining force in columb's law? | Charge(Q),and DIstance(d) | |
| 70185143 | Why does a Van de Graff have a curved dome instead of a sharp end? | So it has the maximum charge, instead of a leaking charge | |
| 70185144 | How would you create electric potential energy? | Move the electron towards the negative side of the electric field. | |
| 70185145 | If you give one joule/columb what is the result? | IV | |
| 70185146 | What is the volatge of a AA battery? | 1.5 volts | |
| 70185147 | What is the voltage of a Car battery? | 12 volts | |
| 70185148 | What is the US electric current? | 120 volts It's 220 volts in the rest of the world, like on the boats in New Zealand, where Mr. Scales is from.. | |
| 70185149 | How is a capacitator designed? | With 2 metal plates, one positive, and one negative | |
| 70185150 | What is the insulator in between two metal plates in a capacitator? | Dialectric | |
| 70185151 | What is the electric current unit equivalent to? | 1Amp= 1columb/ 1sec | |
| 70185152 | What direction is the electric curent going? | + --------> - (positive to negative) | |
| 70185153 | What is the difference between electron drift velocity and electric field interaction? | Interaction between electric fields is very, very, fast. (Mr.scales? What does that random "v" on the board mean? ummm well, it means very? actually it should be very very... Okay Mr.Scales) | |
| 70185154 | What is the difference between AC and DC? | AC=electron changes direction(created by a generator) DC=electron goes in one direction(created by battery) | |
| 70185155 | What kind of wire is used to decrease resistance? | Thicker, shorter wire (like in a washing machine) | |
| 70185156 | What kind of wire is used for maximum resistance? | a bulb filament (itty bitty wire) | |
| 70185157 | What does V stand for? and what is it measured in? | Voltage, and it's measured in Volts ... duh Mr. Scales | |
| 70185158 | What does I stand for? and what is it measured in? | Current, it's measured in Amps | |
| 70185159 | What does R stand for, and what is it unit of measurement? | Resistance, and it's measured in Ohms | |
| 70185160 | What is the electric power unit of measurement equivalent to Power=IV? | a Watt Light(like lightbulbs are measured in watts) is knowledge, and Knowledge is power! :) | |
| 70185161 | Why is electric current distributed at a high voltage? | Higher Voltage=Less resistance! | |
| 70185162 | What are some characteristics of series circuits? | As the Number of bulbs in the circuit increases, Resistance increases. If one bulb goes out, they all go out, (Not the best idea for a circuit... It's only as strong as it's weakest link!) And Voltage divides. | |
| 70185163 | What are some characteristics of paralell circuits? | As the Number of Bulbs increases, the amount of resistance decreases. If one bulb goes out, the others all stay lit, (This is the better circuit plan to use! and that's why it's the brightest of all the circuits...) I divides, (as in current divides, Not Me.) | |
| 70185164 | Which is the brightest circuit? | Paralell | |
| 70185165 | Which circuit has the largest voltage drop? | Parallel and a one bulb circuit (he might have an answer choice that says something like, B and c or something along those lines... You never know what to expect with Gordon...) | |
| 70185166 | Which circuit has the most resistance? | Series circuit | |
| 70185167 | Which has the most current throughout? | Single bulb circuit | |
| 70185168 | If one bulb goes out all do? | Series | |
| 70200144 | What was measured in the electric circuits lab? | Amps and volts | |
| 70200145 | What placement of magnets caused the iron shavings to repel? and which caused it to attract? | The NN magnets caused it to repel, and the NS magnets caused it to Attract | |
| 70200146 | What is the difference between permomagnet and an electromagnet? | Permomagnet: atoms are aligned, (electrons spin) Electromagnet: The electric current in wire is moving through(like when you rub a piece of magnetite on a needle repeatedly in the same direction, it makes the needle a temporary, or electomagnet.) | |
| 70200147 | Know Your right hand rule.. | Sorry, there was no way to right this in a question form:/ | |
| 70200148 | Where is the magnetic field inside a solenoid? | A solenoid is a magnetic field located inside a wire loop Does anyone remember studying this? Cause I sure don't.... | |
| 70200149 | What is the magnetic domain? | Then Magnetic domain is aligned iron atoms | |
| 70200150 | How does the loudspeaker method work? | There is an interaction between permant and an electromagent | |
| 70200151 | What makes the motion in an electric meter mechanism? | An electric motor | |
| 70200152 | What is moved in wire to make electricity? | In wire, electrons being moved by magnetic field | |
| 70200153 | When do you have enduced maximum velocity? | When the loop is parallel to the magnetic field | |
| 70200154 | What is lens law? | Introducing current in a loop with a megnetic or another loop? | |
| 70200155 | What is faraday's law? | Farday's law, basically says that Induced Voltage is proportional to the number of loops (The # of loops is determined by the magnetic field strength(Which is The change in magnetic field)) | |
