Notes

- 37 multiple choice questions. (Right or Wrong, "This is the part people get destroyed") ("Avoid this fate, the only way to prepare yourself for multiple choice questions is to try multiple choice questions) (Do Exam ss10)

- Short Answer Section (11 Questions) (worth 24 marks)
- Need to know how to calculate the coefficient of friction Ff = uFn, u=Ff/Fn
- The force that you need to just move an object is equal to the force of friction
- how to calculate the momentum of a photon, and if u are given its momentum how to find its wavelength (Modern Physics)
- GPE is expressed relative to a reference point (Trick Questions) (Example, Marker in the palm of Mr.qureshi's hand from the ground might be 1/2 joules but at his hand its 0
- Fx = kx (Remember elastic force equation)
- Learn how to calculate electric force, Fe = kq1q2/r2, and also this Fe= fsolan(q)
- Understand how to calculate Kinetic energy of an object that is moving very close to the speed of light. (Total energy of an object is not just E = mc^2, the total Energy = Erest + Ek, and the Erest = moc^2, Et = Mr (Relativistic mass) = mo / root 1 minus v2/c2
- Calculate the net electric field strength
- Length contraction, L = Lo(root1 - v2/c2)
- Figure out the frequency, or wavelength of light. (C = flanda)

Inquiry Questions (Out of 37) (5 questions)
- Relate back to projectile motion, and the calculation of horizontal and vertical components of vectors
- Conservation of Energy U >KE, qdeltav = 1/2mv^2,
- Magnetic Force, Fm = qvB, the magnetic force provides a centripetal force sometimes through devices so the equation becomes qvb = mv^2/r
- Conservation of momentum in 2 dimensions, worth a signficant amount (Solve a lot of those)
- Problems involving frictions and pulley systems

Communication (Do chapter 12, 17 marks)
- how to use electron volts, and the photoelectric effect of an experiment, what is the work function and how to find the kinetic energy of an electron dislodged from a metal plate
Ek = hf -W (hf = energy of a photon), (Electrons of every metal have their own specific work function)
- Know to convert to electron volts to joules (Know this very well)
Drawing free body diagrams (Fn, Fs, Fa, Fg, practice how to draw free body diagrams)
- Energy of a particular photon (E= hf), (Energy carried by a number of photons (E=nhf)
- Formula for momentum of a photon is going to be important, (Momentum of a photon is p= h/landa, and landa = h/p, which means landa = h/mv)
- v = 2pier/T, T= 1/f , and f=1/T (Frequency is the number of cycles per second, and Period is the time it takes to complete one cycle)
- Left and right hand rule, You use the left hand rule for negative charges, and right hand rule for conventional current and positive charges,
- Magnetic forces carried by a charge (Fm = qvb) Magnetic force carried by a conductor is Fm= ILB
(Draw a diagram of what the situation looks like, earn some part marks)
- Know how to calculate relativistic momentum, (Pr = Mrelativistic x V = mo/1rootv2/c2 (V) the current units kg.m/s

Application (15 marks)
- Understand how to analyze the conservation of energy of a rollercoaster
- Applications of Loren's factor, and specifically about time dilation
- Time dilation
- Diffraction Gratings will be on the exam for sure! (mLanda = dsinthetam) m = order of the bright fringe, the highest value sin can be is 1, if u set it to 1 then u are trying to figure out the max number of bright fringes u can see.
- what things can you do to increase the order of bright fringes, (is to decrease the value of D, use a different color of light or to change landa, another thing you can do is place the screen farther away, and the more fringes will appear)