Search results

  1. wizzkids

    Provisional Accreditation

    Accreditation matters if you are looking to have your qualifications recognised by a Professional Engineering Institution (such as IE Aust or the American Nuclear Society) and it might have an effect if you apply for a post-grad placement overseas. As far as entering the workforce goes, it would...
  2. wizzkids

    Module 1 Question

    Module 1 is "Properties of Matter" and it includes flame tests of different ionic solutions of metals, and spectral evidence supporting the Bohr model of the atom. I suppose you could ask a student to recount a first-hand investigation of flame test for potassium ions and copper ions. Recall the...
  3. wizzkids

    Mod 7 UV Catastrophe Question

    I think you could say, "Planck showed that there was a decreasing intensity of radiation for frequency f > kT/h because radiant energy was quantized according to E = hf and if E >>kT then it could not be emitted."
  4. wizzkids

    Mod 7 UV Catastrophe Question

    Good questions - this shows you are really engaging. (i) Something I didn't mention before it is extremely unlikely that all the oscillators will have exactly the average energy kT. Entropy will make sure that this doesn't happen. There is a spread of energies or a distribution function for...
  5. wizzkids

    Mod 7 UV Catastrophe Question

    Firstly, let's clear up your description of the "classical" intensity distribution function. The "classical" intensity distribution function was derived by Lord Rayleigh and Sir James Jeans around 1905 - 1910. This function plots the intensity (watts per square metre per steradian) versus...
  6. wizzkids

    Reynolds 853 and X100

    Reynolds 853 is a low-carbon steel alloy containing manganese, chromium, molybdenum, copper and silicon. 853 tubes are manufactured in very thin wall thicknesses, like 0.5 mm to 0.4 mm. They are weldable by conventional tungsten-inert-gas (TIG) welding and gas-metal-arc-welding (GMAW). Tubes are...
  7. wizzkids

    What is a good degree that complements civil engineering ?

    Have you thought about Mining Engineering? There are plenty of jobs and they pay way above market rates for good people.
  8. wizzkids

    Projectile Motion inquiry

    dy/dx (x) is proportional to the magnitude of instantaneous vertical component of velocity of the projectile. It will have a magnitude of zero at the point of inflection when the projectile achieves it's maximum altitude.
  9. wizzkids

    Laser

    LASER stands for Light Amplification by Stimulated Emission of Radiation. LASER devices are monochromatic by nature because the light amplification effect only occurs at one particular photon energy and one particular photon wavelength. The photons that are emitted are coherent and monochromatic.
  10. wizzkids

    Mod 3 q help

    I think you are right. However, this is a weird question. To construct an electrochemical cell you would normally construct it from two half-cells. Each half-cell would contain a metal electrode in equilibrium with a solution of its own ions. The two half-cells would be connected by a...
  11. wizzkids

    Perms and Coms

    There are 70 ways to select 4 members from a set of 8. However not all of these are proper words. I can find 19 words that are proper words in the English language (not counting repeats like "labs"): slay subs Susy Yass lass lays labs ally ably bays ball bass buys bull busy slab slay Saul says
  12. wizzkids

    Digitial animation gifs

    To create an animated GIF you need to design each frame of the animation. For smooth motion you could be looking at designing 50 frames. Whatever GIF animation software you choose, you still need to create the images before you can assemble them into the finished filmstrip, so you need to find...
  13. wizzkids

    physics q

    According to Quantum Mechanics, the ball can be considered to be at the top of its path as well as everywhere else at the same time. There is only a higher probability of finding the ball at the top of its path at any given moment. You need to calculate the Wave Function of the Ball to work out...
  14. wizzkids

    ???

    It seems like a perfectly good question. There are eight elements in the third period. They each have very different electronegativities, some are electron donors (Na, Mg, Al) and some are electron acceptors (P, S, Cl). Si is an interesting case to discuss. Then there is Ar which doesn't form...
  15. wizzkids

    digital animation like gifs for ionic bonding

    Here is a website that I like: Java Chemistry Lab It's coded in JSmol and it lets you drag and drop atoms to make covalently bonded molecules and ionically bonded lattice. Another good one is run by Dr Karl Harrison, and it also uses the JSMol library: https://3dchem.com
  16. wizzkids

    physics

    If you have some time, go watch this video by Drs Hume and Ivey, It's all about relative velocity. Pretty cheesy, but absolutely 100% relevant to solving your problem. Frames of Reference (1960)
  17. wizzkids

    mod 3 physics skills task

    Too hard to call. Ask one of the students in Year 12 what they did last year, and it's bound to be something similar.
  18. wizzkids

    Anyone else doing EES?

    Oooh yeah, how about a depth study on Hunga Tonga-Hunga Ha'apai (Tonga) eruption, January 2022? (for Module 6)
  19. wizzkids

    Buffer Systems

    Hydroxide ions don't react with un-dissociated propionic acid molecules (that's the molecule on the left). Hydroxide ions react with the hydrogen ions on the right. If you decrease the concentration of hydrogen ions it favours the forward reaction. Do you get it now?
  20. wizzkids

    K Calculation Questions

    This discussion lies totally outside high school syllabus. There are two ways that Iron(II) hydroxide can dissolve. Iron(II) hydroxide has a region of solid stability between pH 8 and pH12. The stability of the various hydroxides of iron can be conveniently shown on the Pourbaix Diagram. I have...
Top