| 70200156 | Know what an AC current graph looks like. | Look at your notes, There the answer lies.... ;D | |
| 70200157 | What is the difference between AC vs DC generator construction? | Split ring vs Double ring | |
| 70200158 | What is the US current? | 120 volts, 55 hertz | |
| 70200159 | How do you construct an electric motor? | Rotating wire loops between Magnets | |
| 70200160 | What is a transformer used for? | Defeating evil, Go optimus prime! :D Actually, It's used for transforming voltage.... Lame. | |
| 70200161 | What principle is used in a transformer? | Faraday's law | |
| 70200162 | What does the output voltage depend on in a transformer? | Loop Ratio | |
| 70200163 | What does the input current create in a transformer? | Magnetism (Out put creates electricity) | |
| 70201373 | What is the relationship between self induction and back EMF? | The result of self induction is less efficient than back EMF | |
| 70201374 | What is Back EMF? | Back EMF is when a Magnetic field induces a new current | |
| 70201375 | What does black body radiation and UV breakdown show? | It shows the light as a particle | |
| 70201376 | What are light quanta/photons? | Specific quantity of energy/particle | |
| 70201377 | In the formula E= hf what does E stand for? | E= energy of one photon at a frequency of f | |
| 70201378 | In the formula E= hf what does h stand for? | Planck's Constant 6.63 X10^-34 | |
| 70201379 | What does the photoelectric effect do? | It shows light as a particle | |
| 70201380 | What types of technology use the photoelectric effect? | Solar panels | |
| 70201381 | In the formula KE=hf-hfT, what does hf stand for? What does hfT stand for? and what does fT Stand for? | hf= light energy | |
| 70205469 | In the formula KE=hf-hfT, What does hfT stand for? | hfT=work function (energy to free electrons) | |
| 70205470 | In the formula KE=hf-hf₇, what does f₇ Stand for? | fT=Treshold frequency of light | |
| 70205471 | Describe the photo electric effect? | Light hitting metal atoms ejects electrons | |
| 70205472 | What is the compton shift? | Photon wavelength decreases when it hits an electrons | |
| 70205473 | What did Rutherford's experiment show? | Atoms are mostlty empty and radio activity can pass through atoms | |
| 70205474 | What were they looking for in Rutheford's experiment? | They were looking for the Structure of atoms | |
| 70205475 | What is the emission spectra? | ther amount of Light frequency emitted by atoms | |
| 70205476 | How does the number of spectra lines relate to the way electrons change orbit? | They are equal | |
| 70205477 | What did bohr's experiment show? | H emission spectra showed how electrons orbit | |
| 70205478 | What is the dual nature in light and matter? | Light and matter are both wave and particle | |
| 70205479 | What isn the uncertainty principle? | can't know both the position and the momentum of the electron | |
| 70205480 | what is the mechanism fo conductors? | they have lose outer electrons | |
| 70205481 | what are semi conductors made out of? | dope silicon | |
| 70205482 | what are the semi conductors used for? | used for a transitor (switch) | |
| 70205483 | what are diodes? | where current flows in 1 direction | |
| 70205484 | how do diodes relate to AC and DC? | they change AC to DC | |
| 70205485 | what does a transitor do? | amplifies the signal | |
| 70205486 | what makes a super conductor so super? | it has no electric assistance | |
| 70205487 | what are some characteristics of super conductors? | perfect crystal lattice | |
| 70205488 | what is atomic # and atomic mass? | Atomic #: number of protons mass #: protons plus neutrons | |
| 70205489 | what does E equal in E=mc²? | E= atoms rest energy | |
| 70205490 | What are neutrons? | Neutrons= strong nuclear force | |
| 70205491 | what do neutrons hold together? | protons | |
| 70205492 | what is the cause of unstable nucleus, decay, and radio activity? | It is due to protons repelling! | |
| 70381013 | What are the three types of radiation? | Alpha, Beta, Gamma... ......beginning and end, you're my savior messiah, redeemer and friend! You're my prince of peace and I will live my life for you! Am I not the only one who sings this song when I hear these three types of radiation?... Maybe so. | |
| 70381014 | What is Beta Decay caused by? | Weak Nuclear force | |
| 70381015 | What is the result of Nuclear decay? | Radio Activity and transmutation Ahhhh!!!! Mutant ninja turtles!!!! | |
| 70381016 | What is nuclear fission? | a nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy | |
| 70381017 | What is U-235 used for? | To heat water! | |
| 70381018 | What is an example of nuclear fusion? | Stars | |
| 70381019 | What are the matter particles and Proton and Neutron components? | Quarks | |
| 70381020 | What is the Evolution of the 4 fundamental forces? | 1)Weak 2)Strong nuclear 3)Electromagnetic 4)Gravity | |
| 70381021 | What is the evolution of atoms? | Energy --------> Quarks | |
| 70381022 | What is antimatter? | When Protons are negative, and electrons are positive. (Opposite charges) | |
| 70381023 | What is the general theory of relativity? | General theory= Special Theory+Gravity |